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Registros recuperados: 54
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Ability of taxonomic diversity indices to discriminate coastal lagoon environments based on macrophyte communities ArchiMer
Mouillot, David; Gaillard, Sylvain; Aliaume, Catherine; Verlaque, Marc; Belsher, Thomas; Troussellier, Marc; Chi, Thang.
Lagoons are highly productive areas representing more than 50% of the coastline area in Languedoc-Roussillon (South of France, Mediterranean sea). These lagoons are very different in their environmental conditions, human influences, eutrophication levels and aquaculture intensity. Based on macrophyte communities associated with soft substrates, two indices of taxonomic diversity (the "average taxonomic distinctness" (Delta(+)) and the "variation in taxonomic distinctness" (Lambda(+))) were used to discriminate four of these lagoons (Thau, Salse-Leucate, Bages-Sigean and Mauguio). Bages-Sigean presented a significant higher average taxonomic distinctness (p < 0.05) and Salse-Leucate had a significant higher variation in taxonomic distinctness (p <...
Tipo: Text Palavras-chave: Languedoc Roussillon; Exotic species; Human impact; Eutrophication; Biodiversity.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-748.pdf
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Aminocyclopyrachlor: New Option for Trumpet Flower Control in Pastures Planta Daninha
REIS,F.C.; CASON,J.B.; TOLEDO,R.E.B.; SOTOMAYOR,J.F.; FREITAS,M.M.; VICTÓRIA FILHO,R..
ABSTRACT The species Tecoma stans, introduced to Brazil to be cultivated in urban centers as street trees, in parks and gardens, became important pasture weed. The mechanical control of this species is difficult because the plant presents a large number of sprouts when are mowed. Furthermore, the herbicides usually used in pasture have been shown to be inefficient to control it. This research evaluated the trumpet flower control effectiveness using a new herbicide (aminocyclopyrachlor) applied alone in increasing doses to the cut stump for the control of resprouts and mixed with metsulfuron-methyl in applications to intact plant leaves. The experiment with foliar applications used increasing doses of herbicides (aminocyclopyrachlor + metsulfuron-methyl)....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Exotic species; Trumpet flower; Susceptibility to herbicides..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400759
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Biodiversity of benthic macroinvertebrates on hard substrates in the Currais Marine Protected Area, in southern Brazil Biota Neotropica
Bumbeer,Janaína; Cattani,André Pereira; Chierigatti,Nícolas Binneck; Rocha,Rosana Moreira da.
Abstract This study describes the biodiversity of benthic invertebrates on hard substrates in the Currais Marine Protected Area (Currais MPA), in the state of Paraná. The benthic community was sampled during 2012 to 2015, in winter and summer, at two islands and four groups of artificial reefs (ARs). Samples were collected along shallow (2-4 m) and deep (6-8 m) transects at the islands and ~18 m transects at the ARs. We also searched the literature to review all published records of benthic invertebrates on hard substrates in the Currais MPA. We recorded 176 taxa in the phyla Annelida (class Polychaeta), Arthropoda (class Maxillopoda, order Sessilia), Bryozoa, Cnidaria, Chordata (class Ascidiacea), Echinodermata, Mollusca and Porifera, in 13 classes, 40...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Benthic invertebrates; Exotic species; Inventory; Marine conservation; Paraná coast.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000400201
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Biogeographical aspects of drosophilids (Diptera, Drosophilidae) of the Brazilian savanna Rev. Bras. entomol.
Chaves,Natália Barbi; Tidon,Rosana.
Some species of drosophilids have been intensely studied, especially in the areas of genetics and molecular biology. However, little is known about their ecology and biogeography. Here, we revise the records of Drosophilidae species in the Cerrado domain, in order to organize the available information and to recognize patterns of geographic distribution and endemism. The 43 sampled sites in this domain reveal 100 species of drosophilids (10 of them exotic to the Neotropical region), distributed in eight genera. The collections were concentrated mainly in the States of Goiás (including the Federal District) and Minas Gerais. Serra do Cipó is the site with the highest richness of these insects. Of the 90 neotropical species found in the Cerrado, 77 also...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Drosophila; Exotic species; Neotropical species; Pattern of distribution; Zaprionus.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262008000300005
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Comportamento inicial de espécies florestais exóticas na região costeira do Nordeste. Infoteca-e
SIQUEIRA, E. R. de; RIBEIRO, F. E.; RANGEL, M. S. A..
1998
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Floresta exotica; Especie exotica; Ecologia; Regiao costeira; Exotic forestry; Exotic species; Coastal region; Brasil; Regiao Nordeste.
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/359839
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Conquering Brazil: the invasion by the exotic gekkonid lizard Hemidactylus mabouia (Squamata) in Brazilian natural environments Rev. Bras. Zool.
Rocha,Carlos Frederico D.; Anjos,Luciano A.; Bergallo,Helena G..
In this study we review the records regarding occurrence of Hemidactylus mabouia Moreau De Jonnès, 1818 in Brazil, looking for records of the species in natural habitats, in order to assess the present status of this gecko as an exotic or invasive alien species in the country. We surveyed the available records of H. mabouia living in natural conditions, considering secondary data obtained from the literature, supplemented with original field records obtained by the authors during fieldwork. We found a total of 36 records in the literature and/or field records reporting the occurrence of H. mabouia in natural habitats in 36 different localities in 13 Brazilian states. The states presenting a higher number of records were Rio de Janeiro (seven), Bahia, São...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Exotic species; Invasive lizard; Monitoring of species; Open habitat invasion; Status of invasion.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000600007
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Cultural practices and risk of shellfish pathogen exchanges : the oyster aquaculture in France ArchiMer
Miossec, Laurence; Girard, Sophie; Czerwinski, N..
The first national census concerning shellfish culture in France was carried out in 2002. The main purpose was to provide accurate and comprehensive information on the number and structure of the companies using an in depth review of production factors (leases, plants, equipment's, labour and qualifications), and a survey of cultural practices up to the market level. Moreover, the census aimed to quantify the bivalve sales dedicated to consumption and to measure the livestock transfers among rearing shellfish production areas at different developmental stages: spat, intermediate products and fully grown marketable products. The French oyster production reached 109 000 metric tons in 2001. The main production was observed in Poitou-Charentes region...
Tipo: Text Palavras-chave: Risk; Pathogens; Exotic species; Introduction; Cultural practices; Transfert; France; Oyster aquaculture.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/acte-3316.pdf
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Disruption of ecosystem processes in western North America by invasive species RChHN
Dukes,Jeffrey S.; Mooney,Harold A..
Many ecosystems of western North America have been dramatically changed by non-native species. Here, we review ecological impacts of 56 plant, animal, fungus, and protist species that were brought to this region by humans. We discuss characteristics of invasive species that can lead to major ecosystem impacts, and explore how invasive species alter many different attributes of ecosystems. Specifically, we include examples of invasive species that affect geomorphology, fire regimes, hydrology, microclimate, atmospheric composition, nutrient cycling, and productivity. Finally, we review the direct consequences of biological invasions for some native species. We summarize examples from this paper in Appendix 1. Our examples illustrate how, as invasive species...
Tipo: Journal article Palavras-chave: Biological invasions; Ecosystem functioning; Community structure; Exotic species; Impact.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000300003
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Distribución actual y dispersión del conejo europeo (Oryctolagus cuniculus) en Mendoza (Argentina) Mastozool. neotrop.
Bonino,Never; Soriguer,Ramón C..
Tipo: Info:eu-repo/semantics/report Palavras-chave: Biological invasions; Conservation; Distribution; Exotic species; Oryctolagus cuniculus.
Ano: 2004 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832004000200008
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Do what I say, not what I do: Are we linking research and decision-making about invasive species in Patagonia? Ecología austral
Anderson,Christopher D; Valenzuela,Alejandro E. J.
Invasion biology is well-positioned epistemologically, theoretically and practically to address the challenge of being both scientifically and socially relevant. Yet, how well are we achieving these two dimensions of academic inquiry and impact? We explored this issue by a) surveying Argentine invasion biology practitioners (students, scientists and managers) to determine the types of collaborations they report and their stated preferences regarding research thematic priorities (autecology, impacts, management, patterns/distribution, presence/absence, processes/mechanisms, policy, social), and b) reviewing the invasion biology literature in Argentine Patagonia to establish research productivity, the publications' taxonomic, methodological (review,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Epistemology; Exotic species; Review; Science-society; Social dimensions.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2014000200008
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Effects of an atypical drought on the benthic macroinvertebrate community in a tropical reservoir Biota Neotropica
Anacléto,Maria José Pinheiro; Ligeiro,Raphael; Barbosa,José Etham de Lucena; Molozzi,Joseline; Callisto,Marcos.
Abstract Atypical drought events have increasingly occurred in Brazil over the last years due to global climate changes. However, their consequences on aquatic biota in reservoirs are poorly known. We tested the hypothesis that macroinvertebrate communities are negatively affected by atypical drought events, given the sensitivity of many taxa to environmental changes. We predicted that: (a) there would be changes in limnological and sediment parameters between a regular year and an atypical year, (b) abundance and richness of the genera of Chironomidae and of exotic species would be higher due to the enhanced ability of these organisms to adapt to changes in the physical environment, and (c) community structure metrics (i. richness; ii. % richness; iii....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Benthic fauna; Exotic species; Ecological integrity; Water stress; Climate changes.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000200205
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Exotic plant invasions to the mediterranean region of Chile: causes, history and impacts RChHN
FIGUEROA,JAVIER A.; CASTRO,SERGIO A.; MARQUET,PABLO A.; JAKSIC,FABIAN M..
We review the literature on patterns, causes, processes and impacts of exotic plants, primarily in the mediterranean region of Chile, considering three major non-independent drivers of the invasion process: (a) Availability of exotic species propagules, (b) attributes of the local communities in which exotic species establish and through which they will eventually spread out, and (c) attributes of exotic species that either facilitate or constraint their spread into new sites. Regarding availability of propagules, central Chile matorral presents the communities with the greatest incidence of naturalized herbs, followed by the sclerophyllous forest and the espinal scrubland in the coastal range. In contrast, north-central communities have lower numbers and...
Tipo: Journal article Palavras-chave: Exotic species; Plant invasions; Naturalized plants; Invasion history; Ecosystem disruption.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000300006
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Feeding habits of the crab-eating fox, Cerdocyon thous (Carnivora: Canidae), in a mosaic area with native and exotic vegetation in Southern Brazil Zoologia
Rocha,Vlamir J.; Aguiar,Lucas M.; Silva-Pereira,José E.; Moro-Rios,Rodrigo F.; Passos,Fernando C..
Cerdocyon thous (Linnaeus, 1766) is the most widespread neotropical canid, most commonly inhabiting forested areas. This animal is a generalist omnivore that is able to use environments disturbed by human activities. The aim of this study was to describe its diet through the stomach content analysis of 30 samples obtained from specimens that were run over in a mosaic composed by Araucaria Pine Forest, Semidecidual Seasonal Forest, natural grasslands, and exotic vegetation. The items were quantified by frequency of occurrence (F.O.) and percentage of occurrence (P.O.). A total of 64 food items were found among 171 occurrences. According to F.O. method, plant items corresponded to 93.3% of the occurrences, followed by animal items (86.7%) and human rejects...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carnivorous; Diet; Exotic species; Frugivory; Neotropical canid; Silviculture.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000400003
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First detection of the cosmopolitan invader Leptoglossus occidentalis Heidemann (Heteroptera: Coreidae) in Argentina Anais da ABC (AABC)
KUN,MARCELO E.; MASCIOCCHI,MAITÉ.
Abstract: Leptoglossus occidentalis Heidemann is a conifer seed bug, native to North America. This species is considered invasive and has reached several countries in the Northern Hemisphere and most recently Chile in South America. This work reports the first detection of this species in Argentina, with specimens from the Rio Negro province, in 2017. Ecological traits and its potential rapid spread were also discussed.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Exotic species; Foliated chinch bug; Invader; Pine plantation; Pinus spp.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500606
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First record of Chrysomya rufifacies (Macquart) (Diptera, Calliphoridae) from Brazil Rev. Bras. entomol.
Silva,José O. de Almeida; Carvalho-Filho,Fernando da S.; Esposito,Maria C.; Reis,Geniana A..
First record of Chrysomya rufifacies (Macquart) (Diptera, Calliphoridae) from Brazil. In addition to its native fauna, the Neotropical region is known to be inhabited by four introduced species of blow flies of the genus Chrysomya. Up until now, only three of these species have been recorded in Brazil - Chrysomya albiceps (Wiedemann), Chrysomya megacephala (Fabricius), and Chrysomya putoria (Wiedemann). In South America, C. rufifacies (Macquart) has only been reported from Argentina and Colombia. This study records C. rufifacies from Brazil for the first time. The specimens were collected in an area of cerrado (savanna-like vegetation) in the municipality of Caxias in state of Maranhão, and were attracted by pig carcasses.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Blow fly; Cerrado biome; Exotic species; Northern Brazil; Oestroidea.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000100019
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First record of the exotic channel catfish Ictalurus punctatus (Rafinesque 1818) (Siluriformes: Ictaluridae) in the Rio dos Sinos basin, RS, Brazil Biota Neotropica
Cruz,Sabrina Spindler da; Leal,Mateus Evangelista; Albornoz,Pablo César Lehmann; Schulz,Uwe Horst.
The introduction of non-native species in inland waters is one of the main threats for aquatic biodiversity. Introduced species may compete for resources, prey on native fauna, spread diseases and parasites. The channel catfish Ictalurus punctatus (Siluriformes, Ictaluridae) was first described by Rafinesque 1818 in the United States and is widely distributed in North America, south Canada and north-east Mexico. This species adapts easily to new environmental conditions, is tolerant to different habitats, and is grown easily in aquaculture, which turns it into a potential invader of natural aquatic environments. The introduction of I. punctatus occurs in Brazil since 1980, and this is the first record of its occurrence in the Rio dos Sinos basin, Brazil. A...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Introduction; Exotic species; Aquaculture; Catfish; Environmental laws.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000300005
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First record of the invasive alien species Axis axis (Erxleben, 1777) (Artiodactyla: Cervidae) in Brazil Biota Neotropica
Sponchiado,Jonas; Melo,Geruza Leal; Cáceres,Nilton Carlos.
The exotic alien species Axis axis was introduced in the Americas at the beginning of last century and since then has established itself, expanding its distribution. This is the first record of this species in Brazil. In the extreme south of the country, an individual of A. axis was recorded with a camera trap in the Espinilho State Park. The area is close to the border of Uruguay and Argentina, countries where the species is established and from where this individual presumably originated. The Pampas biome is strongly disturbed by human activity in Brazil and since many native mammal species such as the Pampas deer Ozotoceros bezoarticus are threatened regionally. It is alarming that exotic populations can potentially rapidly expand their ranges in the...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Pampas biome; Introduction; Exotic species; Interference competition; Ozotoceros bezoarticus.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000300032
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First records of introduced carps (Teleostei, Cyprinidae) in the natural habitats of Mirim and Patos Lagoon estuary, Rio Grande do Sul, Brazil Zoologia
Garcia,Alexandre M.; Loebmann,Daniel; Vieira,João P.; Bemvenuti,Marlise A..
This is the first record in the wild of occurrence of four carp species (bighead Aristichthys nobilis (Richardson, 1845), common Cyprinus carpio carpio Linnaeus, 1758, silver Hypophthalmichthys molitrix (Valenciennes, 1844), and grass carp Ctenopharyngodon idellus (Valenciennes, 1844)) in the Mirim Lagoon and Patos Lagoon estuary. Our findings reinforce the hypothesis that during periods of elevated rainfall and freshwater discharge, exotic species could be easily transported from overflowed ponds and lakes into the Mirim-Patos Lagoon and then estuarine area.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Exotic species; Native fishes; Rice-field aquaculture; Sport fish ponds.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752004000100027
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FOOD PREFERENCE AND CONSUMPTION OF AQUATIC MACROPHYTES SUBMERGED BY SNAIL Pomacea canaliculata Planta Daninha
CRUZ,C.; SILVA,A. F.; VENTURINI,F. P.; GARLICH,N.; PITELLI,R. L. C. M.; PITELLI,R. A..
ABSTRACTThe objective of this study was to evaluate the consumption potential, food preference and use of snail Pomacea canaliculata as a biocontrol agent of four submerged aquatic macrophytes (Ceratophyllumdemersum, Egeriadensa, Egerianajas and Hydrilla verticillata). Two experiments were performed. In the first experiment, the introduction of a snail took place and 10 grams of each macrophyte in plastic containers with 1 liter of water. The assessments of consumption by the snail were performed at each 48 hours, during 12 days. The second experiment was performed in 600 liters microcosms containing five snails in each experimental unit. Fifty grams of each macrophyte were offered the snails at the same time, adding the same amounts after seven, 14, 21...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquatic macrophytes; Biological control; Exotic species.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000300433
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Freshwater mollusks and environmental assessment of Guandu River, Rio de Janeiro, Brazil Biota Neotropica
Miyahira,Igor Christo; Carneiro,Jéssica Beck; Gonçalves,Isabela Cristina Brito; Lacerda,Luiz Eduardo Macedo de; Oliveira,Jaqueline Lopes de; Vasconcelos,Mariana Castro de; Santos,Sonia Barbosa dos.
Abstract The Guandu River Basin is extremely important to state of Rio de Janeiro, as a water supplier of several municipalities. However, the malacological knowledge and environmental status is not well known to this basin. The aim of this paper is to present an inventory of freshwater mollusks, as well as an environmental assessment through a Rapid Assessment Protocol, of ten sampling sites at Guandu River basin in six municipalities (Piraí, Paracambi, Japeri, Seropédica, Queimados and Nova Iguaçu). Thirteen species of molusks were found, eight native (Pomacea maculata, Biomphalaria tenagophila, Gundlachia ticaga, Gundlachia radiata, Omalonyx matheroni, Diplodon ellipticus, Anodontites trapesialis and Eupera bahiensis) and five exotics (Melanoides...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gastropoda; Bivalvia; Mollusca; Exotic species; RAP.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000300305
Registros recuperados: 54
Primeira ... 123 ... Última
 

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