Consulta: subjectFacets:"Invasive species"
Registros recuperados: 164
Data/hora: 04/06/2024 00:22:51

Anthropogenic Drivers of Ecosystem Change: an Overview
Provedor de dados: 7
Autores: Nelson, Gerald C; University of Illinois; gnelson@uiuc.edu; Bennett, Elena; McGill University;; Berhe, Asmeret A; University of California at Berkeley;; Cassman, Kenneth; University of Nebraska;; DeFries, Ruth; University of Maryland;; Dietz, Thomas; Michigan State University;; Dobermann, Achim; University of Nebraska;; Dobson, Andrew; Princeton University;; Janetos, Anthony; Joint Global Change Research Institute;; Levy, Marc; Columbia University;; Nakicenovic, Nebojsa; Vienna University of Technology;; O'Neill,  Brian; International Institute for Applied Systems Analysis;; Norgaard, Richard; University of California at Berkeley;; Petschel-Held, Gerhard; ;; Ojima, Dennis; Colorado State University;; Pingali, Prabhu; FAO;; Watson, Robert; World Bank;; Zurek, Monika; FAO;.
This paper provides an overview of what the Millennium Ecosystem Assessment (MA) calls &amp;#8220;indirect and direct drivers&amp;#8221; of change in ecosystem services at a global level. The MA definition of a driver is any natural or human-induced factor that directly or indirectly causes a change in an ecosystem. A direct driver unequivocally influences ecosystem processes. An indirect driver operates more diffusely by altering one or more direct drivers. Global driving forces are categorized as demographic, economic, sociopolitical, cultural and religious, scientific and technological, and physical and biological. Drivers in all categories other than physical and biological are considered indirect. Important direct drivers include changes in climate,...
Tipo: Peer-Reviewed Reports
Palavras-chave: Ecosystem services; Drivers of change; Direct drivers; Indirect drivers; Demographic drivers; Economic drivers; Sociopolitical drivers; Cultural and religious drivers; Scientific and technological drivers; Physical and biological drivers; Climate change; Plant nutrient use; Land conversion; Diseases; Invasive species.
Ano: 2006

Invasive Species and the Cultural Keystone Species Concept
Provedor de dados: 7
Autores: Simberloff, Daniel; University of Tennessee, Department of Ecology and Evolutionary Biology; dsimberloff@utk.edu.
Tipo: Peer-Reviewed Response
Palavras-chave: Biological invasions; Cultural keystone species; Conservation; Exotic species; Invasive species; Keystone species.
Ano: 2005

Integrating local pastoral knowledge, participatory mapping, and species distribution modeling for risk assessment of invasive rubber vine (Cryptostegia grandiflora) in Ethiopia&amp;#8217;s Afar region
Provedor de dados: 7
Autores: Luizza, Matthew W.; Colorado State University, Natural Resource Ecology Laboratory; mwluizza@rams.colostate.edu; Wakie, Tewodros; Colorado State University, Natural Resource Ecology Laboratory; tewodros.wakie@colostate.edu; Evangelista, Paul H.; Colorado State University, Natural Resource Ecology Laboratory; paul.evangelista@colostate.edu; Jarnevich, Catherine S.; U.S. Geological Survey, Fort Collins Science Center; jarnevichc@usgs.gov.
The threats posed by invasive plants span ecosystems and economies worldwide. Local knowledge of biological invasions has proven beneficial for invasive species research, but to date no work has integrated this knowledge with species distribution modeling for invasion risk assessments. In this study, we integrated pastoral knowledge with Maxent modeling to assess the suitable habitat and potential impacts of invasive Cryptostegia grandiflora Robx. Ex R.Br. (rubber vine) in Ethiopia&amp;#8217;s Afar region. We conducted focus groups with seven villages across the Amibara and Awash-Fentale districts. Pastoral knowledge revealed the growing threat of rubber vine, which to date has received limited attention in Ethiopia, and whose presence in Afar was...
Tipo: Peer-Reviewed Reports
Palavras-chave: Afar region; Citizen science; Cryptostegia grandiflora; Ethiopia; Invasive species; Local ecological knowledge; Maxent; Participatory mapping; Pastoral livelihoods; Risk assessment; Rubber vine; Species distribution modeling.
Ano: 2016

Transient Social&amp;#8211;Ecological Stability: the Effects of Invasive Species and Ecosystem Restoration on Nutrient Management Compromise in Lake Erie
Provedor de dados: 7
Autores: Roy, Eric D.; Department of Food, Agricultural and Biological Engineering, Ohio State University; eroy5@tigers.lsu.edu; Martin, Jay F.; Department of Food, Agricultural and Biological Engineering, Ohio State University; martin.1130@osu.edu; Irwin, Elena G.; Department of Agricultural, Environmental and Development Economics, Ohio State University; irwin.78@osu.edu; Conroy, Joseph D.; Department of Evolution, Ecology and Organismal Biology, Ohio State University; conroy.27@osu.edu; Culver, David A.; Department of Evolution, Ecology and Organismal Biology, Ohio State University; culver.3@osu.edu.
Together, lake ecosystems and local human activity form complex social&amp;#8211;ecological systems (SESs) characterized by feedback loops and discontinuous change. Researchers in diverse fields have suggested that complex systems do not have single stable equilibria in the long term because of inevitable perturbation. During this study, we sought to address the general question of whether or not stable social&amp;#8211;ecological equilibria exist in highly stressed and managed lacustrine systems. Using an integrated human&amp;#8211;biophysical model, we investigated the impacts of a species invasion and ecosystem restoration on SES equilibrium, defined here as a compromise in phosphorus management among opposing stakeholders, in western Lake Erie. Our...
Tipo: Peer-Reviewed Reports
Palavras-chave: Dreissena; Ecosystem services; Invasive species; Lake Erie; Lake eutrophication; Lake management; Perturbation; Phosphorus.
Ano: 2010

Motivating residents to combat invasive species on private lands: social norms and community reciprocity
Provedor de dados: 7
Autores: Niemiec, Rebecca M; Emmett Interdisciplinary Program in Environment and Resources, Stanford University; rniemiec@stanford.edu; Ardoin, Nicole M; Graduate School of Education and Woods Institute for the Environment, Stanford University; nmardoin@stanford.edu; Wharton, Candace B; Hawai&amp;#699;i Community College, Hilo; cbwharto@hawaii.edu; Asner, Gregory P; Department of Global Ecology, Carnegie Institution for Science; gpa@carnegiescience.edu.
Invasive species (IS) threaten biodiversity and ecosystem functioning. To achieve landscape-scale reductions in IS and the associated gains for biodiversity, IS control efforts must be expanded across private lands. Enhancing IS control across private lands requires an understanding of the factors that motivate residents to engage or prohibit residents from engaging in efforts to control IS. Drawing from the collective interest model and literature, we sought to understand how a wide range of interpersonal, intrapersonal, and contextual factors might influence resident action around combating the invasive tree albizia (Falcataria moluccana), in the Puna District of Hawai&amp;#699;i. To do so, we used a cross-sectional survey of 243 residents and elastic...
Tipo: Peer-Reviewed Reports
Palavras-chave: Community-based conservation; Conservation; Environmental behavior; Hawai&amp;#699; I; Invasive species; Private lands.
Ano: 2016

A Framework for Spatial Risk Assessments: Potential Impacts of Nonindigenous Invasive Species on Native Species
Provedor de dados: 7
Autores: Allen, Craig R; USGS  Nebraska Cooperative Fish &amp; Wildlife Research Unit, University of Nebraska; allencr@unl.edu; Johnson, Alan R; Clemson University; alanj@clemson.edu; Parris, Leslie; Clemson University; leslie.parris@us.army.mil.
Many populations of wild animals and plants are declining and face increasing threats from habitat fragmentation and loss as well as exposure to stressors ranging from toxicants to diseases to invasive nonindigenous species. We describe and demonstrate a spatially explicit ecological risk assessment that allows for the incorporation of a broad array of information that may influence the distribution of an invasive species, toxicants, or other stressors, and the incorporation of landscape variables that may influence the spread of a species or substances. The first step in our analyses is to develop species models and quantify spatial overlap between stressor and target organisms. Risk is assessed as the product of spatial overlap and a hazard index based...
Tipo: Peer-Reviewed article
Palavras-chave: Declining species; Invasive species; Nonindigenous species; Risk assessment; Spatial risk.
Ano: 2006

Biological Invasion Risks and the Public Good: an Economic Perspective
Provedor de dados: 7
Autores: Perrings, Charles; University of York; cap8@york.ac.uk; Williamson, Mark; University of York; mw1@york.ac.uk; Barbier, Edward B; University of Wyoming; ebarbier@uwyo.edu; Delfino, Doriana; University of York; dd109@york.ac.uk; Dalmazzone, Silvana; University of Turin; silvana.dalmazzone@unito.it; Shogren, Jason; University of Wyoming; jramses@uwyo.edu; Simmons, Peter; University of York; ps1@york.ac.uk; Watkinson, Andrew; University of East Anglia; A.Watkinson@uea.ac.uk.
We postulate that the causes of the problem of invasive alien species are primarily economic and, as such, require economic solutions. Invasive alien species are of increasing concern for four reasons. First, introductions are increasing sharply, while mechanisms for excluding or eradicating alien species have been either withdrawn or progressively weakened. Both trends are due to the liberalization of and increase in international travel and trade, an economic phenomenon. Second, the costs of invasions are rising rapidly due partly to increasing human population density, and partly to increasing intensity of production in genetically impoverished agricultural systems. Third, biological invasions are associated with a high degree of uncertainty both...
Tipo: Peer-Reviewed Reports
Palavras-chave: Invasive species.
Ano: 2002

Tropical Forest Restoration within Galapagos National Park: Application of a State-transition Model
Provedor de dados: 7
Autores: Wilkinson, S. R.; University of Alberta; sarah.wilkinson@ualberta.ca; Naeth, M. A.; University of Alberta; anne.naeth@ualberta.ca; Schmiegelow, F. K. A.; University of Alberta; Fiona.schmiegelow@ualberta.ca.
Current theory on non-equilibrium communities, thresholds of irreversibility, and ecological resilience suggests the goal of ecological restoration of degraded communities is not to achieve one target, but to reestablish the temporal and spatial diversity inherent in natural ecosystems. Few restoration models, however, address ecological and management issues across the vegetation mosaic of a landscape. Because of a lack of scientific knowledge and funds, restoration practitioners focus instead on site-specific prescriptions and reactive rather than proactive approaches to restoration; this approach often dooms restoration projects to failure. We applied a state-transition model as a decision-making tool to identify and achieve short- and long-term...
Tipo: Peer-Reviewed Reports
Palavras-chave: Ecological resilience; Ecosystem management; Invasive species; Restoration model.
Ano: 2005

Многолетняя динамика цветения микроводорослей в прибрежной зоне Одесского залива (Чёрное море).
Provedor de dados: 13
Autores: Теренько, Л. М.; Теренько, Г. В.
Проанализированы результаты многолетних собственных исследований и проведено сравнение с литературными данными предыдущих лет о временных изменениях «цветений» воды в северо-западной части Чёрного моря, а также видового состава вызывающих их микроводорослей. Мониторинг проводился в 1995 – 2005 гг. ежемесячно на 5 – 7 станциях, расположенных в прибрежной зоне Одесского залива. Показаны некоторые особенности «цветений» в современный период, а также отмечено увеличение числа токсичных видов-возбудителей «цветений». Приведен список токсичных или потенциально токсичных микроводорослей, развивающихся в данной акватории.
Tipo: Journal Contribution
Palavras-chave: «цветение» воды; Эвтрофирование; «красный прилив»; Виды-вселенцы; Токсичные микроводоросли; Чёрное море; Water blooms; Eutrophication; Red tide; Invasive species; Toxic microalgae; Black Sea; «цвітіння» води; Евтрофування; «червоний прилив»; Види-вселенці; Токсичні мікроводорості; Чорне море.
Ano: 2008
URL: http://repository.ibss.org.ua/dspace/handle/99011/814

Differences on allocation of available resources, in growth, reproduction, and survival, in an exotic gastropod of Physidae compared to an endemic one
Provedor de dados: 76
Autores: Núñez,Verónica.
Physa acuta Draparnaud, 1805 is an invasive gastropod that can affect local species. In Argentina, it is widespread and abundant, even in environments inhabited by the native species Stenophysa marmorata Guilding, 1828. Its predominance raises the question whether this could be explained by a more successful energy allocation in functional requirements (growth, reproduction and survival) compared to S. marmorata. This study was aimed at comparing growth rates, as well as survival and fecundity, between both species under laboratory conditions. Individuals born on the same day were grouped in four per aquaria and kept under controlled conditions of food, light, and temperature. Snails were weekly measured (maximum shell length), and growth rates were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fecundity; Invasive species; Longevity; Physa acuta; Stenophysa marmorata.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000300014

Shades of Green (VI).
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
bitstream/item/207322/1/5175.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Pests; Invasive species.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117136

Pets at ecotourism destinations: cute mascot or trojan horse?
Provedor de dados: 5
Autores: Bessa, Eduardo; Blumstein, Daniel T.; Samia, Diogo S. M.; Geffroy, Benjamin.
Alien species are threatening native fauna worldwide and cats and dogs have well-documented deleterious impacts on wildlife. Ecotourism operators often live and raise their pets in natural reserves. Here we discuss how pets add to the list of potential negative impacts of ecotourism and provide recommendations to control or attenuate such impacts.
Tipo: Text
Palavras-chave: Cat; Conservation; Dog; Invasive species; Tourism.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00505/61642/65655.pdf

Modelling benthic invasion by the colonial gastropod Crepidula fornicata and its competition with the bivalve Pecten maximus . 2. Coupling the 0D model of colony-forming species to a connectivity matrix for a realistic distributed simulation of benthic invasion
Provedor de dados: 5
Autores: Menesguen, Alain; Hachet, Alois; Gregoris, Thomas.
The anthropogenic introduction in U.K. waters of the north-American marine gastropod Crepidula fornicata (Linné, 1758), commonly called slipper limpet, and its consecutive spreading has led in less than a century to the invasion of a part of benthic grounds along the North-European coasts. Competition for space has hampered the maintenance of the native scallop Pecten maximus, whereas dredge clogging has drastically limited scallop fishing, especially in the Western English Channel. In order to assess the possible future distribution and abundance of both species (Crepidula and Pecten), an original model of slipper limpet chains joined to a simple year-class model of the scallop (Ménesguen and Grégoris, 2017) has been coupled to a connectivity matrix...
Tipo: Text
Palavras-chave: Slipper limpet; Invasive species; Colony model; Connectivity matrix eigenvectors; Scallop; Competition for space.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00431/54231/57333.pdf

Modelling benthic invasion by the colonial gastropod Crepidula fornicata and its competition with the bivalve Pecten maximus . 1. A new 0D model for population dynamics of colony-forming species
Provedor de dados: 5
Autores: Menesguen, Alain; Gregoris, Thomas.
The north-American marine gastropod Crepidula fornicata (Linné 1758), commonly called slipper limpet, has been introduced accidentally in Great Britain, along with American oysters (Crassostrea virginica) at the end of the 19th century. Its spreading, enhanced by oyster transport and international shipping, turned into invasion of a lot of benthic grounds along the North-European coasts. When local conditions are favorable to larval confinement and adult growth, the invasion by very dense populations may deeply change initially sandy or muddy benthic communities into similar “slipper limpet communities”. Competition for space eliminates several species of native infauna, and hampers the survival of some epibenthic bivalves such as the scallop Pecten...
Tipo: Text
Palavras-chave: Crepidula fornicata; Invasive species; Benthic gastropod; Colony model; Matching matrix; Pecten maximus; Competition; Population dynamics; Limit cycle.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00415/52601/53491.pdf

Effect of an invasive mollusc, American slipper limpet Crepidula fornicata, on habitat suitability for juvenile common sole Solea solea in the Bay of Biscay
Provedor de dados: 5
Autores: Le Pape, Olivier; Guerault, Daniel; Desaunay, Yves.
This study describes the effect of an invasive mollusc, the slipper limpet Crepidula fornicata, on the distribution and abundance of young-of-the-year sole Solea solea in coastal nursery areas, based on beam-trawl surveys in the Bay of Biscay (France) over a 3 yr period (2000 to 2002). As habitat suitability for juvenile sole varies according to bathymetry and sediment structure, these factors and the density of the slipper limpet were used as descriptors in generalised linear models of habitat suitability to characterise the distribution of juvenile sole. The models were based on a delta distribution, coupling a binomial model testing for the presence of juvenile sole with a log-normal distribution for density when juveniles were known to be present....
Tipo: Text
Palavras-chave: Solea solea; Nursery ground; Habitat suitability models; Crepidula fornicata; Invasive species; Bay of Biscay.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00000/10854/7579.pdf

Global change and climate-driven invasion of the Pacific oyster (Crassostrea gigas) along European coasts: a bioenergetics modelling approach
Provedor de dados: 5
Autores: Thomas, Yoann; Pouvreau, Stephane; Alunno-bruscia, Marianne; Barille, Laurent; Gohin, Francis; Bryere, Philippe; Gernez, Pierre.
Aim  The spread of non-indigenous species in marine ecosystems world-wide is one of today's most serious environmental concerns. Using mechanistic modelling, we investigated how global change relates to the invasion of European coasts by a non-native marine invertebrate, the Pacific oyster Crassostrea gigas.  Location Bourgneuf Bay on the French Atlantic coast was considered as the northern boundary of C. gigas expansion at the time of its introduction to Europe in the 1970s. From this latitudinal reference, variations in the spatial distribution of the C. gigas reproductive niche were analysed along the north-western European coast from Gibraltar to Norway.  Methods The effects of environmental variations on C. gigas physiology and phenology were studied...
Tipo: Text
Palavras-chave: Biogeographical range expansion; Crassostrea gigas; DEB model; European coasts; Functional traits; Global change; Individual-based model; Invasive species; Remote-sensing.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00287/39828/38459.pdf

The invasive ctenophore Mnemiopsis leidyi A. Agassiz, 1865 along the English Channel and the North Sea French coasts: another introduction pathway in northern European waters?
Provedor de dados: 5
Autores: Antajan, Elvire; Bastian, Thomas; Raud, Thomas; Brylinski, Jean-michel; Hoffman, Stefan; Breton, Gerard; Cornille, Vincent; Delegrange, Alice; Vincent, Dorothee.
The presence of Mnemiopsis leidyi A. Agassiz, 1865 along the French coasts of the Eastern English Channel and the North Sea (EEC-NS) was established via morphological observation and molecular evidence. The earliest records were from surveys carried out in autumn 2005 in Le Havre harbour (Bay of Seine, EEC) and coincided with the historical introduction of the species in other Northern European waters. Since 2009, the species has also been frequently observed along the French coast of the North Sea. Results indicate M. leidyi has established a selfsustaining population in the Bay of Seine, which may act as a source population for northern European harbours via commercial shipping.
Tipo: Text
Palavras-chave: Ctenophore; Invasive species; Mnemiopsis leidyi.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00197/30861/29229.pdf

Ocean current connectivity propelling the secondary spread of a marine invasive comb jelly across western Eurasia
Provedor de dados: 5
Autores: Jaspers, Cornelia; Huwer, Bastian; Antajan, Elvire; Hosia, Aino; Hinrichsen, Hans-harald; Biastoch, Arne; Angel, Dror; Asmus, Ragnhild; Augustin, Christina; Bagheri, Siamak; Beggs, Steven E.; Balsby, Thorsten J. S.; Boersma, Maarten; Bonnet, Delphine; Christensen, Jens T.; Daenhardt, Andreas; Delpy, Floriane; Falkenhaug, Tone; Finenko, Galina; Fleming, Nicholas E. C.; Fuentes, Veronica; Galil, Bella; Gittenberger, Arjan; Griffin, Donal C.; Haslob, Holger; Javidpour, Jamileh; Kamburska, Lyudmila; Kube, Sandra; Langenberg, Victor T.; Lehtiniemi, Maiju; Lombard, Fabien; Malzahn, Arne; Marambio, Macarena; Mihneva, Veselina; Moller, Lene Friis; Niermann, Ulrich; Okyar, Melek Isinibilir; Ozdemir, Zekiye Birinci; Pitois, Sophie; Reusch, Thorsten B. H.; Robbens, Johan; Stefanova, Kremena; Thibault, Delphine; Van Der Veer, Henk W.; Vansteenbrugge, Lies; Van Walraven, Lodewijk; Wozniczka, Adam.
Aim Invasive species are of increasing global concern. Nevertheless, the mechanisms driving further distribution after the initial establishment of non‐native species remain largely unresolved, especially in marine systems. Ocean currents can be a major driver governing range occupancy, but this has not been accounted for in most invasion ecology studies so far. We investigate how well initial establishment areas are interconnected to later occupancy regions to test for the potential role of ocean currents driving secondary spread dynamics in order to infer invasion corridors and the source–sink dynamics of a non‐native holoplanktonic biological probe species on a continental scale. Location Western Eurasia. Time period 1980s–2016. Major taxa studied ‘Comb...
Tipo: Text
Palavras-chave: Biological invasions; Gelatinous zooplankton; Invasion corridors; Invasive species; Jellyfish; Marine connectivity; Mnemiopsis leidyi; Range expansion; Source populations; Source-sink dynamics.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00440/55133/56595.pdf

Restriction des habitats de nourriceries par les espèces invasives et/ou proliférantes : vasières à Haploops et fonds à crépidules
Provedor de dados: 5
Autores: Desaunay, Yves; Martin, Jocelyne; Lobry, Jeremy; Laffargue, Pascal.
L'étude réalise un premier inventaire du peuplement halieutique et du rôle écologique d'un habitat original, : les vasières consolidées à Haploops. Haploops est un petit crustacé amphipode qui élabore des tubes souples et la concentration de ces tubes dans ces zones est telle que la pratique du chalutage y est très difficile. Situé dans la partie externe de la baie de la Vilaine, ce faciès couvre plus de 100 km2. Deux types de chaluts ont été adaptés à l'échantillonnage de ces fonds encombrés (chalut à perche String et chalut à panneaux avec grille ventrale) et utilisés au cours de trois campagnes du navire de recherche Gwen Drez. Une marée expérimentale sur le Marika, navire de pêche professionnel, a été réalisée pour apprécier l'intérêt commercial du...
Tipo: Text
Palavras-chave: Invasive species; Solea solea; Bourgneuf bay Crepidula Brittany Vilaine bay Commercial species Nurseries Habitat Juveniles Fishes Benthos Sampling Haploops Amphipods Mudflat Ecology Halieutic population.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/rapport-2284.pdf

Recent expansion of the oriental shrimp Palaemon macrodactylus (Crustacea: Decapoda) on the western coasts of France
Provedor de dados: 5
Autores: Lavesque, Nicolas; Bachelet, Guy; Beguer, Melanie; Girardin, Michel; Lepage, Mario; Blanchet, Hugues; Sorbe, Jean-claude; Moderan, Julien; Sauriau, Pierre-guy; Auby, Isabelle.
The invasive oriental shrimp Palaemon macrodactylus Rathbun, 1902 has considerably extended its distribution in transitional waters along the Atlantic and Channel coasts of France during the period 2007-2010. The most probable method of a primary introduction of this species is ballast waters, but passive transport by water currents is also a possible mechanism of colonization (secondary introductions). Palaemon macrodactylus is a powerful invader of transitional waters and these new populations should be monitored in the future to assess any consequences to native species.
Tipo: Text
Palavras-chave: Palaemon macrodactylus; Palaemonidae; Invasive species; Western France; Transitional waters.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00181/29213/27622.pdf

Invasion by the Alien Tree Prunus serotina Alters Ecosystem Functions in a Temperate Deciduous Forest
Provedor de dados: 5
Autores: Aerts, Raf; Ewald, Michael; Nicolas, Manuel; Piat, Jerome; Skowronek, Sandra; Lenoir, Jonathan; Hattab, Tarek; Garzon-lopez, Carol X.; Feilhauer, Hannes; Schmidtlein, Sebastian; Rocchini, Duccio; Decocq, Guillaume; Somers, Ben; Van De Kerchove, Ruben; Denef, Karolien; Honnay, Olivier.
Alien invasive species can affect large areas, often with wide-ranging impacts on ecosystem structure, function, and services. Prunus serotina is a widespread invader of European temperate forests, where it tends to form homogeneous stands and limits recruitment of indigenous trees. We hypotesized that invasion by P. serotina would be reflected in the nutrient contents of the native species' leaves and in the respiration of invaded plots as efficient resource uptake and changes in nutrient cycling by P. serotina probably underly its aggressive invasiveness. We combined data from 48 field plots in the forest of Compiegne, France, and data from an experiment using 96 microcosms derived from those field plots. We used general linear models to separate effects...
Tipo: Text
Palavras-chave: American black cherry; Biological invasion; Biogeochemical cycles; Canopy foliar nutrients; Heterotrophic respiration; Litter; Exotic species; Invasive species.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00398/50981/51739.pdf

The presence of Melinna palmata (Annelida : Polychaeta) and Ensis directus (Mollusca : Bivalvia) related to sedimentary changes in the Bay of Seine (English Channel, France)
Provedor de dados: 5
Autores: Dauvin, J; Ruellet, T; Thiebaut, E; Gentil, F; Desroy, Nicolas; Janson, A; Duhamel, S; Jourde, J; Simon, S.
Since late 1990s the annelid polychaete Melinna palmata and the mollusc bivalve Ensis directus have been collected in the eastern part of the Bay of Seine (English Channel), indicating changes in the benthic communities. Melinna palmata was never collected prior to 2002, whereas it was reported in the muddy fine sands of the western part of the Channel, along the French (e.g. Bay of Cherbourg) and southern UK (e.g. Southampton Waters) coasts. Ensis directus was first reported in 1998 and now appears to be well implanted, given the abundant population collected in 2006. The colonization of Melina palmata seems to be a consequence of recent increase of the fine sediment in the eastern part of the Bay, while that of the invasive Ensis directus seems more...
Tipo: Text
Palavras-chave: Invasive species; Environmental disturbances; New records; Range expansion; English Channel; Bay of Seine; Ensis directus; Melinna palmata.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3567.pdf

Isolation of 12 microsatellite markers following a pyrosequencing procedure and cross-priming in two invasive cryptic species, Alexandrium catenella (group IV) and A. tamarense (group III) (Dinophyceae)
Provedor de dados: 5
Autores: Laporte, Martin; Shao, Zhaojun; Berrebi, Patrick; Laabir, Mohamed; Abadie, Eric; Faivre, Nicolas; Rieuvilleneuve, Fabien; Masseret, Estelle.
Alexandrium catenella (group IV) and Alexandrium tamarense (group III) (Dinophyceae) are two cryptic invasive phytoplankton species belonging to the A. tamarense species complex. Their worldwide spread is favored by the human activities, transportation and climate change. In order to describe their diversity in the Mediterranean Sea and understand their settlements and maintenances in this area, new microsatellite markers were developed based on Thau lagoon (France) samples of A. catenella and A. tamarense strains. In this study twelve new microsatellite markers are proposed. Five of these microsatellite markers show amplifications on A. tamarense and ten on A. catenella. Three of these 12 microsatellite markers allowed amplifications on both cryptic...
Tipo: Text
Palavras-chave: Invasive species; Phytoplankton; Alexandrium; Dinophyceae; Microsatellite markers; Biogeography.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00189/30026/29398.pdf

Recurrent winter observations of Mnemiopsis leidyi swarms in the Southern North Sea
Provedor de dados: 5
Autores: Antajan, Elvire; Loots, Christophe; Travers-trolet, Morgane; Vaz, Sandrine.
Tipo: Text
Palavras-chave: Ctenophore; Invasive species; Mnemiopsis leidyi; North Sea.
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00259/37007/35506.pdf

Population genomics shed light on the demographic and adaptive histories of European invasion in the Pacific oyster, Crassostrea gigas
Provedor de dados: 5
Autores: Rohfritsch, Audrey; Bierne, Nicolas; Boudry, Pierre; Heurtebise, Serge; Cornette, Florence; Lapegue, Sylvie.
Crassostrea gigas originated from the Pacific coast of Asia, but was introduced into several European countries in the early 1970s. Natural populations have now spread across the length of the western seaboard of Europe. To elucidate the demographic and selective processes at play during this rapid expansion, genome-scan analysis was performed on different populations. High diversities and low differentiation were observed overall, but significant genetic differentiation was found among newly established populations and between the newly established northern group and a nearly panmictic group composed of southern European populations and a population from Japan. Loss of genetic diversity was also seen in the north, likely caused by founder events during...
Tipo: Text
Palavras-chave: AFLPs; Crassostrea gigas; Genome scan; Invasive species; Microsatellites; SNPs.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00149/25977/24070.pdf

First report of the invasive jellyfish Gonionemus vertens A. Agassiz, 1862 in the Berre Lagoon, southeast France
Provedor de dados: 5
Autores: Marchessaux, Guillaume; Gadreaud, Justine; Martin-garin, Bertrand; Thiery, Alain; Ourgaud, Melanie; Belloni, Bruno; Thibault, Delphine.
The hydromedusa Gonionemus vertens A. Agassiz, 1862 was first detected in the Berre Lagoon, south of France, in July 2016. Early June 2017, following an early rise in temperature, much higher numbers of specimens were reported leading to several beach goers being stung and one going into anaphylactic shock. Effort to rehabilitate this highly anthropogenically altered lagoon has led to the redevelopment of the Zostera meadows, which might be favoring the clinging jellyfish. Developmental aberrations of specimens were noted, which could be linked to the remaining presence of chemicals from the industrial development period. Impact of this predator species on the functioning of the lagoon ecosystem should also be studied.
Tipo: Text
Palavras-chave: Hydromedusae; Mediterranean lagoon; Occurrence; Invasive species; Human's health impacts.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00422/53346/74874.pdf

Dynamique spatiale et interannuelle des communautés mésozooplanctoniques en Manche Orientale en lien avec l’introduction récente d’une espèce non-indigène : Mnemiopsis leidyi
Provedor de dados: 5
Autores: Gravier, Nathan.
In the seas of southern Europe, Mnemiopsis leidyi is responsible for invasive events with worrying ecological consequences. Since 2005, this native of the east coast of the Americas is regularly observed in the English Channel in the Bay of Seine. In order to find out whether changes have taken place in the distribution of M. leidyi in the English Channel since the first reports made before 2014 and to identify the environmental conditions favourable to his presence, hydrological data and Channel Ground Fish Survey from 2014 to 2015 were analyzed. This confirmed that M. leidyi is well established in the Bay of Seine (naturalized species) but does not extend outside this area and therefore cannot be considered an invasive species for that region. The...
Tipo: Text
Palavras-chave: Mnemiopsis leidyi; Espèce exotique envahissante; Manche; Mésozooplancton; Mnemiopsis leidyi; Invasive species; English Channel; Mesozooplankton.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00504/61551/65459.pdf

Standardization proposal for the mapping of Caulerpa taxifolia expansion in the Mediterranean sea
Provedor de dados: 5
Autores: De Vaugelas, Jean; Meinesz, Alexandre; Antolic, Boris; Ballesteros, Enrique; Belsher, Thomas; Cassar, Nicolas; Ceccherelli, Giulia; Cinelli, Francesco; Cottalorda, Jean-michel; Orestano, Carla Fradà; Grau, Antoni; Jaklin, Andrej; Morucci, Carlo; Relini, Marco; Sandulli, Roberto; Span, Ante; Tripaldi, Giuseppe; Van Klaveren, Patrick; Zavodnik, Nevenka; Zuljevic, Ante.
Fourteen years after the first observation of Caulerpa taxifolia (Valh) C. Agardh in the northwestern Mediterranean Sea, this green alga of tropical origin is now present in five countries (Spain, France, Monaco, Italy and Croatia). By the end of 1997, more than 46 km(2), at depths of between 0 and 50 m, were found to be affected by this expansion. A standardization of the cartographic procedure is proposed here. Such a standardization is necessary to compare maps produced by various organizations from different countries. For a given independent station, it is based on the definition of three levels of colonization:Level I refers to a station where one or several colonies less than 100 m apart cover a total surface area inferior to 1000 m(2):Level II...
Tipo: Text
Palavras-chave: Mediterranean Sea; Invasive species; Standardization; Caulerpa taxifolia; Cartography; Mer Méditerranée; Espèces envahissantes; Standardisation; Caulerpa taxifolia; Mediterranean Seacartographie.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/publication-837.pdf

Interactions between a natural food web, shellfish farming and exotic species: The case of the Bay of Mont Saint Michel (France)
Provedor de dados: 5
Autores: Arbach Leloup, F.; Desroy, Nicolas; Le Mao, Patrick; Pauly, D.; Le Pape, Olivier.
To ensure sustainable uses of the coastal zone, an integrated ecosystemic approach and ecosystem models are required to frame ecological processes and evaluate environmental impacts. Here, a mass-balance trophic (Ecopath) model of the Mont Saint Michel Bay (MSMB) was developed, to analyze the bay's functioning as an ecosystem. This bay, intensively exploited by fishing and for shellfish farming, is also suffering from the proliferation of the gastropod Crepidula fornicata, an exotic species.  The MSMB model has 18 compartments, from the primary producers to top predators, and emphasizes the large biomass of filter feeders. The model identified the MSMB as a highly productive ecosystem controlled largely from the bottom-up, and strongly impacted by huge...
Tipo: Text
Palavras-chave: Mont Saint Michel Bay; Crepidula fornicata; Invasive species; Shellfish farming; Trophic model; Ecopath.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2007/publication-2605.pdf

Distributions of Indo-Pacific lionfishes Pterois spp. in their native ranges: implications for the Atlantic invasion
Provedor de dados: 5
Autores: Kulbicki, Michel; Beets, James; Chabanet, Pascale; Cure, Katherine; Darling, Emily; Floeter, Sergio R.; Galzin, Rene; Green, Alison; Harmelin-vivien, Mireille; Hixon, Mark; Letourneur, Yves; De Loma, Thierry Lison; Mcclanahan, Tim; Mcilwain, Jennifer; Moutham, Gerard; Myers, Robert; O'Leary, Jennifer K.; Planes, Serge; Vigliola, Laurent; Wantiez, Laurent.
Lionfish (Pterois volitans and P. miles) have become a major concern in the western Attantie and Caribbean since their introduction in the 1980s. Invasive lionfish can reach very high population densities on coral reefs in their invaded range, yet there are few data from their native range in the Indo-Pacific for comparison. We compiled data on the geographical distribution and density of Indo-Pacific lionfishes in their native ranges from published and unpublished underwater visual censuses and field collections. We found that lionfish in their native Indo-Pacific range are unevenly distributed, with higher densities in the Indian Ocean than in the Pacific. Lionfish densities increase significantly with increasing latitude, and are significantly higher in...
Tipo: Text
Palavras-chave: Pterois; Indo-Pacific; Ecology; Visual census; Larvae; Invasive species.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00207/31781/30193.pdf

Reduction of flatfish habitat as a consequence of the proliferation of an invasive mollusc
Provedor de dados: 5
Autores: Kostecki, Caroline; Rochette, S.; Girardin, R.; Blanchard, Michel; Desroy, Nicolas; Le Pape, Olivier.
Coastal bays provide habitats for juveniles and adults of many marine species. Mont Saint-Michel Bay (MSMB, France) hosts a highly diversified fish community and constitutes one of the most important nursery grounds for many commercially exploited marine species, such as sea bass, flatfish, clupeids and rays in the English Channel. Besides, MSMB also suffers from the massive invasion of an exotic mollusc, the American slipper-limpet (Crepidula fornicata, L). This species arrived four decades ago and now represents the main filter-feeder biomass in the bay (150 Mt), an order of magnitude larger than local farmed and natural shellfishes. Recent analyses underlined the impact of this small gastropod on the trophic structure of this bay and its negative...
Tipo: Text
Palavras-chave: Spatial competition; Flatfish habitat; Crepidula fornicata; Invasive species; Mont Saint-Michel Bay.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00035/14641/11990.pdf

First records of the red lionfish (Pterois volitans) in Martinique, French West Indies: monitoring invasion status through visual surveys
Provedor de dados: 5
Autores: Trégarot, Ewan; Fumaroli, Marine; Arqué, Alexandre; Helli, Claire; Maréchal, Jean-philippe.
The red lionfish (Pterois volitans) was first recorded in Martinique on 1 February 2011. Three years later, despite control measures to prevent the increase of lionfish population densities, the species is now well established. Maximum density has reached 1320 individuals ha−1 in some locations and the maximum fish size of 41 cm total length has been observed. A monitoring program was initiated by the Marine Institute of Martinique (OMMM) in 2011 to monitor the invasion and adjust local control efforts. Our results highlight how fast lionfish have been able to invade new littoral areas, especially hard bottom habitats. It took two years for them to completely colonize the west coast of Martinique, despite increasing capture efforts. It is expected that...
Tipo: Text
Palavras-chave: Invasive species; Pterois volitans; Pterois miles; Martinique; Lesser Antilles; Marine invasion.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00667/77911/80094.pdf

Acquisition de données sur l'expansion de Caulerpa taxifolia et Caulerpa racemosa en rade d'Hyères et en rade de Toulon (France)
Provedor de dados: 5
Autores: Belsher, Thomas; Lunven, Michel; Le Gall, Erwan; Caisey, Xavier; Dugornay, Olivier; Mingant, Christian.
The oceanographic cruise Califa 2000, as the previous cruise, which concerned the "Parc National de Port-Cros", had for its principal objective to furnish some elements susceptible to help in the control of Caulerpa taxifolia expansion and in the protection of particularly sensitive areas (national parks, patrimonial sectors, regions of socio-economic importance). The cruise lasted from the 4th to the 21st of September 2000 in the rade d'Hyeres, Porquerolles island included, and the rade of Toulon. This detailed prospection gives a location of C. taxifolia and C. racemosa, a new invasive seaweed. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Tipo: Text
Palavras-chave: Rade de Toulon; Rade d' Hyeres; Cartography; Caulerpa racemos; Caulerpa taxifolia; Invasive species; Rade de Toulon; Rade d'Hyères; Cartographie; Caulerpa racemosa; Caulerpa taxifolia; Espèces invasives.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-520.pdf

Invasive north american Beaver (Castor canadensis): the distribution of mitochondrial variation across the archipelago of Tierra del Fuego
Provedor de dados: 81
Autores: Fasanella,Mariana; Poljak,Sebastián; Lizarralde,Marta S.
In 1946 twenty-five pairs of Castor canadensis were introduced into the Isla Grande of Tierra del Fuego (Argentina). Thanks both to environmental conditions favorable for colonization and an absence of effective control measures, today the estimated abundance is about 100 000 individuals. We have conducted molecular analysis of beavers from three areas of the Archipelago of Tierra del Fuego, in order to characterize the genetic structure of the invasive population. Our results from AMOVA (Fst= 0.104, p &lt; 0.001) suggest that geographical barriers and large distances could limit gene flow among the populations. In the Tierra del Fuego National Park subpopulation, we found a positive and significant autocorrelation out to 800 m (r = 0.193, p = 0.003) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: D-loop; Invasive species; Spatial genetic structure; Tierra del Fuego.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832010000100005

The European rabbit (Oryctolagus cuniculus L.) as seed disperser of the invasive opium poppy (Papaver somniferum L.) in Robinson Crusoe island, Chile
Provedor de dados: 81
Autores: Fernández,Alfonso; Sáiz,Francisco.
We investigated whether introduced European rabbit on Robinson Crusoe Island, Chile, has the potential to spread the seeds of the exotic Papaver somniferum (opium poppy) via endozoochory. A total of 1320 rabbit droppings were collected during early autumn in the study area and analyzed in laboratory with binocular magnifying glass. Seeds from six different species were found in the droppings: Papaver somniferum (Papaveraceae), Centaurea melitensis (Asteraceae), Amaranthus sp. (Amarantaceae), Melilotus indicus (Fabaceae), Rumex acetosella (Polygonaceae), and one unidentified species. Poppy seeds were dominant. Most seeds (82%) were destroyed during ingestion, but some of the intact seeds found in pellets remained viable. Germination rate of ingested seeds...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Endozoochory; Gut passage; Invasive species; Seed dispersal.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832007000100003

New Ceratocystis species associated with rapid death of Metrosideros polymorpha in Hawai`i
Provedor de dados: 16
Autores: Barnes, I.; Fourie, A.; Wingfield, M.J.; Harrington, T.C.; McNew , D.L.; Sugiyama, L.S.; Luiz, B.C.; Heller, W.P.; Keith, L.M.
The native ˋōhiˋa lehua (Metrosideros polymorpha) has cultural, biological and ecological significance to Hawai`i, but it is seriously threatened by a disease commonly referred to as rapid ˋōhiˋa death (ROD). Preliminary investigations showed that a Ceratocystis species similar to C. fimbriata s.lat. was the cause of the disease. In this study, we used a combination of the phylogenetic, morphological and biological species concepts, as well as pathogenicity tests and microsatellite analyses, to characterise isolates collected from diseased ˋōhiˋa trees across Hawai`i Island. Two distinct lineages, representing new species of Ceratocystis, were evident based on multigene phylogenetic analyses. These are described here as C. lukuohia and C. huliohia....
Tipo: Article / Letter to the editor
Palavras-chave: Ceratocystidaceae; Fungal barcoding genes; Invasive species; ITS types; New taxa.
Ano: 2018
URL: http://www.repository.naturalis.nl/record/646630

Bucculatrix ainsliella Murtfeldt, a new North American invader already widespread on northern red oaks (Quercus rubra) in Western Europe (Bucculatricidae)
Provedor de dados: 16
Autores: Nieukerken, E.J. van; Doorenweerd, C.; Ellis, W.N.; Huisman, K.J.; Koster, J.C.; Mey, W.; Muus, T.S.T.; Schreurs, A.
Bucculatrix ainsliella Murtfeldt, 1905 is for the first time reported from Europe: the Netherlands, Belgium, and adjacent Germany. DNA barcodes confirm its identity. It is the first North American lepidopteranspecies feeding on northern red oak Quercus rubra ever found in Europe, and only the second North American oak-feeding insect found in Europe. The species has regularly been found in the Netherlands and northern Belgium since 2006, and in 2011 also in Nordrhein-Westfalen in Germany, adjacent to the Dutch border, but the earliest records are from the Netherlands, Amersfoort in 1989 and 1990. Early stages, leafmines, and the adult are described, illustrated, and diagnosed against oak-feeding Bucculatrix ulmella Zeller, 1848 and other similar species....
Tipo: Article / Letter to the editor
Palavras-chave: Bucculatrix ainsliella; Invasive species; Northern red oaks; Quercus rubra; Bucculatricidae; The Netherlands; Belgium; Germany; 42.75; 42.56.
Ano: 2012
URL: http://www.repository.naturalis.nl/record/433335

Antispila oinophylla new species (Lepidoptera, Heliozelidae), a new North American grapevine leafminer invading Italian vineyards: taxonomy, DNA barcodes and life cycle
Provedor de dados: 16
Autores: Nieukerken, E. van; Wagner, D.; Baldessari, M.; Mazzon, L.; Angeli, G.; Girolami, V.; Duso, C.; Doorenweerd, C.
A grapevine leafminer Antispila oinophylla van Nieukerken &amp; Wagner, sp. n., is described both from eastern North America (type locality: Georgia) and as a new important invader in North Italian vineyards (Trentino and Veneto Region) since 2006. The species is closely related to, and previously confused with A. ampelopsifoliella Chambers, 1874, a species feeding on Virginia creeper Parthenocissus quinquefolia (L.) Planchon., and both are placed in an informal A. ampelopsifoliella group. Wing pattern, genitalia, and DNA barcode data all confirm the conspecificity of native North American populations and Italian populations. COI barcodes differ by only 0–1.23%, indicating that the Italian populations are recently established from eastern North America....
Tipo: Article / Letter to the editor
Palavras-chave: Invasive species; New species; Vitaceae; Viticulture; COI; Leafmines; Venation; Genitalia; Holocacista rivillei; 42.75.
Ano: 2012
URL: http://www.repository.naturalis.nl/record/411010

Role of behaviour in biological invasions and species distributions; lessons from interactions between the invasive Gammarus pulex and the native G. duebeni (Crustacea: Amphipoda)
Provedor de dados: 16
Autores: Dick, J.T.A.
In attempting to understand the distributions of both introduced species and the native species on which they impact, there is a growing trend to integrate studies of behaviour with more traditional life history/ecological approaches. The question of what mechanisms drive the displacement of the freshwater amphipod Gammarus duebeni by the often introduced G. pulex is presented as a case study. Patterns of displacement are well documented throughout Europe, but the speed and direction of displacement between these species can be varied. From early studies proposing interspecific competition as causal in these patterns, I review research progress to date. I show there has been no evidence for interspecific competition operating, other than the field patterns...
Tipo: Article / Letter to the editor
Palavras-chave: Amphipods; Animal behaviour; Gammarus; Interspecific competition; Intraguild predation; Invasive species; Species distributions; 42.74.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/280476

A revision of Jatropha (Euphorbiaceae) in Malesia
Provedor de dados: 16
Autores: Welzen, P.C. van; Sweet, F.S.T.; Fernández-Casas, F.J.
Jatropha, a widespread, species rich genus, ranges from the Americas and Caribbean to Africa and India. In Malesia five species occur, all of which were introduced and originated in Central and South America. The five species are revised and an identification key, nomenclature, descriptions, distributions, ecology, vernacular names, uses and notes are provided. Special attention is given to the uses of J. curcas, because it is steadily gaining popularity as a potential biofuel plant and, because of that, is being cultivated more often.
Tipo: Article / Letter to the editor
Palavras-chave: Euphorbiaceae; Introduced species; Invasive species; Jatropha; Malesia; Revision.
Ano: 2017
URL: http://www.repository.naturalis.nl/record/627810

Non-indigenous marine and estuarine species in The Netherlands
Provedor de dados: 16
Autores: Wolff, W.J.
An overview is presented of non-indigenous marine and estuarine plant and animal species recorded from The Netherlands. In this list both exotic species from outside NW Europe and non-indigenous species from elsewhere in NW Europe are enumerated. Species that have been suggested to be non-indigenous in The Netherlands but for which insufficient evidence could be found are discussed shortly as well. The list is based mainly on literature data supplemented by own observations of the author. At least 99 plant and animal species have been introduced from elsewhere in the world. Another 13 species have been introduced from other parts of NW Europe. The third category of dubious non-indigenous species enumerates 37 species. The list is preceded by an...
Tipo: Article / Letter to the editor
Palavras-chave: Non-indigenous species; Introduced species; Exotic species; Alien species; Invasive species; The Netherlands; North Sea; Wadden Sea; Oosterschelde estuary; Estuaries; 42.94.
Ano: 2005
URL: http://www.repository.naturalis.nl/record/210096

Unforeseen importance of historical collections as baselines to determine biotic change of coral reefs: the Saba Bank case
Provedor de dados: 16
Autores: Hoeksema, B.W.; Land, J. van der; Meij, S.E.T. van der; Ofwegen, L.P. van; Reijnen, B.T.; Soest, R.W.M. van; Voogd, N.J. de.
Botanical and zoological collections may serve as archives for historical ecological research on the effects of global change and human impact on coral reef biota. Museum collections may harbour old specimens of reef-dwelling species that have become locally extinct. Such collections also help to determine whether early records of invasive species can be obtained from times when they were not yet recognized as such. A case study (2006) involving Saba Bank, Caribbean Netherlands (former Netherlands Antilles), suggests that the coral reef fauna here may have become impoverished when compared with data obtained during an earlier expedition in 1972. However, the 1972 sampling may have been incomplete, as it was performed by professional divers who were not...
Tipo: Article / Letter to the editor
Palavras-chave: Biodiversity; Global change biology; Historical ecology; Invasive species; Local extinctions; Natural history museums.
Ano: 2011
URL: http://www.repository.naturalis.nl/record/409031

Risks and management of non-native Impatiens species in the Netherlands
Provedor de dados: 16
Autores: Matthews, J.; Beringen, R.; Boer, E.; Duistermaat, H.; Odé, B.; Valkenburg, J.L.C.H. van; Velde, G. van der; Leuven, R.S.E.W.
Tipo: Report
Palavras-chave: Dispersion; Ecological effects; Invasive species; Management options; Public health; Socio-economic impacts; 42.54; 42.44.
Ano: 2015
URL: http://www.repository.naturalis.nl/record/579645

Invasions by Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) in the Western Hemisphere: implications for South America
Provedor de dados: 82
Autores: Koch,Robert L.; Venette,Robert C.; Hutchison,William D.
The multicolored Asian lady beetle, Harmonia axyridis (Pallas), native to Asia, has recently been detected in South America after successfully invading North America and Europe. This coccinellid is a voracious predator; therefore, it is popular and effective in biological control. Unfortunately, H. axyridis also has associated adverse impacts (i.e., as a household pest, pest of fruit production, and threat to non-target organisms). To predict the potential geographic extent of impacts of H. axyridis in South America we review the history of its invasion in the Western Hemisphere and address various factors critical to the future invasion (i.e., arrival, establishment, and spread) of new areas of South America. The likelihood of continued introductions...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Invasive species; Exotic species; Climate matching; Non-target impact.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000400001

First report of the red palm mite, Raoiella indica Hirst (Acari: Tenuipalpidae), in Brazil
Provedor de dados: 82
Autores: Navia,D; Marsaro Jr,AL; Silva,FR da; Gondim Jr,MGC; Moraes,GJ de.
The presence of the red palm mite, Raoiella indica Hirst, is reported for the first time in Brazil. This invasive mite was found in July 2009 infesting coconut palms and bananas in urban areas of Boa Vista, State of Roraima, in northern Brazil. Comments on the possible pathways of R. indica into the country, present and potential impact of its introduction and mitigating measures to prevent or to delay the mite spread in Brazil are presented.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Plant protection; Invasive species; Coconut; Banana.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000300018

Colorful invasion in permissive Neotropical ecosystems: establishment of ornamental non-native poeciliids of the genera Poecilia/Xiphophorus (Cyprinodontiformes: Poeciliidae) and management alternatives
Provedor de dados: 83
Autores: Magalhães,André Lincoln Barroso; Jacobi,Claudia Maria.
ABSTRACT Headwater creeks are environments susceptible to invasion by non-native fishes. We evaluated the reproduction of 22 populations of the non-native livebearers guppy Poecilia reticulata, black molly Poecilia sphenops, Yucatan molly Poecilia velifera, green swordtail Xiphophorus hellerii, southern platyfish Xiphophorus maculatus, and variable platyfish Xiphophorus variatus during an annual cycle in five headwater creeks located in the largest South American ornamental aquaculture center, Paraíba do Sul River basin, southeastern Brazil. With few exceptions, females of most species were found reproducing (stages 2, 3, 4) all year round in the creeks and gravid females of all species showed small sizes indicating stunting. Juveniles were frequent in all...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Invasive species; Livebearers; Reproduction; Stream.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000100204

Nocturnal and diurnal activity of armored suckermouth catfish (Loricariidae: Pterygoplichthys) associated with wintering Florida manatees (Trichechus manatus latirostris)
Provedor de dados: 83
Autores: Nico,Leo G.
Several Pterygoplichthys species, members of the Neotropical catfish family Loricariidae, have been widely introduced outside their native ranges. In this paper, I present observations on the diel activity pattern of non-native Pterygoplichthys, tentatively identified as P. disjunctivus, with respect to their attachment and grazing on endangered Florida manatees, Trichechus manatus latirostris. The study was conducted in December 2009 at Volusia Blue Spring, an artesianal spring system in the St. Johns River basin, Florida (USA). Supplemented by information gathered during previous visits to the spring site, this study revealed that adult Pterygoplichthys are active throughout the diel period (day, twilight and night). However, juvenile Pterygoplichthys...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pterygoplichthys; Diel activity pattern; Non-native fish; Invasive species.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000400020

Checklist comparison and dominance patterns of the fish fauna at Taim Wetland, South Brazil
Provedor de dados: 83
Autores: Garcia,Alexandre M.; Bemvenuti,Marlise A.; Vieira,João P.; Marques,David M. L. Motta; Burns,Marcelo D. M.; Moresco,Alex; Condini,Mario Vinicius L.
Taim Hydrological System is a unique subtropical wetland in southern Brazil harboring an exceptional biological diversity. In 1978, an ecological reserve was established to protect part of this area from increasing anthropogenic impacts in its surroundings. Fishes have been poorly investigated in this system. Based on a multi-gear sampling study encompassing several years (2001-2005), and on comparisons with previous fish inventories, we provide an up-to-date species list of fishes occurring in the Taim Wetland. In addition, we made the first preliminary description of fish dominance patterns found in the main lakes of the system (Flores, Nicola, Jacaré and Mangueira). Checklist comparison resulted in 62 fish species distributed in 24 families, with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Subtropical wetland; Neotropical fishes; Ecological Reserve; Invasive species; Patos-Mirim Lagoon complex.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000200012

A massive invasion of fish species after eliminating a natural barrier in the upper rio Paraná basin
Provedor de dados: 83
Autores: Júlio Júnior,Horácio Ferreira; Tós,Claudenice Dei; Agostinho,Ângelo Antonio; Pavanelli,Carla Simone.
Based on long-term studies in the upper rio Paraná basin, in addition to a broad review of literature and other information, we were able to identify 33 species of native fishes in the lower rio Paraná basin that successfully colonized the upper rio Paraná after Itaipu impoundment, that flooded the natural geographic barrier constituted by the Sete Quedas Falls. These species belong to six Orders, encompassing two of Myliobatiformes, six of Characiformes, 17 of Siluriformes, six of Gymnotiformes, one of Perciformes, and one of Pleuronectiformes. Extensive remarks regarding each species, including their influence upon the native assemblage, in addition to comments on other non-indigenous species, are also provided. We conclude that, in spite of its...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Invasive species; Biodiversity; Reservoir Impacts; Ecoregion; Sete Quedas Falls.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400021

Diversidad, abundancia y amenazas de los octocorales de la isla Malpelo, Pacífico Oriental Tropical, Colombia
Provedor de dados: 20
Autores: Sánchez, Juan A.; Gómez, Carlos E.; Escobar, Dairo; Dueñas, Luisa F.
Durante expediciones a la isla Malpelo en 2009 y 2010, se exploró la diversidad, abundancia y estado de los octocorales. Se encontraron siete especies de octocorales: Leptogorgia alba, Pacifigorgia cf. lacerata, Pacifigorgia sp.1 y Pacifigorgia sp.2, Muricea cf. fruticosa, Muricea sp. y la especie invasora Carijoa riisei. Los octocorales forman densas agregaciones en paredes y escarpes rocosos, con su mayor abundancia entre 10 y 20 m, alcanzando densidades máximas de hasta 20 colonias m-2. La especie más abundante fue Pacifigorgia cf. lacerata, con más de un 60 % de predominio en número y una frecuencia de aparición del 100 % para todos los sitios visitados. Para la mayoría de los sitios se determinó la existencia de tres zonas bien definidas de acuerdo a...
Tipo: Journal Contribution
Palavras-chave: Reefs (coral); Abundance; Species diversity; Invasive species.
Ano: 2011
URL: http://hdl.handle.net/1834/4423

Presencia del pez león, Pterois volitans (Actinopterygii: Scorpaenidae), en el departamento de la Guajira, Mar Caribe de Colombia
Provedor de dados: 20
Autores: Martínez Viloria, H.; Rosado Gómez, A.; Acero P., A.
The red lionfish was captured in the northeast Colombian Caribbean, in “El Yoyo” fishing ground, located in La Guajira peninsula (Riohacha). The Guajira continental shelf, located between Santa Marta and Venezuela, should be a stepping area for lionfish pelagic larvae.
Tipo: Journal Contribution
Palavras-chave: Biodiversity; Invasive species; Scorpaenidae.
Ano: 2011
URL: http://hdl.handle.net/1834/4386

First record of the Rubber-lip grunt Plectorhinchus mediterraneus (Guichenot 1850) (Osteichthyes: Haemulidae) in Tunisian waters (Central Mediterranean)
Provedor de dados: 20
Autores: Hattour, A.; Bradai, M. N.
Nous enregistrons ici la première observation du Diagramme gris Plectorhinchus mediterraneus (Guichenot, 1850) dans le centre Est de la Tunisie. Cette espèce atlanto-méditerranéenne à affinité chaude franche vit principalement dans le sud-est atlantique et signalée également en Méditerranée occidentale et en Adriatique, a été trouvé pour la première fois sur les côtes centre-est de la Tunisie à Salakta. Les deux spécimens capturés en avril 2011 aux filets maillants de fond sont deux mâles adultes mesurant respectivement 36 et 42 cm de longueur totale. Le présent article rapporte cette nouvelle observation qui pourrait indiquer l’établissement de l’espèce dans la région. Nous donnons par ailleurs une courte description de l'espèce et un commentaire sur sa...
Tipo: Journal Contribution
Palavras-chave: Fish species; Invasive species; Haemulidae.
Ano: 2011
URL: http://hdl.handle.net/1834/4746

A Sea Change : Exotics In The Eastern Mediterranean
Provedor de dados: 20
Autores: Galil, B.S.; Zenetos, A.
The eastern Mediterranean is susceptible to biological invasions because of its placement between the Atlantic, Pontic and Erythrean regions, busy maritime traffic, and lagoons and bays that are crowded with fish and shellfish farms. However, the greatest influx of invaders resulted from the opening of the Suez Canal in 1869, which allowed entry of Indo-Pacific and Erythrean biota. Exotic macro phytes, invertebrates and fish are found in most coastal habitats in the eastern Mediterranean. Some invaders have outcompeted or replaced native species locally, some are considered pests or cause nuisance, whereas other invaders are of commercial value. However, at variance with other invaded seas, the invasion into the eastern Mediterranean has increased the...
Tipo: Book Section
Palavras-chave: Aegean; Red Sea; Shipping Mariculture; Suez Canal; Biological Invasions; Levantine; Ionian; Fish species; Aquatic living resources; Invasive species; Http://aims.fao.org/aos/agrovoc/c_49865.
Ano: 2002
URL: http://hdl.handle.net/1834/672

Histórico da implementação da algaroba no Rio Grande do Norte
Provedor de dados: 190
Autores: Santos, João Paulo Silva dos; Diodato, Marco Antonio.
A algaroba (Prosopis juliflora (Sw) D.C.) constituiu-se como uma ação bem sucedida de introdução de xerófilas na região seca do Nordeste, sendo seus frutos usados na alimentação animal e a madeira em estacas, lenha e carvão. A espécie foi introduzida na região em 1942, se alastrando em “baixios” no Rio Grande do Norte, Paraíba, Pernambuco, Bahia e Piauí. Esta revisão tem como objetivo elucidar como a algaroba foi introduzida no Rio Grande do Norte e entender como foi sua disseminação. Sua introdução no Estado ocorreu a partir da instalação de experimentos na Fazenda São Miguel, no município de Angicos. O entusiasmo de técnicos e pesquisadores facilitou a distribuição de vagens e mudas nas propriedades rurais e cidades do Estado, contando também com...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recursos Florestais Prosopis juliflora; Zonas semiáridas; Espécies introduzidas Prosopis juliflora; Semiarid zones; Invasive species.
Ano: 2017
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/859

Sweetgum for wood production in the South and Southeastern Brazil
Provedor de dados: 190
Autores: Shimizu, Jarbas Yukio.
Sweetgum is a North and Central American tree species well known for the healing gum since the times of the Aztec civilization. In the southern United States, this is the most widely planted broadleaf species for wood  production. It grows well on a variety of site conditions, including on alluvial soil prone to flooding. As a result  of the wide natural distribution, it shows important variations in phenology and growth traits. The more  northern provenances tend to shut down growth processes much earlier and resume them later than the southern sources. These variations reflect directly on  the growth patterns among seed sources. Experiments  in several sites have demonstrated its potential value for wood production in small wood lots in the South and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Provenances; Invasive species; Alternative species Procedências; Espécie invasora; Espécie alternativa.
Ano: 2011
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/246

Vegetação arbórea em remanescentes florestais urbanos: Bosque do Lago da Paz, Dois Vizinhos, PR
Provedor de dados: 190
Autores: Konig Brun, Flávia Gizele; Brun, Eleandro José; Longhi, Solon Jonas; Gorenstein, Maurício Romero; Maria, Tamara Ribeiro Botelho Carvallho; Rêgo, Géssica Mylena Santana; Higa, Thatiana Tominaga.
Esse estudo teve por objetivo analisar a florística, estrutura e diversidade da vegetação arbórea e da regeneração de um fragmento florestal situado na área urbana de Dois Vizinhos, PR, por meio do método de censo. Foram utilizados os descritores fitossociológicos tradicionais como parâmetros de análise, dando indicações sobre o valor ecológico do fragmento. Evidenciou-se a ocorrência de 231 indivíduos em 2.500 m² de área, distribuídos em 35 espécies de 22 famílias botânicas. As famílias com maior número de espécies foram Lauraceae e Myrtaceae, com três espécies cada, seguida por Boraginaceae, Euphorbiaceae, Fabaceae, Meliaceae, Myrsinaceae, Rosaceae e Sapindaceae, com duas espécies cada, ficando as demais famílias com uma espécie cada. Entre as oito...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recursos Florestais; Conservação da natureza Conservação; Espécies exóticas; Espécies invasoras Forestry conservation; Exotic species; Invasive species.
Ano: 2017
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1405

A review of the introduced forest pests in Brazil
Provedor de dados: 86
Autores: Schühli,Guilherme Schnell e; Penteado,Susete Chiarello; Barbosa,Leonardo Rodrigues; Reis Filho,Wilson; Iede,Edson Tadeu.
Abstract: Special attention should be given to forest plantings in order to minimize the probability of exotic pest introduction and, consequently, of production losses. The objective of this review was to present, under a historic perspective, the main exotic insects that harm the Brazilian forest sector. Therefore, to better describe the phytosanitary context of introduced forest pests in Brazil, the main information regarding these insects was gathered here. Introduced species and species with a risk of introduction were listed. The following species were registered: 12 exotic introduced species related to eucalyptus, non-quarantine; 9 species related to pine, one quarantine; and 1 species related to teak, quarantine. Overall, the core problems for 57...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exotic pest; Forest pest; Forest sector; Invasive species; Pest resistance; Quarantine.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000500397

Comparative demography of the exotic Harmonia axyridis with other aphidophagous coccinellids reared on artificial diet
Provedor de dados: 86
Autores: Milléo,Julianne; Fernandes,Francisco Sales; Godoy,Wesley Augusto Conde.
The objective of this work was to compare biological aspects and life table parameters of the coccinellids Harmonia axyridis, Cycloneda sanguineaand Hippodamia convergens. Insects were fed eggs of Anagasta kuehniella, and reared at 24.5±1ºC, 70±10% relative humidity, with a 12 hour photophase. Hippodamia convergenstook about 1.6 day to complete development, longer than H. axyridis, and 2.4 day longer than C. sanguinea.At immature stages, H. axyridisexhibited the highest survival percentage (49.2%), in comparison to the other coccinellids. For mean adult longevity, H. convergenswas deficient, in comparison with the other species. Mean period of pre oviposition was the longest in C. sanguinea; the longest oviposition time occurred for H. axyridis; and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cycloneda sanguinea; Hippodamia convergens; Biological control; Developmental stages; Invasive species; Life table.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000100002

Economic Determinants of Invasion and Discovery of Nonindigenous Insects
Provedor de dados: 31
Autores: Hlasny,   Vladimir; Livingston,   Michael J.
Introductions of nonindigenous organisms into the United States have been linked to international trade. The individual contributions of imports, immigration, and international travel, however, are poorly understood because introduction dates are unavailable. We examine relationships between economic trends and discoveries of nonindegenous insects and use these relationships to infer the timing and determinants of introductions. We find that a few variables can explain much variation in species introductions and identifications. The most significant contributor to the introduction appears to be agricultural imports. Currently available proxies for academic effort are weak determinants of the probability that introduced species are identified.
Tipo: Journal Article
Palavras-chave: Identifications; Insects; Introductions; Invasive species; Nonindegenous; Agribusiness; Crop Production/Industries; F18; N7; Q56.
Ano: 2008
URL: http://purl.umn.edu/45044

Introductions of Invasive Species: Failure of the Weaker Link
Provedor de dados: 31
Autores: Burnett,   Kimberly M.
The prevention of invasive species is modeled as a "weaker link" public good. Under the weaker link aggregation technology, individual contributions beyond the lowest level will provide benefits, but these benefits progressively decline as contributions exceed the minimum. A two-region model is constructed, assuming incomplete information concerning costs of provision. This framework allows us to explain why we observe underinvestment in prevention, how information facilitates efficiency, and under what conditions information is most relevant. Specific implications regarding improved invasive species prevention policy are extracted and discussed.
Tipo: Journal Article
Palavras-chave: Weaker link; Invasive species; Public good aggregation; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/10179

Market-Based Instruments for the Optimal Control of Invasive Insect Species: B. Tabaci in Arizona
Provedor de dados: 31
Autores: Richards,   Timothy J.; Ellsworth,   Peter; Tronstad,   Russell; Naranjo,   Steve.
Invasive insect species represent perhaps one of the most significant potential sources of economic risk to U.S. agricultural production. Private control of invasive insect species is likely to be insufficient due to negative externality and weaker-link public good problems. In this study, we compare a system of Pigouvian taxes with tradable permits for invasive species control. While the emissions control literature shows that taxes are preferred to permits under cost uncertainty, invasive-species control involves correlated cost and benefit uncertainty. Hence, we expect a quantity-based system to be preferred. Monte Carlo simulations of optimal steady-state outcomes confirm our expectations.
Tipo: Journal Article
Palavras-chave: Externalities; Invasive species; Optimal control; Permits; Spatial-temporal model; Taxes; Crop Production/Industries; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/97852

Economic Issues of Invasive Pests and Diseases and Food Safety
Provedor de dados: 31
Autores: Evans,   Edward A.; Spreen,   Thomas H.; Knapp,   J.L.
The problem of invasive pests and diseases has become more urgent and far more complex today than in the recent past. Increased trade and movement of people, and the opening up of new trade routes have increased opportunities for the spread of invasive species. In addition, mono-cropping systems of cultivation; globalization; increased resistance of pests to pesticides and food safety and environmental concerns have all contributed to the growing complexity of the problem on hand. The economic dimensions of the problem can be viewed from at least two perspectives. First, with regard to the spread and impact of invasive species, particularly how best to provide more comprehensive assessments of impacts of invasions, so as to improve the cost effectiveness...
Tipo: Working or Discussion Paper
Palavras-chave: Sanitary and phytosanitary measures; SPS; Invasive species; WTO; Economic impact of invasive species; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; International Relations/Trade.
Ano: 2002
URL: http://purl.umn.edu/15696

Area-Wide Management of Fruit-Flies: What are the Costs and the Benefits?
Provedor de dados: 31
Autores: Florec,   Veronique; Sadler,   Rohan; White,   Benedict.
Increasing volumes and speed of agricultural trade and the opening of new markets for agricultural products create greater challenges to systems established to protect countries from invasive organisms that can be harmful to human and animal health, crops and natural environments. In reaction to the threat of exotic pests and diseases, the World Trade Organization recognises the right of country members to protect themselves from the risks posed by exotic pests and diseases through the application of Sanitary and Phytosanitary (SPS) measures. One possible response from exporting countries facing SPS trade barriers is to obtain pest-free area (PFA) certification. While large benefits can potentially be achieved from greater access to world markets through...
Tipo: Working or Discussion Paper
Palavras-chave: Eradication; Surveillance; Queensland Fruit Fly; Area-Wide Management of Pests; Pestfree area; Invasive species; Biosecurity; Agricultural and Food Policy; Crop Production/Industries; International Relations/Trade; Q1; Q17; Q18.
Ano: 2010
URL: http://purl.umn.edu/100881

Illicit Agricultural Trade
Provedor de dados: 31
Autores: Ferrier,   Peyton Michael.
Agricultural and wildlife trade is subject to sudden, disruptive import restrictions arising from concerns over sanitary and phytosanitary safety and the conservation of natural resources. These restrictions can create significant international price differences that encourage the smuggling of goods across borders. This article presents an equilibrium model of smuggling where the supply and demand for smuggled goods depend on interregional price disparities in the presence of a trade ban. In this model, smuggling is more prevalent when demand and supply among trade partners is more inelastic or when there are fewer total trade partners at the time a trade ban is enacted. Applications are presented for regionalization, destruction of goods in government...
Tipo: Journal Article
Palavras-chave: Illicit trade; Invasive species; Smuggling; SPS Agreement; CITES; Endangered Species Act; Regionalization; International Relations/Trade.
Ano: 2008
URL: http://purl.umn.edu/45668

ALLOCATING BIOSECURITY RESOURCES IN SPACE AND TIME
Provedor de dados: 31
Autores: Cacho,   Oscar J.; Hester,   Susan M.
Invasive species can cause significant damage to natural environments, agricultural systems, human populations and the economy as a whole. Biological invasions are complex dynamic systems which are inherently uncertain and their control involves allocation of surveillance and treatment resources in space and time. A complicating factor is that there are at least two types of surveillance: active and passive. Active surveillance, undertaken by pest control agencies, has high sensitivity but generally low coverage because of its high cost. Passive surveillance, undertaken by the public, has low sensitivity and may have high coverage depending on human population density. Its effectiveness depends on the extent to which information campaigns succeed in...
Tipo: Conference Paper or Presentation
Palavras-chave: Search theory; Invasive species; Dispersal; Passive surveillance.; Environmental Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/100535

Prevention, Eradication, and Containment of Invasive Species: Illustrations from Hawaii
Provedor de dados: 31
Autores: Burnett,   Kimberly M.; Kaiser,   Brooks A.; Pitafi,   Basharat A.K.; Roumasset,   James A.
Invasive species change ecosystems and the economic services such ecosystems provide. Optimal policy will minimize the expected damages and costs of prevention and control. We seek to explain policy outcomes as a function of biological and economic factors, using the case of Hawaii to illustrate. First, we consider an existing invader, Miconia calvescens, a plant with the potential to reduce biodiversity, soil cover, and water availability. We then examine an imminent threat, the potential arrival of the Brown treesnake (Boiga irregularis). The arrival of the snake in Guam has led to native bird extirpations, power outages, and health costs.
Tipo: Journal Article
Palavras-chave: Invasive species; Bioeconomics; Optimal control; Miconia calvescens; Boiga; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/10178

Optimal control of spatial-dynamic processes: The case of biological invasions
Provedor de dados: 31
Autores: Epanchin-Niell,   Rebecca S.; Wilen,   James E.
This study examines the spatial nature of optimal bioinvasion control. We develop and parameterize a spatially explicit two-dimensional model of species spread that allows for differential control across space and time, and we solve for optimal control strategies. We find that the qualitative nature of optimal strategies depend in interesting ways on aspects of landscape and invasion geometry. For example, we show that reducing the extent of exposed invasion edge, through spread, removal, or strategically employing landscape features, can be an optimal strategy because it reduces long-term containment costs. We also show that optimal invasion control is spatially and temporally “forward-looking” in the sense that strategies should be targeted to slow the...
Tipo: Conference Paper or Presentation
Palavras-chave: Invasive species; Spatial-dynamic processes; Spatial spread; Reaction-diffusion; Management; Cellular automaton; Eradication; Containment; Spatial control; Integer programming; Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy; Q; Q1; Q2; Q5.
Ano: 2010
URL: http://purl.umn.edu/61375

Economic Impacts of the U.S. Soybean Aphid Infestation: A Multi-Regional Competitive Dynamic Analysis
Provedor de dados: 31
Autores: Kim,   C.S.; Schaible,   Glenn D.; Garrett,   Lynn; Lubowski,   Ruben N.; Lee,   Donna J.
We estimated the economic benefits resulting from controlling soybean aphid infestation by using a multi-regional competitive dynamic equilibrium model. Results indicate that the reduction of soybean production resulting from a soybean aphid infestation is largely absorbed by reducing soybean exports, due to the higher price elasticity of export demand compared to domestic demand. Producer benefits resulting from controlling soybean aphids would increase by between $949 million and $1.623 billion in ten years under various scenarios. Results also suggest that it is economically more efficient to control soybean aphids when the rate of intrinsic growth is relatively lower, the supply price elasticity of soybean acreage is relatively more elastic, and...
Tipo: Journal Article
Palavras-chave: Soybean aphid; Invasive species; Producer surplus; Consumer surplus; Rag-1; Crop Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/45660

Invasive Species Control over Space and Time:  Miconia calvescens on Oahu, Hawaii
Provedor de dados: 31
Autores: Burnett,   Kimberly M.; Kaiser,   Brooks A.; Roumasset,   James A.
The optimal size and location of an invasive species population depend upon spatially differentiated biological growth, economic costs, and damages.  Although largely absent from most economic models, spatial considerations matter because the likelihood and magnitude of the invasion vary spatially and the threatened assets may be unevenly distributed across space.  We map the current and future populations of an invasive species, Miconia calvescens, on Oahu, Hawaii, and the potential damages to water quantity, quality, and endangered-species habitat, and weigh these against treatment costs.  We find that optimal densities vary from approximately 1% to 18% cover throughout the island.
Tipo: Journal Article
Palavras-chave: Geographical Information Systems; Hawaii; Invasive species; Miconia calvescens; Oahu; Spatial analysis; Watershed; Q23; Q25; Q28; Q51; Q57.
Ano: 2007
URL: http://purl.umn.edu/37274

Border Enforcement and Firm Response in the Management of Invasive Species
Provedor de dados: 31
Autores: Ameden,   Holly A.; Cash,   Sean B.; Zilberman,   David.
This analysis presents a theoretical model of firm response to border enforcement and evaluates both the intended and unintended effects under two enforcement regimes:  destruction versus treatment of contaminated shipments.  The results indicate that importers may respond to increased inspection by reducing shipments and decreasing due care.  In response to increased pest populations, firms may reduce shipments and increase due care, indicating that an enforcement response may not be necessary.  The analysis reveals the importance of the nature of the due-care technology, as well as the relationships underlying the probability of detection, in determining the effects of enforcement.
Tipo: Journal Article
Palavras-chave: Border enforcement; Environmental regulation; Invasive species; Trade and environment; F18; L51; Q17; Q56; Q58.
Ano: 2007
URL: http://purl.umn.edu/37112

Environmental Restoration of Invaded Ecosystems: How Much Versus How Often?
Provedor de dados: 31
Autores: Ranjan,   Ram.
This paper derives the optimal level of restorative efforts required to restore environments degraded by invasive species invasion. Specific attention is focused upon a case when the restoration efforts face the risk of failure through relapse of the restored environment. The level of restored environment may also play a role in its future improvement or susceptibility to failure. The tradeoff between the optimal level of environmental quality and number of restorative efforts required to attain that given environmental quality is analyzed.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental restoration; Resiliency; Restoration failure; Invasive species; Environmental Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/15661

Technology Adoption Against Invasive Species
Provedor de dados: 31
Autores: Ranjan,   Ram.
This article looks at technology adoption in agriculture that is specifically targeted against invasive species.  The analysis involves predicting the long-term distribution of technology choices when technology can be adopted and is adopted based on current and expected agricultural profits influenced by pest infestation.  The theoretical analysis is based on an extension of two authors’ findings in 1993 and incorporates the possibility that psychological factors, such as complacency, have a significant impact on technology adoption and hence disease establishment.  An empirical application is performed for soybean rust.
Tipo: Journal Article
Palavras-chave: Adoption psychology; Invasive species; Popularity weighting; Soybean rust; Technology adoption; Q16.
Ano: 2007
URL: http://purl.umn.edu/37116

Exotic Pests and Trade: When Is Pest-Free Status Certification Worthwhile?
Provedor de dados: 31
Autores: Lichtenberg,   Erik; Lynch,   Lori.
Pest-free status certification is desirable if the demand-side impacts (increased export revenue) and supply-side impacts (lower pest damage and decreased ongoing control costs) exceed the compliance monitoring and eradication costs. Thus, eradication may be optimal without certification. Certification is more likely for regions facing costly treatment requirements (bans) or possessing geographic traits that lower monitoring costs and infestation probabilities than for those exporting higher-valued products. Certification benefits producers but hurts consumers. Thus, political feasibility may be greater if domestic consumption is a small share of the market and if the additional tax burden of certification programs is light.
Tipo: Journal Article
Palavras-chave: Exotic pests; Invasive species; Pest-free area; Eradication; Sanitary/phytosanitary regulations; International Relations/Trade.
Ano: 2006
URL: http://purl.umn.edu/10182

Invasive Species Management Through Tariffs: Are Prevention and Protection Synonymous?
Provedor de dados: 31
Autores: Ranjan,   Ram.
This Paper designs a political economy model of invasive species management in order to explore the effectiveness of tariffs in mitigating the risk of invasion. The revenue interests of the government together with the interests of the lobby group competing with the imported agricultural commodity, that is believed to be the vector of invasive species, are incorporated in a Nash Bargaining game. The government, however, also considers the impact of tariffs on long run risks of invasion and decides optimal tariffs based upon its welfare in the pre and post-invasion scenarios. Along with the size of the lobby group, which is a function of the slope of the demand and supply curves, the weights assigned to the various components in the government welfare...
Tipo: Working or Discussion Paper
Palavras-chave: Invasive species; Political economy; Tariffs; Bargaining; Interest groups; Political Economy; Resource /Energy Economics and Policy; H23; Q17; Q58.
Ano: 2004
URL: http://purl.umn.edu/15642

The Economic Impact of Invasive Species in the Ornamental Commodity in Puerto Rico: Towards Establishing a Multidimensional Framework for Data Collection and Analysis
Provedor de dados: 31
Autores: Alamo,   Carmen I.; Franqui,   R.A.; Evans,   Edward A.
The ornamental commodity in Puerto Rico is valued for its economic contribution in the agricultural sector, its contribution to the esthetics of natural scenarios that impact the tourism sector, and for its environmental role. In the fiscal year 2001, ornamentals generated 4.8% of the total Agricultural Gross Product. In that year the production value at farm level was $34.1 million, the export value $0.5 million, and the import value $11.5 millions. Of the local production value, 1.5% was exported and 34.3% of the ornamental local market value was imported. The active trade traffic in Puerto Rico is a factor that increases the risk of the introduction of invasive species that affect the agricultural sector. It is necessary to estimate the economic impact...
Tipo: Working or Discussion Paper
Palavras-chave: Invasive species; Ornamental; Economic impact analysis; Crop Production/Industries.
Ano: 2004
URL: http://purl.umn.edu/15647

Induced-Innovation and Invasive Species Management
Provedor de dados: 31
Autores: Kim,   C.S.; Schaible,   Glenn D.; Lewandrowski,   Jan.
Public policy for managing invasive species has largely focused on preventive measures prior to detection (stage 1) and on the use of chemical/mechanical or biological control measures after the establishment and dispersion of the invasive species (stage 2).  Optimal management policy depends both on the initial stock of the invasive species and on the costs associated with conventional control measures.  However, little attention has focused on how an induced technology such as Bt corn and Bt cotton is developed and adopted by farmers (stage 3), or how it affects the manageability of economic and ecological damages from an invasive species.  This analysis evaluates the optimal allocation of management resources between preventive and control measures for...
Tipo: Conference Paper or Presentation
Palavras-chave: Invasive species; Preventive measures; Control measures; Induced technology; Hazard function; Optimal control; Comparative dynamic analysis; Environmental Economics and Policy; Production Economics.
Ano: 2010
URL: http://purl.umn.edu/60985

Market-Based Instruments for the Optimal Control of Invasive Insect Species: B. Tabaci in Arizona
Provedor de dados: 31
Autores: Richards,   Timothy J.; Ellsworth,   Peter; Tronstad,   Russell; Naranjo,   Steve.
Invasive insect species represent perhaps one of the most significant potential sources of economic risk to U.S. agricultural production.  Private control of invasive insect species is likely to be insufficient due to negative externality and weaker-link public good problems.  In this study, we compare a system of Pigouvian taxes with tradable permits for invasive species control.  While the emissions control literature shows that taxes are preferred to permits under cost uncertainty, invasive species control involves correlated cost and benefit uncertainty, so we expect a quantity-based system to be preferred.  Monte Carlo simulations of optimal steady-state outcomes confirm our expectations.
Tipo: Conference Paper or Presentation
Palavras-chave: Externalities; Invasive species; Optimal control; Permits; Spatial-temporal model; Taxes.; Environmental Economics and Policy; Public Economics; Risk and Uncertainty; H23; L51; Q28; Q57.
Ano: 2010
URL: http://purl.umn.edu/61189

Positive Analysis of Invasive Species Control as a Dynamic Spatial Process
Provedor de dados: 31
Autores: Buyuktahtakin,   Esra; Feng,   Zhuo; Olsson,   Aaryn; Frisvold,   George B.; Szidarovszky,   Ferenc.
This paper models control of invasive buffelgrass (Pennisetum ciliare), a fire-prone African bunchgrass spreading rapidly across the southern Arizona desert as a spatial dynamic process. Buffelgrass spreads over a gridded landscape. Weed carrying capacity, treatment costs, and damages vary over grid cells. Damage from buffelgrass depends on its spatial  distribution in relation to valued resources. We conduct positive analysis of recommended heuristic strategies for buffelgrass control, evaluating their ability to prevent weed establishment and to reduce damage indices over time. The high dimensionality of the problem makes full dynamic optimization intractable. However, two heuristic strategies – potential damage weighting and consecutive year treatment –...
Tipo: Conference Paper or Presentation
Palavras-chave: Invasive species; Integer programming; Crop Production/Industries; Environmental Economics and Policy; Q57; Q58.
Ano: 2010
URL: http://purl.umn.edu/61753

Technical Barriers to Interstate Trade: Noxious Weed Regulations
Provedor de dados: 31
Autores: Gopinath,   Munisamy; Min,   He; Buccola,   Steven T.
We focus on regulations controlling the spread of noxious weeds, especially the trade effects of regulatory differences across U.S. states. We specify a gravity model for each state’s seed, nursery product, and commodity trade with each other state. Within the gravity model, we examine the role of cross-state regulatory congruence arising from ecological and agronomic characteristics and interest-group lobbying. A spatial-autoregressive Tobit model is estimated with a modified expectation-maximization algorithm. Results show that weed regulatory congruence positively affects interstate trade. By fostering cross-state regulatory differences, consumer and commodity-producer lobbying reduce the value of interstate trade by about two percent per annum.
Tipo: Journal Article
Palavras-chave: Interstate trade; Invasive species; Rent-seeking; Agribusiness; Community/Rural/Urban Development; Food Consumption/Nutrition/Food Safety; Land Economics/Use; Political Economy; Public Economics; Research Methods/ Statistical Methods; F1; H7; Q5.
Ano: 2010
URL: http://purl.umn.edu/100527

Private Responses to Public Incentives for Invasive Species Management
Provedor de dados: 31
Autores: Ranjan,   Ram; Evans,   Edward A.
In this paper the impact of public policies such as subsidies and taxation on invasive species management is explored in a Markov chain framework. Private agents react to public incentives based upon their long term expected profits and have the option of taking measures such as abatement, monitoring and reporting. Conditions for perverse incentives are derived. The impact of sequencing of taxation and subsides on spread of risks if explored. One key finding of this paper is that excessive regulation may exacerbate the invasive species problem.
Tipo: Working or Discussion Paper
Palavras-chave: Invasive species; Markov process; Perverse incentives; Taxation and subsidies; Agricultural and Food Policy; Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/15645

Invasive Species Management: Foot-and-Mouth Disease in the U.S. Beef Industry
Provedor de dados: 31
Autores: Zhao,   Zishun; Wahl,   Thomas I.; Marsh,   Thomas L.
A conceptual bio-economic framework that integrates dynamic epidemiologicaleconomic processes was designed to analyze the effects of invasive species introduction on decision-making in a livestock sector (e.g., production and feeding). The framework integrates an epidemiological model, a dynamic livestock production model, domestic consumption, and international trade. The integrated approach captures producer and consumer responses to, and welfare outcomes of, livestock disease outbreaks, as well as alternative invasive species management policies. Scenarios of foot-and-mouth disease are simulated to demonstrate the usefulness of the framework in facilitating invasive species policy design.
Tipo: Conference Paper or Presentation
Palavras-chave: Bio-economics; Livestock; Invasive species; Foot-and-mouth disease; Beef cattle production; Livestock Production/Industries.
Ano: 2006
URL: http://purl.umn.edu/25490

Integration-Valuation Nexus in Invasive Species Policy
Provedor de dados: 31
Autores: Shogren,   Jason F.; Finnoff,   David C.; McIntosh,   Christopher R.; Settle,   Chad.
This paper reviews recent work examining two topics of economic research vital for invasive species policy-integration and valuation. Integration requires bioeconomic models that blend invasive biology with economic circumstances and the feedback loops between the two systems. Valuation requires nonmarket valuation associated with human and environmental damages posed by invasive species. We argue for a second-level of integration in invasive species economics-valuation based on integration models. Policy prescriptions based on integration models need valuation work; valuation surveys need integration models-the two are complements. Valuation could be enhanced with integration in mind; integration could be made better with valuation in mind. An example...
Tipo: Journal Article
Palavras-chave: Invasive species; Integrated economic-ecological modeling; Nonmarket valuation; Environmental Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/10183

A Government Decision Model for Invasive Species: Choosing the Most Efficient Government Program for the Management of Livestock Diseases
Provedor de dados: 31
Autores: Zhang,   Yichen; Muhammad,   Andrew; Coble,   Keith H.
The impact of invasive species has grown substantially in recent years as evident by the trends in government expenditures in response to outbreaks. In this paper, authors analyze advantages and disadvantages of current government compensation measures for invasive species. The conceptual models are built to describe the relationship between producers’ utility and the effect of adoption of different measures under different observability condition. As a case study, a survey is designed to analyze producer behavior in mitigating AI &amp; END outbreaks.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy; Invasive species; Indemnification programs; Insurance programs; Tiered indemnification.
Ano: 2009
URL: http://purl.umn.edu/47115

Invasive Species Management: Foot-and-Mouth Disease in the U.S. Beef Industry
Provedor de dados: 31
Autores: Zhao,   Zishun; Wahl,   Thomas I.; Marsh,   Thomas L.
A conceptual bioeconomic framework that integrates dynamic epidemiological-economic processes was designed to analyze the effects of invasive species introduction on decision making in a livestock sector (e.g., production and feeding). The framework integrates an epidemiological model, a dynamic livestock production model, domestic consumption, and international trade. The integrated approach captures producer and consumer responses and welfare outcomes of livestock disease outbreaks, as well as alternative invasive species management policies. Scenarios of foot-and-mouth disease are simulated to demonstrate the usefulness of the framework in facilitating invasive species policy design.
Tipo: Journal Article
Palavras-chave: Livestock; Invasive species; Foot-and-mouth disease; Beef cattle production; Livestock Production/Industries.
Ano: 2006
URL: http://purl.umn.edu/10174

Bang for the Buck: Cost-Effective Control of Invasive Species with Different Life Histories
Provedor de dados: 31
Autores: Buhle,   Eric; Margolis,   Michael; Ruesink,   Jennifer L.
Strategies for controlling invasive species can be aimed at any or all of the stages in the life cycle. In this paper we show how to combine biological data on population dynamics with simple economic data on control cost options to determine the least costly set of strategies that will halt an invasion. We then apply our methods to oyster drills (Ocinebrellus inornatus), an economically important aquaculture pest that has been accidentally introduced worldwide. If the costs of intervention were the same across life stages, extermination of adults would be an inefficient way to control species with the population dynamics characteristics of invaders. In the oyster drill case, however, efficient control targets adults because they are much easier to find.
Tipo: Working or Discussion Paper
Palavras-chave: Invasive species; Bioeconomics; Control strategies; Environmental Economics and Policy; Q10; Q2; Q22.
Ano: 2004
URL: http://purl.umn.edu/10793

Public Policy, Invasive Species and Animal Disease Management
Provedor de dados: 31
Autores: Sumner,   Daniel A.; Bervejillo,   Jose E.; Jarvis,   Lovell S.
There has been a rapid increase in recent years in invasive species and animal management economic research. Expanded interest in the topic has been partially driven by the practical importance of public policy to deal effectively with invasive species, given its public good aspects. This paper shows that the basic criteria of public goods: non-rivalry and non-excludability, apply directly to animal disease border measures and eradication services, with some caveats. It is also argued that public policy should assess disease control and eradication on grounds of biology, national economic interests, and international cooperation. Specific regulations and programs must be evaluated on the basis of cost benefit principles.
Tipo: Journal Article
Palavras-chave: Invasive species; Animal disease management; BSE; FMD; Sanitary barriers to trade; Agricultural and Food Policy; International Relations/Trade; Livestock Production/Industries.
Ano: 2005
URL: http://purl.umn.edu/8181

Predicting Potential Invasive Species Distribution: An Application to New Zealand Mudsnails in the Pacific Northwest
Provedor de dados: 31
Autores: Lim,   Youngah; Gopinath,   Munisamy; Chan,   Samuel; Harte,   Michael.
Quantitative approach for invasive species risk assessment
Tipo: Conference Paper or Presentation
Palavras-chave: Invasive species; New Zealand mudsnail; Gravity model; Maxent model; Risk assessment; Environmental Economics and Policy; Risk and Uncertainty.
Ano: 2011
URL: http://purl.umn.edu/103646

Weed Invasions: To Control or Not to Control?
Provedor de dados: 31
Autores: Cacho,   Oscar J.; Wise,   Russell M.; Hester,   Susan M.; Sinden,   Jack A.
When a weed invasion is discovered a decision has to be made as to whether to attempt to eradicate it, contain it or do nothing. Ideally, these decisions should be based on a complete benefit-cost analysis, but this is often not possible. A partial analysis, combining knowledge of the rate of spread, seedbank longevity and economic-analysis techniques, can assist in making the best decision. This paper presents a model to decide when immediate eradication of a weed should be attempted, or whether weed control should be attempted at all. The technique is based on identifying two 'switching points': the invasion size at which it is no longer optimal to attempt eradication, and the invasion size at which it becomes optimal not to apply any form of control. It...
Tipo: Working or Discussion Paper
Palavras-chave: Invasive species; Eradication; Containment; Economics; Weed control; Switching point; Farm Management.
Ano: 2004
URL: http://purl.umn.edu/12908

Optimal Management of a Potential Invader:  The Case of Zebra Mussels in Florida
Provedor de dados: 31
Autores: Lee,   Donna J.; Adams,   Damian C.; Rossi,   Frederick J.
Dominant users of Lake Okeechobee water resources are agricultural producers and recreational anglers.  These uses will be directly affected, should the lake become infested with zebra mussels.  We employ a probabilistic bioeconomic simulation model to estimate the potential impact of zebra mussels on consumptive water uses, recreational angling, and wetland ecosystem services under alternative public management scenarios.  Without public management, the expected net economic impact from zebra mussels is - $244.1 million over 20 years.  Public investment in prevention and eradication will yield a net expected gain of +$188.7 million, a superior strategy to either prevention or eradication alone.
Tipo: Journal Article
Palavras-chave: Cost transfer; Fishing; Invasive species; Probability transition matrix; Surface water; Wetlands; C63; Q25; Q52; Q57; Q58.
Ano: 2007
URL: http://purl.umn.edu/37125

How Trade Politics Affect Invasive Species Control
Provedor de dados: 31
Autores: Margolis,   Michael; Shogren,   Jason F.
Trade has become the main mode of transport for many invasive species including diseases and agricultural pests. Most species are brought to their new homes unintentionally, which constitute a market failure rooted in international trade. Unless it is practical to drive invasion risk to zero, the external costs may justify a tariff. In this paper we analyze the political process likely to govern the formation of tariffs so justified, using a straightforward incorporation of an invasive species externality into Grossman and Helpman's well-known political economy model. We show our measure of disguised protectionism -the gap between the optimal tariff and that set in the equilibrium of the political economy game- is equal to the tariff that would be set if...
Tipo: Working or Discussion Paper
Palavras-chave: Invasive species; Protectionism; Tariff; Political economy; Environmental Economics and Policy; Q17; Q56; Q57.
Ano: 2004
URL: http://purl.umn.edu/10770

POTENTIAL IMPACTS OF THE ASIAN CLIMBING PERCH ON QUEENSLAND
Provedor de dados: 31
Autores: East,   Miriam; Micke,   Wade.
Risk of establishment of the freshwater climbing perch (Anabas testudineus) in mainland Queensland from the Torres Strait is high. The species is dispersed through human assistance and/or attributes that assist its own spread. The species has the potential to out-compete native freshwater and estuarine species, and has sharp well-developed gill plates and spines that may choke and kill predatory species like barramundi if swallowed. The presence of climbing perch would severely impact Queensland’s inshore and freshwater fisheries, both commercial and recreational. The net present value of expected lost fishing activity due to build-up of the climbing perch is $48.5 million when the probability of introduction is 20 per cent. Analysis of potential spending...
Tipo: Conference Paper or Presentation
Palavras-chave: Invasive species; Impact; Risk; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2008
URL: http://purl.umn.edu/6018

The Economic Impacts of a Foot-And-Mouth Disease Outbreak:  A Regional Analysis
Provedor de dados: 31
Autores: Pendell,   Dustin L.; Leatherman,   John C.; Schroeder,   Ted C.; Alward,   Gregory S.
Contagious animal diseases like foot-and-mouth disease (FMD) are often referred to as economic diseases because of the magnitude of economic harm they can cause to producers and to local communities.  This study demonstrates the local economic impact of a FMD outbreak in southwest Kansas.  The expected economic impact of the disease hinges heavily on where the incidence of the disease occurs.  Disease surveillance, management strategies, mitigation investment, and overall diligence clearly need to be much greater in concentrated cattle feeding and processing areas at large feeding operations in the region.
Tipo: Journal Article
Palavras-chave: Foot-and-mouth disease; Invasive species; Livestock; Regional analysis; Q11; Q13; R15.
Ano: 2007
URL: http://purl.umn.edu/37093

Optimal Management of Invasive Species with Different Reproduction and Survival Strategies
Provedor de dados: 31
Autores: Elofsson,   Katarina; Bengtsson,   Goran; Gren,   Ing-Marie.
In this paper, a numerical model is developed where the role of species life history and age structure for the optimal management of a harvested resident species which is exposed to an invasive species. It is shown that reproduction and mortality characteristics of both species as well as age structure of the invader at the time of invasion are important for the costs of invasions when the invader and resident species compete for scarce resources. Species with low juvenile survival and high reproduction is found to be most robust against invasions and more damaging as an invader. Properties of the harvesting cost function as well as the discount rate are shown to be of importance for the development of the invader population. Hence, it is possible to...
Tipo: Conference Paper or Presentation
Palavras-chave: Invasive species; Resident species; Control; Harvest; Age-structured model; Optimization; Resource /Energy Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/114343

Prevention or Control: Optimal Government Policies for Invasive Species Management
Provedor de dados: 31
Autores: Kim,   C.S.; Lubowski,   Ruben N.; Lewandrowski,   Jan; Eiswerth,   Mark E.
We present a conceptual, but empirically applicable, model for determining the optimal allocation of resources between exclusion and control activities for managing an invasive species with an uncertain discovery time. This model is used to investigate how to allocate limited resources between activities before and after the first discovery of an invasive species and the effects of the characteristics of an invasive species on limited resource allocation. The optimality conditions show that it is economically efficient to spend a larger share of outlays for exclusion activities before, rather than after, a species is first discovered, up to a threshold point. We also find that, after discovery, more exclusionary measures and fewer control measures are...
Tipo: Journal Article
Palavras-chave: Invasive species; Exclusion; Control; Eradication; Public expenditures; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/10176

Biosecurity Economics: Conflicting results in evaluation criteria
Provedor de dados: 31
Autores: Goswami,   Sarah L.
Determining the optimal policy response to a species invasion is a multidimensional problem. The choice between eradication or containment has social, environmental, political and economic dimensions. Often, economic evaluation is used as a basis to underpin policy decisions. However, under certain conditions economic evaluation criteria may provide conflicting results. Deterministic factors, such as rate of spread, degree of damage and the time until detection, are derived for identifying when caution must be taken with the results of economic evaluation criteria. The conditions under which conflicting results may be obtained between NPV and BCR are identified and linked to policy implications.
Tipo: Conference Paper or Presentation
Palavras-chave: Biosecurity economics; Eradication; Containment; Invasive species.
Ano: 2009
URL: http://purl.umn.edu/48158

MODELING THE EFFECT OF SPATIAL EXTERNALITIES ON INVASIVE SPECIES MANAGEMENT
Provedor de dados: 31
Autores: McKee,   Gregory J.; Goodhue,   Rachael E.; Chalfant,   James A.; Carter,   Colin A.
Changes in production conditions associated with biological invasions can be complex. As a result, modeling invasive species management decisions can be difficult.  Modeling these decisions is further compounded by externalities associated with spatial relationships among growers.  In order to calculate optimal management decisions, an accurate bioeconomic model of the feedback between grower decisions and the new biological interactions created by an invasive species population is needed.  In this paper, a bioeconomic model is used to explicitly analyze how externalities caused by spatial relationships among agricultural producers affect optimal invasive species management decisions.  The example of the coordinated greenhouse whitefly management in the...
Tipo: Conference Paper or Presentation
Palavras-chave: Invasive species; Strawberry; Greenhouse whitefly; Externality; Optimal management; Research Methods/ Statistical Methods.
Ano: 2006
URL: http://purl.umn.edu/21137

Surveillance in Fruit Flies Free Areas: An Economic Analysis
Provedor de dados: 31
Autores: Florec,   Veronique; Sadler,   Rohan; White,   Benedict.
Increasing pressure to reduce the use of pre and post-harvest treatment chemicals to control insect pests has led to calls for alternative control methods. As a result, the implementation of area-wide management of pests could be developed as either an alternative to chemicals or as a means of reducing pesticide use. However, maintaining an area-wide management programme can be expensive as it requires the execution of surveillance activities, exclusion measures and contingency plans for a rapid eradication response in the case of a pest outbreak. A sound benefit-cost analysis is an essential starting point to measure gains from research and development into improved methods of surveillance and exclusion. This paper presents a study of the costs of...
Tipo: Working or Discussion Paper
Palavras-chave: Surveillance measures; Queensland Fruit Fly; Area-Wide Management of Pests; Pest-free area; Invasive species; Agricultural and Food Policy; Q1; Q17; Q18.
Ano: 2010
URL: http://purl.umn.edu/100882

Tariff Escalation and Invasive Species Risk
Provedor de dados: 31
Autores: Tu,   Anh Thuy; Beghin,   John C.; Gozlan,   Estelle.
We investigate the interface between trade and invasive species (IS) risk, focusing on the existing tariff escalation in agro-forestry product markets and its implication for IS risk. Tariff escalation in processed agro-forestry products exacerbates the risk of IS by biasing trade flows toward increased trade of primary commodity flows and against processed-product trade. We show that reducing tariff escalation by lowering the tariff on processed goods increases allocative efficiency and reduces the IS externality, a win-win situation. We also identify policy menus for trade reforms involving tariffs on both raw input and processed goods, leading to win-win situations.
Tipo: Working or Discussion Paper
Palavras-chave: Agro-forestry products; Exotic pest; International trade; Invasive species; Tariff escalation; Trade flows; Resource /Energy Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/18377

Applying search theory to determine the feasibility of eradicating an invasive population in natural environments
Provedor de dados: 31
Autores: Cacho,   Oscar J.; Hester,   Susan M.; Spring,   Daniel.
The detectability of invasive organisms influences the feasibility of eradicating an infestation. Search theory offers a framework for defining and measuring detectability, taking account of searcher ability, biological factors and the search environment. In this paper, search theory concepts are incorporated into a population model, and the costs of search and control are calculated as functions of the amount of search effort (the decision variable). Simulations are performed on a set of weed scenarios in a natural environment, involving different combinations of plant longevity, seed longevity and plant fecundity. Results provide preliminary estimates of the cost and duration of eradication programs to assist in prioritising weeds for control. The...
Tipo: Article
Palavras-chave: Bioeconomics; Invasive species; Operations research; Population dynamics; Weed control; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/118522

Integrating Invasive Species Prevention and Control Policies
Provedor de dados: 31
Autores: Livingston,   Michael J.; Osteen,   Craig D.
Programs and policies to minimize the threat of, or mitigate the damages from, invasive species work best if designed in concert with each other. Whether program emphasis should be on prevention or control depends on the biological characteristics and size of the invasive species population, ecological characteristics of invaded ecosystems, the cost and efficacy of prevention measures relative to control measures, and the level of prevention costs borne abroad. Because all of these factors are highly variable, data needs are constant if intervention is to be both effective and economical.
Tipo: Report
Palavras-chave: Agricultural economics; Invasive species; Management programs; Pests; Plant diseases; Foreign pests; Trade; Production; ERS; USDA; Environmental Economics and Policy; Farm Management; Production Economics.
Ano: 2008
URL: http://purl.umn.edu/58991

Estimating the Value of Invasive Aquatic Plant Control:  A Bioeconomic Analysis of 13 Public Lakes in Florida
Provedor de dados: 31
Autores: Adams,   Damian C.; Lee,   Donna J.
We present a bioeconomic model of three invasive aquatic plants (hydrilla, water hyacinth, and water lettuce) in 13 large Florida lakes, and simulate one-year and steady-state impacts of three control scenarios.  We estimate that the steady-state annual net benefit of invasive plant control is $59.95 million.  A one-year increase in control yields steady-state gains of $6.55 million per year, and a one-year lapse causes steady-state annual losses of $18.71 million.  This model shows that increased control of hydrilla, water hyacinth, and water lettuce is optimal.
Tipo: Journal Article
Palavras-chave: Aquatic plants; Bioeconomics; Invasive species; Lakes; Maintenance control; Q57; Q26; Q28; Q51; Q25.
Ano: 2007
URL: http://purl.umn.edu/37139

Intra-Industry Trade, Multilateral Trade Integration, and Invasive Species Risk
Provedor de dados: 31
Autores: Tu,   Anh Thuy; Beghin,   John C.
We analyze the linkage between protectionism and invasive species (IS) hazard in the context of two-way trade and multilateral trade integration, two major features of real-world agricultural trade. Multilateral integration includes the joint reduction of tariffs and trade costs among trading partners. Multilateral trade integration is more likely to increase damages from IS than predicted by unilateral trade opening under the classic Heckscher-Ohlin-Samuelson (HOS) framework because domestic production (the base susceptible to damages) is likely to increase with expanding  export markets. A country integrating its trade with a partner characterized by relatively higher tariff and trade costs is also more likely to experience increased IS damages via...
Tipo: Working or Discussion Paper
Palavras-chave: Exotic pest; Intra-industry trade; Invasive species; Liberalization; Trade cost; Trade integration; Trade protection; Two-way trade; Environmental Economics and Policy; International Relations/Trade.
Ano: 2006
URL: http://purl.umn.edu/18505

Simulating the U.S. Impacts of Alternative Asian Soybean Rust Treatment Regimes
Provedor de dados: 31
Autores: Johansson,   Robert C.; Livingston,   Michael J.; Westra,   John V.; Guidry,   Kurt M.
Asian soybean rust (rust) is an emerging issue in U.S. crop production and was identified in nine states during 2004. Recent farm surveys indicate that many producers are adjusting their management practices to the possibility of a rust infestation. The economic and environmental impacts of such adjustments are not known in the medium run given these new developments. We combine 2005 data on the geographical distribution of the fungal pathogen that causes rust with 2005 information on the availability and material costs of fungicides to analyze three treatment strategies. Our results indicate a higher range of economic impacts than previous  research has indicated, but are consistent with earlier findings indicating that rust infestations will likely...
Tipo: Journal Article
Palavras-chave: Asian soybean rust; Invasive species; Phakopsora pachyrhizi; Preventative and curative fungicides; Crop Production/Industries.
Ano: 2006
URL: http://purl.umn.edu/10186

MODELING THE EFFECT OF SPATIAL EXTERNALITIES ON INVASIVE SPECIES MANAGEMENT
Provedor de dados: 31
Autores: McKee,   Gregory J.
Changes in production conditions associated with biological invasions can be complex. As a result, modeling invasive species management decisions can be difficult.  Modeling these decisions is further compounded by externalities associated with spatial relationships among growers.  In order to calculate optimal management decisions, an accurate bioeconomic model of the feedback between grower decisions and the new biological interactions created by an invasive species population is needed.  In this paper, a bioeconomic model is used to explicitly analyze how externalities caused by spatial relationships among agricultural producers affect optimal invasive species management decisions.  The example of the coordinated greenhouse whitefly management in the...
Tipo: Working or Discussion Paper
Palavras-chave: Invasive species; Strawberry; Greenhouse whitefly; Externality; Optimal management.; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/23626

A Dynamic Principal-Agent Model of Human-Mediated Aquatic Species Invasions
Provedor de dados: 31
Autores: MacPherson,   Alexander J.; Moore,   Rebecca; Provencher,   Bill.
This paper presents a dynamic principal-agent model of aquatic species invasions in which a manager, concerned about the spread of invasive species across lakes by boaters, sets interseasonal management controls on a lake-by-lake basis, and boaters make a series of intraseasonal trip decisions to maximize random utility during the course of the season, conditional on the controls imposed by the manager. The results of a simulated invasion of Eurasian watermilfoil (Myriophyllum spicatum) highlight interesting aspects of the optimal management policies under two different management objectives: maximizing boater welfare and minimizing milfoil spread.
Tipo: Journal Article
Palavras-chave: Invasive species; Random utility model; Eurasion watermilfoil; Dynamic optimiza-tion; Principal-agent; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/10189

Exotic Forest Insects and Residential Property Values
Provedor de dados: 31
Autores: Holmes,   Thomas P.; Murphy,   Elizabeth A.; Bell,   Kathleen P.
This paper presents a case study of the economic damages to homeowners in a northern New Jersey community due to an exotic forest insect--the hemlock woolly adelgid. Hedonic property value methods are used to estimate the effect of hemlock health on property values. A statistically significant relationship between hemlock health and residential property values is established. Moreover, there are some signs of spillover impacts from hemlock decline, as negative effects are realized on the parcels where the declining hemlock stands are located as well as on neighboring properties. These results give some indication of the benefits of potential control programs and strategies and also show support for community- or neighborhood-based programs in residential...
Tipo: Journal Article
Palavras-chave: Invasive species; Economic impacts; Hedonic property values; General spatial model; Land Economics/Use.
Ano: 2006
URL: http://purl.umn.edu/10187

Analysis of Farm Household Preferences in the Management of Invasive Species: The Case of Miconia in Hawaii
Provedor de dados: 31
Autores: Chan-Halbrendt,   Catherine; Yang,   Fang; Thomas,   Lynna; Pant,   Archana.
A major threat to Hawaii's ecosystem is the spread of invasive plant species. One such species is Miconia calvescens. Given that this plant was originally introduced to Hawaii by the horticulture industry and has negative effects on agricultural productivity, it is logical to find the farm households' preference for the control of Miconia. Using Conjoint Choice Experiment methodology, this study designed a survey to measure farm households' preferences for Miconia calvescens control program attributes. Results of the surveys indicate that the farm households are willing to support Miconia control programs if they prevent severe soil erosion and loss of biodiversity.
Tipo: Journal Article
Palavras-chave: Miconia; Invasive species; Hawaii; Farmers; Conjoint Choice Experiment; Valuation; Crop Production/Industries.
Ano: 2007
URL: http://purl.umn.edu/8189

Valuing the control of red imported fire ants in Australia using choice modelling
Provedor de dados: 31
Autores: Rolfe,   John; Windle,   Jill.
Invasive species create particular challenges for policy makers .Some deliberately introduced species contribute significantly to agricultural production and other purposes. However, many invasive weed and animal pests generate substantial costs through impacts on agricultural production, biodiversity, ecosystem services, infrastructure and communities.   An aggressive ant species, the red imported fire ant was introduced by accident to Australia. Infestations were found in Brisbane in February 2001. Modelling suggested that the pest could invade half of Australia within 35 years if it were not controlled.). Control of the fire ant has reduced the rate of new discoveries but the ant was still not eradicated by 2009.    The benefits of controlling red...
Tipo: Report
Palavras-chave: Invasive species; Red imported fire ants; Choice modelling experiments; Non-market valuation.; Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 2009
URL: http://purl.umn.edu/94940

Economics of Cogongrass Control in Slash Pine Forests
Provedor de dados: 31
Autores: Alavalapati,   Janaki R.R.; Jose,   Shibu; Stainback,   G. Andrew; Matta,   Jagannadha R.; Carter,   Douglas R.
Cogonagrass  (Imperata Cylindrica), an invasive weed, is a threat to slash pine forests.  Using a dynamic optimization model, we estimated the impact of cogongrass on the profitability of slash pine forestry under four scenarios:  no threat of cogongrass infestation; infestation is uncertain, and no control measures are taken; infestation is uncertain, but control measures are undertaken by one landowner but not the neighbors; and infestation is uncertain, and control measures are undertaken by everyone.  Results indicate that annual net returns per acre under each scenario, respectively, are $25.30, $16.97, $13.89, and $17.38. Results suggest fostering a cooperative behavior among landowners is desirable.
Tipo: Journal Article
Palavras-chave: Cogongrass; Infestation; Invasive species; Productivity; Profitability; Q0; Q2.
Ano: 2008
URL: http://purl.umn.edu/37121

Forest Product Trade Impacts of an Invasive Species: Modeling Structure and Intervention Trade-Offs
Provedor de dados: 31
Autores: Prestemon,   Jeffrey P.; Zhu,   Shushuai; Turner,   James A.; Buongiorno,   Joseph; Li,   Ruhong.
Asian gypsy and nun moth introductions into the United States, possibly arriving on imported Siberian coniferous logs, threaten domestic forests and product markets and could have global market consequences. We simulate, using the Global Forest Products Model (a spatial equilibrium model of the world forest sector), the consequences under current policies of a wide-spread, successful pest invasion, and of plausible trading partner responses to the successful invasion. We find that trade liberalization would have a negligible effect on U.S. imports of Siberian logs and, consequently, on the risk of a pest invasion. But, if it happened, possibly through trade in other commodities, a successful and widespread pest invasion would have large effects on...
Tipo: Journal Article
Palavras-chave: Asian gypsy moth; Trade; Invasive species; Welfare; Spatial equilibrium model; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/10188

Stepping stones for biological invasion: A bioeconomic model of transferable risk
Provedor de dados: 31
Autores: Warziniack,   Travis; Finnoff,   David C.; Bossenbroek,   Jonathan; Shogren,   Jason F.; Lodge,   David.
Herein we model the widespread dispersal and management of an invasive species as a weak-link public good. The risk of introduction is driven in part by economic activity, is influenced by policies directed at the risk, and economic activity responds/adapts to the risk. Framed around recent introductions and rapid spread of dreissenid mussels in the Western United States, we find three key results. First, partial equilibrium estimates of welfare loss are significantly overestimated relative to general equilibrium estimates. If ecosystem services and market goods are substitutes the partial equilibrium bias is greater than if they are compliments. Second, well-intended policies do not necessarily reduce overall risk; risk reduction actions can transfer risk...
Tipo: Conference Paper or Presentation
Palavras-chave: Bioeconomic; Invasive species; Risk; Weak-link; Welfare; Environmental Economics and Policy; Risk and Uncertainty; Q2; Q26; Q57.
Ano: 2010
URL: http://purl.umn.edu/60957

Prioritizing Invasive Species Threats Under Uncertainty
Provedor de dados: 31
Autores: Moffitt,   L. Joe; Osteen,   Craig D.
Prioritizing exotic or invasive pest threats in terms of agricultural, environmental, or human health damages is an important resource allocation issue for programs charged with preventing or responding to the entry of such organisms. Under extreme uncertainty, program managers may decide to research the severity of threats, develop prevention or control actions, and estimate cost-effectiveness in order to provide better information and more options when making decisions to choose strategies for specific pests. We examine decision rules based on the minimax and relative cost criteria in order to express a cautious approach for decisions regarding severe, irreversible consequences, discuss the strengths and weaknesses of these rules, examine the roles of...
Tipo: Journal Article
Palavras-chave: Invasive species; Decision criteria; Uncertainty; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/10168

Optimal investment in prevention and control of a potential invader: the case of zebra mussels in Florida waterways
Provedor de dados: 31
Autores: Adams,   Damian C.; Lee,   Donna J.; Rossi,   Frederick J.
The probability of a severe infestation ranges from 2% to 98% depending on investment in monitoring, prevention, and response technology. Given the estimated potential for economic damages, preliminary results indicate that prudent investment in prevention and early response net a present value net return of $10 million over 20 years.
Tipo: Conference Paper or Presentation
Palavras-chave: Invasive species; Bio-pollutant; Control cost; Cost transfer; Surface water; Risk; Environmental Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/34933

Economic Impact and Trade Implications of the Introduction of Black Sigatoka (Mycosphaerella figiensis) into Puerto Rico
Provedor de dados: 31
Autores: Alamo,   Carmen I.; Evans,   Edward A.; Brugueras,   Alba; Nalampang,   Sikavas.
This article addresses the issues of the potential impacts of the introduction of black sigatoka into Puerto Rico under situations in which the government assists growers in managing the spread of the disease, with and without prohibitions on imports of plantains and bananas.  An equilibrium displacement model is used to quantify the impact of black sigatoka.  The results indicate that under both scenarios the net economic benefits to society were negative.  Over the long term, the government would be well-advised to invest in research to develop plantain and banana varieties that are resistant to black sigatoka.
Tipo: Journal Article
Palavras-chave: Banana; Black sigatoka (Mycosphaerella fijiensis); Economic impact analysis; Equilibrium displacement model; Invasive species; Plantain; Q17; Q18.
Ano: 2007
URL: http://purl.umn.edu/43218

Asymmetric intraguild predation of Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) on a native Coccinellidae guild
Provedor de dados: 92
Autores: Castro-Guedes,Camila Fediuk de; Almeida,Lúcia Massutti de; Moura,Mauricio Osvaldo.
Abstract Harmonia axyridis is an exotic species that can cause serious impacts on native biodiversity in areas where it is introduced to act as a biological control agent. This predator is often involved with intraguild predation, in most cases with aphids predators. Here, we report the results of experiments designed to understand the outcome of the invasion of H. axyridis on native coccinellid aphidophagous guilds using intraguild predation as a theoretical framework. Tests were conducted to determine the interactions between 1st and 4th instars larvae and H. axyridis adults, with Cycloneda sanguinea, Cycloneda pulchella, Eriopis connexa and Hippodamia convergens larvae, as well as eggs predation rate. Two treatments were used: absence and presence of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aphids; Biological control; Cinara atlantica; Invasive species; Non-target organisms; Predator.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000100202

Occurrence and damages of Danothrips trifasciatus (Thysanoptera, Thripidae) on Calophyllum brasiliense (Clusiaceae) in Brazil
Provedor de dados: 92
Autores: Thomazini,Marcílio José; Lima,Élison Fabrício Bezerra.
Occurrence and damages of Danothrips trifasciatus (Thysanoptera: Thripidae) on Calophyllum brasiliense (Clusiaceae) in Brazil. Danothrips trifasciatus Sakimura, 1975 (Thysanoptera, Thripidae) is recorded for the first time in Brazil, in the municipality of Garça, São Paulo state. Individuals were collected in April 2011 damaging young leaves of guanandi, Calophyllum brasiliense Cambess. (Clusiaceae), forest species of increasing importance in Brazil. Future studies involving aspects on biology and population dynamics of the thrips in this plant species need to be carried out, in order to establish its potential economic importance to guanandi.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Description; Insect pest; Invasive species; Native forest species.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262014000300013

Harmonia axyridis: a threat to Brazilian Coccinellidae?
Provedor de dados: 92
Autores: Martins,Camila B. C.; Almeida,Lúcia M.; Zonta-de-Carvalho,Regina C.; Castro,Camila F.; Pereira,Rosylaine A.
Harmonia axyridis (Pallas) (Coleoptera, Coccinellidae) is a polyphagous Asian species, well-known as a classical biological control agent of aphids around the world, introduced probably accidentally in Brazil, sampled for the first time in 2002. It is an important intraguild predator, competing for food with native coccinellids. It was studied H. axyridis alimentary sources and host plants, its abundance compared with native and established species, the influence of abiotic factors and the seasons over the abundance of H. axyridis throughout one year, and discussed the mechanisms which influence the displacement of species. Harmonia axyridis was found in 38 plant species, among them 20 were new records, feeding on 20 aphid species, eight of them new...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aphididae; Intraguild predation; Invasive species; Native species.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262009000400018

A morphological reappraisal of the immature stages and life history of Elachista synethes Meyrick (Lepidoptera, Elachistidae), an Australian leaf miner alien to Chile
Provedor de dados: 92
Autores: Vargas,Héctor Andrés; Brito,Rosângela; Basilio,Daniel Silva; Moreira,Gilson Rudinei Pires.
ABSTRACT Elachista synethes was recently recognized as an alien species in northern Chile, where its larvae mine the rescue grass Bromus catharticus (Poaceae). In order to provide the necessary information to allow field detection of E. synethes during early ontogeny, we conducted a morphological reappraisal of the immature stages of this leaf-miner moth, based on light and scanning electron microscopy, including the first descriptions of the egg and the first-instar larva. This is the first report of the existence of an apodal early larva for a species of Elachista Treitschke. The legs and prolegs are absent in the first two instars, but are well developed in the last two. Additional observations on the life history are also provided, including a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bromus catharticus; Elachistinae; Invasive species; Neotropical region.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000400265

New geographical records and key to the species of Eumerus Meigen, 1823 (Diptera, Syrphidae) introduced into the Americas and Hawaii
Provedor de dados: 92
Autores: Garcete-Barrett,Bolívar R.; Morales,Mírian N.; Hauser,Martin; Smit,John T.; González,Luis; López,María Bernarda Ramírez De; Arias,Osmar; Adorno,Marcial; Sormanti,Gerald; Mereles,Adriana.
Abstract Eumerus Meigen, 1823 is a very speciose genus of flower flies from the Eastern Hemisphere. Several reports of introduced species of this genus in the Americas have been recorded since early in the twentieth century, with a present list of six species recorded to date from the Americas and the US territory of Hawaii. In this paper we give new geographical records for the African-native species Eumerus obliquus (Fabricius, 1805), which reflect the expansion of this fly through Brazil and Paraguay along the last twenty years. At the same time, we report a second species from Paraguay, Eumerus aurifrons (Wiedemann, 1824), being this the first Western Hemisphere record for this Asian-native species. We finally provide an identification key to all of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hover flies; Identification key; Invasive species; Pest insects.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000100211

Identification key for drosophilid species (Diptera, Drosophilidae) exotic to the Neotropical Region and occurring in Brazil
Provedor de dados: 92
Autores: Yuzuki,Keven; Tidon,Rosana.
Abstract Thirteen species of drosophilid exotic to the Neotropical Region are recorded in Brazil, and some of them are highly invasive and threaten significantly fruit cultures. We provide an illustrated key for identifying these species, and briefly discuss their taxonomic status, distribution, and occurrence in the Neotropics. The key should not only support newcomers to the study of Drosophila but also facilitate their identification by those interested in insects associated with cultivated areas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological invasions; Drosophila; Invasive species; Scaptodrosophila; Zaprionus.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000100205

Will the Convention on Biological Diversity put an end to biological control?
Provedor de dados: 92
Autores: van Lenteren,Joop C.; Cock,Matthew J. W.; Brodeur,Jacques; Barratt,Barbara I. P.; Bigler,Franz; Bolckmans,Karel; Haas,Fabian; Mason,Peter G.; Parra,José Roberto P.
Will the Convention on Biological Diversity put an end to biological control? Under the Convention on Biological Diversity countries have sovereign rights over their genetic resources. Agreements governing the access to these resources and the sharing of the benefits arising from their use need to be established between involved parties. This also applies to species collected for potential use in biological control. Recent applications of access and benefit sharing principles have already made it difficult or impossible to collect and export natural enemies for biological control research in several countries. If such an approach is widely applied it would impede this very successful and environmentally safe pest management method based on the use of...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: ABS; Biological control; CBD; Exotic natural enemies; Invasive species; Legislation; Non-monetary benefit sharing.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000100001

Is Drosophila nasuta Lamb (Diptera, Drosophilidae) currently reaching the status of a cosmopolitan species?
Provedor de dados: 92
Autores: Vilela,Carlos Ribeiro; Goñi,Beatriz.
ABSTRACT In early March 2015, three males and two females of one unknown species of Drosophila were collected from a compost pile and some garbage cans in the west region of the city of São Paulo, state of São Paulo, Brazil. Morphologically it is easily identified by the presence of the following conspicuous features: a brownish dorsal stripe along pleura, an entirely iridescent silvery-whitish frons when seen directly from the front, and a row of cuneiform setae on anteroventral side of femur of foreleg; the former two traits being more evident in males. The species was easily reared in a modified banana-agar medium and two isofemale lines were established allowing to obtain mitotic cells showing a diploid chromosome number of 2n = 8. Based both on...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Karyotypes; Immigrans group; Invasive species; Nasuta subgroup; Terminalia.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000400346

The potential of different fruit species as food for Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae)
Provedor de dados: 94
Autores: Guedes,Camila Fediuk de Castro; Almeida,Lúcia Massutti de.
Harmonia axyridis was detected for the first time in Brazil in 2002. Since then, it has been recorded from the South to the Midwest of the country. Until now, almost all the registered cases were associated with the presence of aphids, its preferred source of food. Due to the occurrence of this species in areas of fruit growing in the South and Southeast of Brazil, the aim of this study was to analyze the preference and use of three different cultivars of fruit. The tests were set at 25ºC ± 1ºC, RH 70% ± 10%, and in a photophase of 12 h and with apples (Gala and Fuji), grapes (Niágara and Rubi), and pears (Williams and Asian). In the undamaged fruit experiment, the insects did not cause any noticeable damage. In the damaged and undamaged fruit experiment,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apple; Food preference; Grape; Invasive species; Pear.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000400013

Embryonic and larval development of the topmouth gudgeon, Pseudorasbora parva (Teleostei: Cyprinidae)
Provedor de dados: 103
Autores: Zhu,Dongmei; Yang,Kun; Sun,Ning; Wang,Weimin; Zhou,Xiaoyun.
ABSTRACT The topmouth gudgeon, Pseudorasbora parva (Temminck &amp; Schlegel, 1842), is a small cyprinid fish that inhabits the littoral zones of freshwater habitats throughout Asia and Europe. It is regarded as an invasive species in Europe, but in its native range, in China, as food and as an environmental bio-indicator. In this study, the embryonic and larval development of P. parva was investigated for the first time. The eggs of P. parva are transparent, adhesive and elliptical. The mean size of fertilized eggs was (1.63×1.31) ± 0.04 mm. From fertilization to hatching, embryonic development could be divided into eight stages and 34 phases, and the incubation period lasted for 109.25 hours at 24 ± 1 °C. Newly hatched larvae were 4.1 ± 3 mm in length,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Embryogenesis; Invasive species; Larval development.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100332

The non-indigenous bryozoan Triphyllozoon (Cheilostomata: Phidoloporidae) in the Atlantic: morphology and dispersion on the Brazilian coast
Provedor de dados: 103
Autores: Almeida,Ana C.S.; Souza,Facelucia B.C.; Gordon,Dennis P.; Vieira,Leandro M.
ABSTRACT Bryozoans constitute an important component of marine-fouling communities of anthropogenic substrata. Many species have been reported as exotic or widespread around the world, typically in ports and harbors of non-polar regions. Here we present the first record of a species of the bryozoan Triphyllozoon in the Atlantic Ocean. Triphyllozoon arcuatum (MacGillivray, 1889), described originally from Australia, is reported herein from natural substrata in Singapore and natural and artificial substrata in Brazil. Although easily recognizable, the species has not been previously reported from anywhere else in the Atlantic. In the latter instance, the species was collected during monitoring of the invasive scleractinian corals Tubastraea spp. on an oil...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioinvasion; Brazil; Bryozoa; Invasive species; Oil platform.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000600476

The puzzling occurrence of the upside-down jellyfish Cassiopea (Cnidaria: Scyphozoa) along the Brazilian coast: a result of several invasion events?
Provedor de dados: 103
Autores: Stampar,Sergio N.; Gamero-Mora,Edgar; Maronna,Maximiliano M.; Fritscher,Juliano M.; Oliveira,Bruno S.P.; Sampaio,Cláudio L.S.; Morandini,André C.
ABSTRACT The massive occurrence of jellyfish in several areas of the world is reported annually, but most of the data come from the northern hemisphere and often refer to a restricted group of species that are not in the genus Cassiopea. This study records a massive, clonal and non-native population of Cassiopea and discusses the possible scenarios that resulted in the invasion of the Brazilian coast by these organisms. The results indicate that this jellyfish might have invaded the Brazilian coast multiple times.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Invasive species; Jellyfish bloom; Medusa; Non-native species.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100324

Predation by Rattus norvegicus on a native small mammal in an Araucaria araucana forest of Neuquén, Argentina
Provedor de dados: 97
Autores: SHEPHERD,JOHN D; DITGEN,REBECCA S.
Few previous studies document Rattus predation as a mechanism of impact on native small mammals. In a mixed Araucaria araucana (Molina) Koch -Nothofagus forest in Parque Nacional Lanín in southwestern Neuquén Province, Argentina, we discovered the remains of long-clawed mice, Chelemys macronyx Thomas, cached in a burrow of Rattus norvegicus Berkenhout. We discuss this evidence of predation in light of Rattus biology and invasion ecology. Predation on native small mammals by invasive rats is easily underestimated or overlooked and deserves more careful attention.
Tipo: Journal article
Palavras-chave: Argentina; Chelemys macronyx; Invasive species.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2012000200001

Genetic, morphological, and chemical patterns of plant hybridization
Provedor de dados: 97
Autores: López-Caamal,Alfredo; Tovar-Sánchez,Efraín.
Natural hybridization is a frequent phenomenon among vascular plants. Hybridization is considered an important evolutionary force since it may lead to (1) an increase of the intraspecific genetic diversity of the participating populations, (2) the creation of new species, (3) species extinction through genetic assimilation, and (4) the generation of highly invasive genotypes. Because of the importance of plant hybridization in evolution, it is of great importance to accurately identify hybrid individuals. In this review, we give a general historical background of the study of plant hybridization. Also, we review some of the tools employed for hybrid recognition and their pattern of expression in hybrid individuals (morphological, chemical, chromosome...
Tipo: Journal article
Palavras-chave: Chromosome number; DNA fingerprinting; Hybrid performance; Hybrid phenotype; Invasive species; Secondary metabolites.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2014000100015

The ecology of Egeria densa Planchón (Liliopsida: Alismatales): A wetland ecosystem engineer?
Provedor de dados: 97
Autores: YARROW,MATTHEW; MARÍN,VÍCTOR H; FINLAYSON,MAX; TIRONI,ANTONIO; DELGADO,LUISA E; FISCHER,FERNANDA.
Egeria densa Planchón is considered an invasive species in continental aquatic systems in Chile. Its original geographical distribution was limited to the subtropical regions of Brazil, Argentina and Uruguay. Its fast growth and dense canopy-forming habit are associated with the clear water state of shallow water continental ecosystems. As a dominant species in many of the systems in which it occurs, E. densa behaves as an ecosystem engineer by preventing the re-suspension of sediments and controlling the growth of phytoplankton by removing nutrients from the water column. At the same time, this invasive species produces unwanted effects such as: (1) clogging waterways and hydroelectric turbines, (2) out-competing native vegetation, and (3) negatively...
Tipo: Journal article
Palavras-chave: Egeria densa; Ecosystem engineer; Invasive species.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2009000200010

First record of the invasive medusa Blackfordia virginica (Hydrozoa: Leptomedusae) in the Río de la Plata estuary, Argentina-Uruguay
Provedor de dados: 97
Autores: GENZANO,GABRIEL; MIANZAN,HERMES; ACHA,EDUARDO M; GAITÁN,ESTEBAN.
Blackfordia virginica is a well-known invasive medusa inhabiting estuarine areas. It was recently detected in northern Argentina, constituting the first record of invasive hydromedusa for the Argentine Sea. In this work more than 1,500 plankton samples in the southwestern Atlantic Ocean (34-55º S) from 1983 to 2000 were analyzed. More than 5,000 specimens per sample of B. virginica were found in Río de la Plata estuary for the first time in February 2000. This river is one of the large waterways of South America with an intense nautical traffic and several exotic species has been recorded here, mainly due to trans-oceanic shipping traffic. It is important to point out that we found medusae of both sexes (therefore this species could be introduced in either...
Tipo: Journal article
Palavras-chave: Hydromedusae; Invasive species; Estuary; South western Atlantic Ocean.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000200011

Evaluating taxonomic homogenization of freshwater fish assemblages in Chile
Provedor de dados: 97
Autores: Vargas,Pamela V; Arismendi,Ivan; Gomez-Uchida,Daniel.
BACKGROUND: Pervasive introductions of non-native taxa are behind processes of homogenization of various types affecting the global flora and fauna. Chile's freshwater ecosystems encompass a diverse and highly endemic fish fauna that might be sensitive to the introduction of non-native species, an ongoing process that started two centuries ago, but has to date received little attention. Using historical (native) and present-day (native and non-native) presence-absence data sets of compositional similarity, our goal was twofold: (1) evaluate patterns of taxonomic homogenization at various spatial scales and (2) identify clusters of widely versus narrowly distributed species to assess their relative role in compositional changes. We expect that non-native...
Tipo: Journal article
Palavras-chave: Taxonomic homogenization; Taxonomic differentiation; Endemic fishes; Conservation; Management; Invasive species.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2015000100016

NEW DEPARTMENTAL RECORDS FOR Digitonthophagus Gazella (COLEOPTERA: SCARABAEIDAE) IN COLOMBIA
Provedor de dados: 37
Autores: ARI NORIEGA,JORGE; MORENO,JULIANA; OTAVO,SAMUEL; CASTAÑO,EDUARDO.
The introduced dung beetle Digitonthophagus Gazella was reported for the Caribbean Region of Colombia in the 90's. During a survey carried out along the Magdalena river, new records of the presence of this species were found in the departments of Boyacá, Caldas, Cundinamarca, Santander and Tolima for the first time.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dung beetle; Invasive species; Dispersion.
Ano: 2012
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2012000100014

The necessity of management in a lake of the Atlantic Forest biodiversity hotspot: nitrogen levels connected to a persistent bloom of Cylindrospermopsis raciborskii
Provedor de dados: 39
Autores: Figueredo,Cleber Cunha; Rückert,Gabriela von; Giani,Alessandra.
ABSTRACT Conservational studies of the threatened Atlantic Forest biome are frequently restricted to terrestrial ecosystems. We know little about the water bodies, specially considering that this biome covers the third largest system of lakes in Brazil. Some of these lakes are located inside the protected "Rio Doce State Park", but many others are found outside this reserve. These external lakes are seldom studied, but understanding their response to human activities is essential for the conservation and the protection of the lakes inside the Park. We evaluated the effects of degradation in a lake outside the Park, which shows a constant bloom of the toxic invasive cyanobacteria Cylindrospermopsis raciborskii. Phytoplankton, climate and physico-chemical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cylindrospermopsis raciborskii; Invasive species; Lake conservation; Phytoplankton; Water deterioration.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000200222

Seed bank composition in a secondary forest in the Lower Delta of the Paraná River (Argentina)
Provedor de dados: 39
Autores: Kalesnik,Fábio; Sirolli,Horacio; Collantes,Marta.
The native forests once occupying the coastal levees of the Lower Delta islands of the Paraná River (in Argentina) have been replaced by commercial forests. Many of those forests have been abandoned, resulting in secondary forest formation that is subject to numerous invasive exotic species. A priori observations suggest that successional trends do not lead to recovery of the original forest. The aim of the present study was to analyze the role of invasive exotic species in these environments and the likelihood of recovery of the original forest cover. Therefore, we examined the composition of the seed bank and of the standing vegetation, as well as the population structure of tree species. Secondary forests are described as being in an intermediate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chinese privet (Ligustrum sinense); Invasive species; Post-abandonment regeneration; Riparian forest; Seedling emergence.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100006

Invasion and establishment of Ceratium furcoides (Dinophyceae) in an urban lake in Porto Alegre, RS, Brazil
Provedor de dados: 39
Autores: Silva,Luiza Nicoleite da; Medeiros,Caroline Modena de; Cavalcante,Kaoli Pereira; Cardoso,Luciana de Souza.
ABSTRACT Ceratium furcoides has received attention due its invasive behavior in South America and consequent alterations in local phytoplankton communities. Pedalinhos Lake had been dominated by chlorophytes until 2015, when the first occurrence of this dinoflagellate was detected. In order to investigate the colonization process of this species, we monitored the meteorological variables and phytoplankton abundance of this urban lake on a weekly basis from September 2015 to September 2018. At the beginning of the invasion process (Year 1), a peak density of 10,170 ind.mL-1 was recorded, with a significant decrease to 23 ind.mL-1, indicating an initial, unstable process of adaptation, with notable oscillation and reduction of cyanobacterial blooms. At this...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dinoflagellate; Invasive species; Shallow lake; Subtropical; Southern Brazil.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000400654

Disturbance as a factor in breaking dormancy and enhancing invasiveness of African grasses in a Neotropical Savanna
Provedor de dados: 39
Autores: Gorgone-Barbosa,Elizabeth; Pivello,Vânia R.; Baeza,M. Jaime; Fidelis,Alessandra.
The Cerrado is threatened by wildfires and invasive species. We aimed to evaluate in laboratory conditions whether temperature fluctuation at the soil surface, resulting from the absence of vegetation due to fire, can affect the germination of Urochloa decumbens and U. brizantha, two invasive African grasses. Seeds of both species were submitted to simulations: 1) temperature during fire at 1cm belowground (F); 2) temperature fluctuation at 1cm belowground without vegetation cover for a month (TF); 3) (F) + (TF); 4) control at 25ºC. After treatments, seeds were put to germinate at 25ºC for 40 days. We had four replicates per treatment and three temporal replicates. We compared germination percentage and the mean germination time among treatments using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Fire; Germination percentage; Invasive species; Physiological dormancy; Seed dormancy; Temperature fluctuation; Urochloa brizantha; Urochloa decumbens.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000100131

Are native bees and Apis mellifera equally efficient pollinators of the rupestrian grassland daisy Aspilia jolyana (Asteraceae)?
Provedor de dados: 39
Autores: Maruyama,Pietro K.; Nunes,Carlos E. P.; Vizentin-Bugoni,Jeferson; Gustafsson,Simone; Morellato,Leonor Patricia Cerdeira.
ABSTRACT Most angiosperms rely on animals for pollination, and insects, especially bees, are being the most frequent pollinators. Many native Neotropical plants are frequently visited by the invasive honeybee (Apis mellifera), but its role in the pollination of these plants has been little investigated. We assessed the contribution of various floral visitors, including native bees and the honeybee, on the pollination of a generalist rupestrian grassland daisy, Aspilia jolyana (Asteraceae), in Serra do Cipó, Espinhaço Mountain Range, Brazil. We recorded floral visitors and measured the seed set resulting from one single visitation. We observed a total of 442 visits, mostly by bees, with Bombus pauloensis and Apis mellifera being the most common floral...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bee pollination; Bombus pauloensis; Generalization; Honeybee; Invasive species; Pollination efficacy; Serra do Cipó.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300386

Regional distribution of native and exotic species in levees of the lower delta of the Paraná river - DOI: 10.4025/actascibiolsci.v30i4.5869
Provedor de dados: 3
Autores: Kalesnik, Fabio; UBA/Argentina; Aceñolaza, Pablo; UBA/Argentina.
The distribution and abundance of exotic and native species in levee neo-ecosystems were analyzed. No invasive species were found in unit A; their absence could be explained by the fluvial action of the Paraná river, extraordinary flood episodes and anthropic disturbances. Invasive species associated with the tidal regimen of the de la Plata river were present in units B and C, particularly Chinese privet (L. sinense), green ash (F. pennsylvanica), honey locust (G. triacanthos), Japanese honeysuckle (L. Japonica), blackberry ( Rubus  spp.), box elder (A. Negundo ) and glossy privet (L. Lucidum).Native species showed low recovery values, both at a regional level and within each unit, with the exception of A. The neo-ecosystems with the greater degree of...
Palavras-chave: Wetlands; Lower delta; Neo-ecosystems; Invasive species; “Monte Blanco” species.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5869

Endoparasitic fauna of Serrasalmus spp. (Characidae: Serrasalminae) in a neotropical floodplain
Provedor de dados: 3
Autores: Casali, Guilherme Pomaro; Takemoto, Ricardo Massato.
Floodplains systems present complex biodiversity and upper Paraná river floodplain retains a wide variety of terrestrial and aquatic species. Serrasalmus marginatus (nonindigenous species) and Serrasalmus maculatus (native species) are part of this biodiversity component and can be infected by trophic transmission. In order to understand the ecological processes within the upper Paraná river floodplain, endoparasite fauna of those two hosts species were analyzed, considering prevalence, abundance, intensity and richness variables to determine this relationship. So, abundance of acantocephalan Echinorhynchus sp. was positively correlated to S. marginatus length, while Kritskyia annakohnae (Monogenea) prevalence and S. marginatus length presented a negative...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical floodplain; Parasite ecology; Invasive species; Piranha.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/28592

Early ontogeny of Clarias gariepinus (Siluriformes, Clariidae) and aspects of its invasion potential in natural freshwater environments - doi: 10.4025/actascibiolsci.v35i3.12471
Provedor de dados: 3
Autores: Kipper, Darlon; Universidade Estadual de Maringá; Taguti, Tatia Leika; Universidade Estadual de Maringá; Bialetzki, Andréa; Universidade Estadual de Maringá; Makrakis, Maristela Cavicchioli; Universidade Estadual do Oeste do Paraná; Baumgartner, Gilmar; Universidade Estadual do Oeste do Paraná; Sanches, Paulo Vanderlei; Universidade Estadual do Oeste do Paraná.
This study aimed to describe the early development of Clarias gariepinus, a species that has been introduced into various watersheds worldwide, in order to help the identification of its eggs, larvae and juveniles in natural environments. The material used was obtained via induced spawning during 1999. After spawning, the periodicity of sampling varied according to ontogenic development. We analyzed 12 eggs, 146 larvae and 6 juveniles. Newly fertilized eggs are spherical, with a double membrane, the density of which varies. Initially the larvae have little pigmentation but this intensifies during development. They have four pairs of well-developed barbels, an elongated body, long dorsal and anal fins, no adipose fin and vesicles surrounding the finfold and...
Tipo: Desenvolvimento ontogênico
Palavras-chave: 2.05.00.00-9 african catfish; Invasive species; Larvae; Juvenile of fish Ecologia.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/12471

Reproductive phenology of the American Bullfrog in subtropical Brazil: photoperiod as a main determinant of seasonal activity
Provedor de dados: 42
Autores: MEDEIROS,CAMILA I.; BOTH,CAMILA; KAEFER,IGOR L.; CECHIN,SONIA Z.
ABSTRACT The North American bullfrog Lithobates catesbeianus continues to invade ecosystems worldwide, potentially causing population declines and even extinctions. Within its native distribution, bullfrogs show prolonged reproductive seasons and high fertility. However, data on breeding biology of bullfrogs ex-situ in invaded localities mainly comes from anecdotal reports. Understanding how invasive species are adjusting their life histories to new colonized environments is important for conservation purposes. Here we describe temporal and spatial abundance, calling activity, spawning and tadpole distribution of bullfrogs in southern Brazil. Eighteen samplings occurred during one year. The abundance of individuals was positively related to longer...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeding; Invasive species; Lithobates catesbeianus; Microhabitat; Recruitment; Spatial distribution.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501909

Occurrence of the Indo-Pacific freshwater prawn Macrobrachium equidens Dana 1852 (Decapoda, Palaemonidae) on the coast of Brazilian Amazonia, with notes on its reproductive biology
Provedor de dados: 42
Autores: Maciel,Cristiana R; Quadros,Manoel L; Abrunhosa,Fernando; Bastos,Sandra; Schneider,Horacio; Sampaio,Iracilda.
The freshwater prawn Macrobrachium equidens, which is native species of the Indo-Pacific Region, was recorded for the first time on the Amazon coast of Brazil. This species was found to inhabit the same environment as two native Macrobrachium species, M. amazonicum and M. acanthurus, and is morphologically very similar to the latter. The identification of the species was confirmed by the genetic analysis of sequences of the mitochondrial Cytochrome Oxidase (COI) gene. A detailed description of the morphological features and reproductive biology of M. equidens in this new environment is presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacean; Caeté Estuary; Invasive species; Mitochondrial COI gene; Reproductive biology.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000200013

Development of a real-time PCR assay for the detection of the golden mussel ( Limnoperna fortunei , Mytilidae) in environmental samples
Provedor de dados: 42
Autores: PIE,MARCIO R.; STRÖHER,PATRÍCIA R.; AGOSTINIS,ANDRÉ O.; BELMONTE-LOPES,RICARDO; TADRA-SFEIR,MICHELLE Z.; OSTRENSKY,ANTONIO.
ABSTRACT The golden mussel, Limnoperna fortunei, is among the most devastating invasive species in freshwater habitats worldwide, leading to severe environmental disturbances and economic losses. Therefore, management efforts would be greatly improved by methods that efficiently detect and quantify the abundance of the golden mussel in freshwater habitats, particularly in early stages of colonization. In this study, we describe a highly-sensitive real-time PCR assay targeting a 100-bp region of the COI mitochondrial gene of the golden mussel. The method was able to detect as little as 0.225 pg of target DNA. This assay represents an important contribution to surveillance methods, as well as to optimize field measures to contain and manage populations of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: EDNA; Invasive species; Environmental DNA; Molecular identification.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301041

Evaluation of food baits to capture Drosophila suzukii in the southern of Brazil
Provedor de dados: 42
Autores: WOLLMANN,JUTIANE; SCHLESENER,DANIELE C.H.; VIEIRA,JÚLIA G.A.; BERNARDI,DANIEL; GARCIA,MAURO S.; GARCIA,FLÁVIO R.M.
Abstract: Drosophila suzukii is one of the main pests of small fruits in the world. An effective monitoring is fundamental to detect the presence of the fly and to predict the infestation of fruits in new areas. We evaluated the food baits Ceratrap®, Torula®, Biofruit®, Suzukii Trap®, apple cider vinegar, and a homemade mixture comprising wine, vinegar and molasses (WVM) for D. suzukii attractiveness, and if reproductive stage affects females attraction and capture in the different baits. Bait selectivity of non-target insects was assessed. The preference of adults between ripe blackberry fruit and the food baits was also evaluated. Adults showed a higher attraction (61.97% of the captured insects) to the WVM mixture than to Ceratrap® (1.32%), Torula®...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Invasive species; Spotted wing drosophila; Feeding attractant; Bait; Non-target insects.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300854

Population dynamics and reproductive biology ofAchatina fulica Bowdich, 1822 (Mollusca, Gastropoda) in Salvador - Bahia
Provedor de dados: 49
Autores: Silva,Eder Carvalho da; Omena,Elianne Pessoa.
The risks following introduction of invasive species are enormous and incalculable. Achatina fulica is considered one of the 100 species of greatest invasive potential, stands out among the land pulmonate snails, mostly for its high reproductive potential that accelerates the process of dispersion, increasing the damages related to health (disease transmission), to economy (crops destruction) and to environment (biodiversity loss). In order to investigate the relationship of the African snail with the environment, trying to relate sexual activity with climatic variables (temperature, rainfall and humidity), a study was conducted on aspects of population dynamics and reproductive biology in Salvador city. The snails were collected by hand, monthly....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioinvasion; Invasive species; Reproductive cycle; Growth; Giant African snail.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000300115

Invasion of the dinoflagellate Ceratium furcoides (Levander) Langhans 1925 at tropical reservoir and its relation to environmental variables
Provedor de dados: 49
Autores: Silva,Lidiane Cristina da; Leone,Isabela Carnielli; Santos-Wisniewski,Maria José dos; Peret,Alberto Carvalho; Rocha,Odete.
Dinoflagellates of the genus Ceratium are chiefly marine but there are rare occurrences in freshwater. In this study we analyze the invasion and progressive establishment of Ceratium furcoides, an exotic species, in the Furnas Reservoir. Samples were taken at 36 points in the reservoir, during the months of March, June, September and December, 2007. Measurements of some physical and chemical variables were simultaneously performed at each site. The occurrence of C. furcoides was registered at 20 sites, with densities varying between 0.57 and 28,564,913.0 ind.m-3. Blooms of this species were recorded in points which were classified as mesotrophic, coinciding with the places receiving high amounts of untreated domestic sewage. C. furcoides density was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Invasive species; Algal blooms; Eutrophication; Reservoir ecology.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000200010

Distribution and biological aspects of the introduced speciesMoina macrocopa (Straus, 1820) (Crustacea, Cladocera) in the semi-arid central region of Argentina
Provedor de dados: 49
Autores: Vignatti,Alicia María; Cabrera,Gabriela Cecilia; Echaniz,Santiago Andrés.
Moina macrocopa is common in eutrophic water bodies. Two subspecies have been described: M. macrocopa macrocopa (Straus, 1820), whose original distribution was restricted to the Old World, and M. macrocopa americanaGoulden, 1968, recorded only in North America. In 1994, the species was found in Bolivia, and in 1997 it was found in the northeast of Argentina. As the specimens belonged to M. macrocopa macrocopa in both cases, the authors suggested that it may have been introduced from the Old World by anthropogenic means. The aim of this study was to assess the distribution of M. macrocopa in La Pampa (Argentina), and provide information on its population characteristics under natural conditions. The species was recorded in six out of more than 100 water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Argentina; Temporary lakes; Cladocera; Moina macrocopa; Invasive species.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000300086

Emergence and establishment of native and non-native species in soils of remnant and converted highland grasslands – southern Brazil
Provedor de dados: 49
Autores: Müller,Helena de Lima; Lopes,Rodrigo Ramos; Hermann,Julia-Maria.
Abstract Native grasslands in the Campos de Cima da Serra, Brazil, are being converted at speed for exotic tree plantations and cropland. The impact of modified and novel soil conditions on the establishment of native grassland species is unknown; establishment of non-native species, deliberately or accidentally introduced, could be favoured. In a common garden composed of fully randomized replicate samples of soils collected from remnant grassland, former cropland and pine plantations, we tested emergence and establishment of five cold-season species: Native low-tussock grass Piptochaetium montevidense (Spreng.) Parodi; native legume Trifolium riograndense Burkart; naturalized low-tussock grass Vulpia bromoides (L.) Gray; low-tussock grass Holcus lanatus...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Seedling emergence; Degraded soil; Native forage species; Invasive species.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000100502

Predation effects of Melanoides tuberculatus Müller 1774) on periphytic biofilm colonization: an experimental approach
Provedor de dados: 49
Autores: Vasconcelos,Janiele França; Barbosa,José Etham de Lucena; Azevêdo,Evaldo de Lira; Azevêdo,Daniele Jovem da Silva; Anacleto,Maria José Pinheiro.
The present study evaluated the predation effects of the gastropod Melanoides tuberculatus on the taxa richness and density of the periphyton community. A laboratory experiment was conducted with two treatments: control (without M. tuberculatus) and with M. tuberculatus, each treatment being replicated four times. For periphyton colonization, glass slides were placed in 3.5 L of water from the environment of the gastropods. The analysis of species richness and density of the periphyton community on these artificial substrates showed significant differences (p &lt;0.05) between treatments. In the treatment with M. tuberculatus, taxa richness and density were lower, with a predominance of Chantrasia macrospora in the last days of the experiment. It follows...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Invasive species; Herbivory; Laboratory experiment; Melanoides tuberculatus; Periphyton.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200096

Ichthyofauna of Marinheiros Island, Patos Lagoon estuary, southern Brazil
Provedor de dados: 49
Autores: Quintela,Fernando; Corrêa,Fabiano; Pinheiro,Rafael Martins; Loebmann,Daniel.
Abstract Marinheiros is the largest island of the estuarine archipelago of Patos lagoon and is considered an area of biological relevance in the coastal region of the extreme south of Brazil. Aiming to contribute to the knowledge on the biodiversity of this important area, we conducted an ichthyofaunistic inventory in the limnic environments of the island. Twenty-seven field trips were performed between April 2015 and May 2017. A total of 12 sites representative of habitats of an intermittent shallow lagoon, intermittent pools and a perennial artificial channel were sampled. Sampling of 2,436 specimens revealed the occurrence of 30 species, including the non-native piscivorous Acestrorhynchus pantaneiro. Characiformes was the most diverse order (18...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acestrorhynchus pantaneiro; Ictiocenose; Invasive species; Neotropical region.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000100302

The role of avian frugivores on germination and potential seed dispersal of the Brazilian Pepper Schinus terebinthifolius
Provedor de dados: 49
Autores: D'Avila,Graziele; Gomes-Jr,Antonio; Canary,Ana Carolina; Bugoni,Leandro.
Frugivorous birds play a key role in seed dispersal and establishment of a range of plant species, including invasive weeds, such as the Brazilian Pepper Schinus terebinthifolius. The potential of seed dispersal of Schinus by birds with varied feeding behaviours was studied through seed-viability tests and germination experiments using seeds obtained from birds in the field and birds kept in captivity. It was found that seeds collected after gut passage in five bird species in the field had higher proportion of germination as well as higher germination rates compared to the control seeds. Viability of seeds ingested by the Blue-and-yellow Tanager Thraupis bonariensis, which mandibulates seeds before ingesting, was significantly lower than control seeds,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Frugivory; Seed germination; Invasive species; Weed species; Restoration.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000300004

Coccidae, Pseudococcidae, Ortheziidae, and Monophlebidae (Hemiptera: Coccoidea) of Espírito Santo, Brazil
Provedor de dados: 49
Autores: Culik,Mark Paul; Martins,David dos Santos; Ventura,José Aires; Peronti,Ana Lúcia Benfatti Gonzalez; Gullan,Penny Jean; Kondo,Takumasa.
New plant hosts are recorded for nine scale insect species recently collected in Espírito Santo, Brazil, and eleven scale insect species are recorded for the first time from the state: Ceroplastes floridensis Comstock, Coccus longulus (Douglas), Coccus viridis (Green), Eucalymnatus tesselatus (Signoret), Pseudokermes sp., Saissetia coffeae (Walker), Phenacoccus madeirensis Green, Pseudococcus jackbeardsleyi Gimpel &amp;amp; Miller, Pseudococcus longispinus (Targioni Tozzetti), Icerya purchasi Maskell, and Icerya genistae Hempel. This is also the first record of Co. longulus in Brazil. Information on the host plants and geographic distribution of the 26 species of scale insects of the families Coccidae, Pseudococcidae, Ortheziidae, and Monophlebidae,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scale insects; Invasive species; Icerya genistae; Biodiversity; Biogeography.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000300006

Assessment of invasive potential of Homalodisca coagulata in western North America and south America
Provedor de dados: 49
Autores: Peterson,A. Townsend; Scachetti-Pereira,Ricardo; Kluza,Daniel A.
The potential of Homalodisca coagulata to invade South America is a question of economic importance, given its potential impact as a disease vector for several crops. We developed ecological niche models for the species on its native geographic distribution in the southeastern United States; we tested the predictivity of the models both on the native distributional area and via projections to California, where the species has long been present as an invasive species. In both cases, tests indicated high statistical significance of predictions. Projection of models to South America indicated little possibility of invasion of southeastern Brazil, where citrus diseases were of concern. However, all models agree in predict-ing great risk of establishment in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecological niche modeling; Invasive species; Xylella fastidiosa; Vector.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032003000100006

Widening the geographical distribution of Pimelodus mysteriosus Azpelicueta 1998 (Siluriformes: Pimelodidae) to the upper Paraná River, with diagnosis for syntopic congeners
Provedor de dados: 49
Autores: Deprá,Gabriel de Carvalho; Ota,Renata Rúbia; Souza,Fagner de; Graça,Weferson Júnio da; Pavanelli,Carla Simone.
Pimelodus mysteriosus Azpelicueta 1998, previously known only from the lower Paraná and Paraguay River basins, has been also recorded in the upper Paraná River floodplain. The only congeners occurring in syntopy with P. mysteriosus in the upper Paraná River basin are P. maculatus and P. ornatus. New diagnostic characters between P. mysteriosus and P. maculatus are provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canal da piracema; Invasive species; Itaipu; Non-native species; Taxonomy.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000300402

The vascular flora and vegetation of Queimada Grande Island, São Paulo State, southeastern Brazil
Provedor de dados: 49
Autores: Kurtz,Bruno Coutinho; Souza,Vinicius Castro; Magalhães,Adriana Melo; Paula-Souza,Juliana de; Duarte,Alexandre Romariz; Joaquim-Jr,Gilberto Oliveira.
Abstract Studies of the vegetation on islands off the coast of southeastern Brazil are still very scarce, despite their importance for assessing, managing, and conserving insular biodiversity. We present here a list of the vascular flora of Queimada Grande Island (QGI; 24°29′10″ S, 46°40′30″ W, 57 ha, 33.2 km from the coast) in southeastern Brazil and describe its phytophysiognomies. The island is covered mainly by Atlantic Forest (Dense Ombrophilous Forest), as well as with rock outcrop and anthropogenic vegetation with herbaceous-shrub phytophysiognomies. QGI showed relatively low species richness (S = 125) when compared to other Brazilian coastal islands. Herbaceous (52) and climbing species (31) predominated on QGI. The richest families were Fabaceae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic Forest; Biodiversity conservation; Coastal islands; Dispersal syndromes; Invasive species; Protected areas.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000400302

The ShearStress importance on the spatial distribution pattern of the invader Limnoperna fortunei in the Upper Paraná River Basin. - An assessment based on the Spatial Distribution Models
Provedor de dados: 49
Autores: Campos,Mônica de Cássia Souza; Peifer,Daniel; Castro,Paulo de Tarso.
The introduction of the golden mussel, Limnoperna fortunei(Dunker, 1857) in South America was related to the discharge of ballast water, with its first record in 1991 in the La Plata River estuary. Since then, the species is spreading throughout the continent, with several economic and ecological negative consequences.  Aim: To model, in the headwaters of Parana River, the spatial distribution ofL. fortunei and to understand the determinants of the current pattern of species distribution and the risk of invasion of areas not yet colonized.  Methods:  The ecological niche of L. fortunei was modeled using the algorithm MAXENT (Maximum Entropy Method) combined with records of occurrence of the bivalve, limnological data and the shear force measured by the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Invasive species; Biological invasions; Niche modeling; Maxent; Ecological requirements.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000100109

First record of Corbicula largillierti (Philippi 1844) in the Paraíba River Basin and potential implications from water diversion of the São Francisco River
Provedor de dados: 49
Autores: Azevêdo,Evaldo de Lira; Barbosa,José Etham de Lucena; Vidigal,Teofânia H. D. A.; Callisto,Marcos; Molozzi,Joseline.
Corbicula largillierti is a native mollusk from China. In Brazil, this species was first recorded in the Pantanal of Mato Grosso. This short communication reports the occurrence of C. largillierti for the first time in the Paraíba river basin (Brazilian semi-arid), and also considers the risk of introduction of other molluscs invaders in this basin due to the diversion of water from the São Francisco River. Densities of individuals ranged from 33 to 65 ind.m-2 (maximum values of 484 ind.m-2) in coarse sediment (gravel, 2-4 mm). The diversion of waters from the São Francisco river can lead to the introduction of new species, enhancing ecological problems in the Paraiba river basin.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Invasive species; Semi-arid; Molluscs; Corbiculidae.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000400401

After 10 years the myth of Crotalaria spp. and dragonflies remains alive
Provedor de dados: 49
Autores: Brito,Joás; Louback-Franco,Nayara; Mendoza,Cristian; Nonato,Flávia; Juen,Leandro; Michelan,Thaisa.
Abstract The struggle to control insect-borne diseases can lead to make rash decisions. For instance, the controversial method of planting of Crotalaria spp. to attract predatory dragonflies can be used to control insect vectors of dengue fever and several other medically significant insect-borne diseases. Nevertheless, there is no scientific support for this assumption. Despite the lack of evidence, in Brazil, there remains a multitude of online articles and grey literature sources still promote Crotalaria planting as a means to prevent dengue fever. Here we discuss the reasons why Odonata would not be attracted by Crotalaria and, therefore, it cannot not be considered as an efficient method for vector control. Finally, the best practice to avoid the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mosquitoes; Tropical diseases; Zika; Invasive species.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000200401

PRESENCIA DEL PEZ LEÓN, PTEROIS VOLITANS (ACTINOPTERYGII: SCORPAENIDAE), EN EL DEPARTAMENTO DE LA GUAJIRA, MAR CARIBE DE COLOMBIA*
Provedor de dados: 50
Autores: Martínez-Víloria,Héctor; Rosado Gómez,Anderson; Acero P.,Arturo.
The red lionfish was captured in the northeast Colombian Caribbean, in "El Yoyo" fishing ground, located in La Guajira peninsula (Riohacha). The Guajira continental shelf, located between Santa Marta and Venezuela, should be a stepping area for lionfish pelagic larvae.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Invasive species; Scorpaenidae; Biodiversity; La Guajira peninsula; Colombia.
Ano: 2011
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612011000200015

COMPOSICIÓN DIETARIA DEL PEZ LEÓN, PTEROIS VOLITANS (PISCES: SCORPAENIDAE), EN SANTA MARTA Y EL PARQUE NACIONAL NATURAL TAYRONA*
Provedor de dados: 50
Autores: Muñoz-Escobar,Laura; Gil-Agudelo,Diego Luis.
The lionfish (Pterois volitans) has established in the Colombian Caribbean coast. Its presence was reported for the first time in continental Colombia in 2009, but its abundance has increased significantly by the end of 2009 and 2010, being now common to find it in the entire Colombian Caribbean. The present study evaluates the diet components of the lionfish in Santa Marta and Tayrona National Park. Five teleost families (Apogonidae, Gobiidae, Serranidae, Clupeidae, and Pomacentridae) and some crustaceans were identified as components of the diet of the lionfish. Some of these organisms belong to families of ecological and economic importance, which can have impacts on populations of local fish as has happened in other latitudes. Consequently, this...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Diet composition; Invasive species; Lionfish; Pterois volitans; Stomach contents.
Ano: 2012
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612012000200012

Behavioral and ecological interactions between reintroduced golden lion tamarins (Leontopithecus rosalia Linnaeus, 1766) and introduced marmosets (Callithrix spp, Linnaeus, 1758) in Brazil's Atlantic Coast forest fragments
Provedor de dados: 52
Autores: Ruiz-Miranda,Carlos Ramon; Affonso,Adriana Gomes; Morais,Marcio Marcelo de; Verona,Carlos Eduardo; Martins,Andreia; Beck,Benjamin B.
Marmosets (Callithrix spp.) have been introduced widely in areas within Rio de Janeiro state assigned for the reintroduction of the endangered golden lion tamarin (Leontopithecus rosalia). The objetives of this study were to estimate the marmoset (CM) population in two fragments with reintroduced golden lion tamarin to quantify the association and characterize the interactions between species. The CM population density (0,09 ind/ha) was higher than that of the golden lion tamarin (0,06 ind/ha). The mean association index between tamarins and marmosets varied among groups and seasons (winter=62% and summer=35%). During the winter, competition resulted in increases in territorial and foraging behavior when associated with marmosets. Evidence of benefits...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecology; Behavior; Golden lion tamarin; Common marmoset; Invasive species; Conservation.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000100012

Seasonal variation in larval density of Limnoperna fortunei (Bivalvia, Mytilidae) in the Iguaçu and Paraná rivers, in the region of Foz do Iguaçu, Paraná, Southern Brazil
Provedor de dados: 52
Autores: Pestana,Débora; Pie,Marcio Roberto; Ostrensky,Antonio; Boeger,Walter Antonio; Andreoli,Cleverson; Franceschi,Francisco; Lagos,Patrícia.
The larval density of the invasive mussel Limnoperna fortunei (Bivalvia, Mytilidae) was monitored from January 2005 to February 2006 at two points along the Paraná and the Iguaçu Rivers, near Foz do Iguaçu, PR, Brazil. The results indicated two density peaks in the Paraná River: a lower peak between March and June and a higher peak in October. In the Iguaçu River, the values were much lower, yet they also showed a peak between September and October. A reduction in the reproductive activity was observed in both the rivers between July and August. The average larval density at the collection point in the Paraná reached 948.5 larvae/m³, with a peak of 2,999.5 larvae/m³ in October. The present study represented the first quantification of the larval density of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Invasive species; Golden mussel; Biofouling; Larval density.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000300023

The effect of temperature and body size on filtration rates of Limnoperna fortunei (Bivalvia, Mytilidae) under laboratory conditions
Provedor de dados: 52
Autores: Pestana,Débora; Ostrensky,Antonio; Boeger,Walter Antonio Pereira; Pie,Marcio Roberto.
The golden mussel (Limnoperna fortunei, Mollusca: Bivalvia) is an invasive species that has been causing considerable environmental and economic problems in South America. In the present study, filtration rates of L. fortunei were determined in the laboratory under different temperatures (10, 15, 20, 25, 28, and 30 ºC) and two types of food (Algamac-2000® and the chlorophycean alga Scenedesmus sp.). There was a statistically significant relationship between time and filtration rates in the experiment using Scenedesmus sp., regardless of temperature. However, this pattern was absent in the experiment using Algamac, suggesting that the relationship between filtration rates and temperature might depend on the size of the filtered particles. In addition, there...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Invasive species; Condition index; Scenedesmus sp.; Algamac-2000®; Environmental impact.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100018

Genetic Variability of the Tomato Leaf Miner (Tuta absoluta Meirick; Lepidoptera: Gelechiidae), in Tunisia, Inferred from RAPD-PCR
Provedor de dados: 117
Autores: Bettaibi,Asma; Mezghani-Khemakhem,Maha; Bouktila,Dhia; Makni,Hanem; Makni,Mohamed.
The tomato leaf miner Tuta absoluta Meyrick has invaded tomato (Solanum lycopersicum L.) crop in Tunisia since 2008 and is representing today a major threat to the production of this crop. In this study, we used the Randomly Amplified Polymorphic DNA-Polymerase Chain Reaction (RAPD-PCR) technology to assess the genetic variability within and among seven populations of T. absoluta, collected on tomato from different regions in Tunisia. Using five RAPD-PCR primers and 108 individuals, 140 polymorphic fragments were recorded. From 335 different RAPD phenotypes generated, 71 were redundant and 264 unique to a specific population. The genetic structure of T. absoluta was investigated using analysis of molecular variance (AMOVA), genetic distances (Fst) and...
Tipo: Journal article
Palavras-chave: Invasive species; Molecular markers; Insect populations; Gene flow.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000200008