Consulta: subjectFacets:"Exotic species"
Registros recuperados: 54
Data/hora: 13/06/2024 17:49:42

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

Do what I say, not what I do: Are we linking research and decision-making about invasive species in Patagonia?
Provedor de dados: 67
Autores: 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

The history of the introduction of the giant river prawn, Macrobrachium cf. rosenbergii (Decapoda, Palaemonidae), in Brazil: new insights from molecular data
Provedor de dados: 74
Autores: Iketani,Gabriel; Pimentel,Luciana; Silva-Oliveira,Glaúcia; Maciel,Cristiana; Valenti,Wagner; Schneider,Horacio; Sampaio,Iracilda.
The giant river prawn, Macrobrachium cf. rosenbergii, is one of the most cultivated freshwater prawns in the world and has been introduced into more than 40 countries. In some countries, this prawn is considered an invasive species that requires close monitoring. Recent changes in the taxonomy of this species (separation of M. rosenbergii and M. dacqueti) require a re-evaluation of introduced taxa. In this work, molecular analyses were used to determine which of these two species was introduced into Brazil and to establish the geographic origin of the introduced populations that have invaded Amazonian coastal waters. The species introduced into Brazil was M. dacqueti through two introduction events involving prawns originating from Vietnam and either...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioinvasion; Exotic species; Giant river prawn; Macrobrachium dacqueti; COI; 16S rRNA; Amazonia.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100025

Taxonomy, distribution and population structure of invasive Corbiculidae (Mollusca, Bivalvia) in the Suquía River basin, Córdoba, Argentina
Provedor de dados: 76
Autores: Reyna,Paola B.; Morán,Ariana G.; Tatián,Marcos.
Invasive species are one of the most significant causes of biodiversity loss and changes in ecosystem services, which underlines the importance of their detection and their study. The Asian clams (Corbiculidae) are invasive organisms that accidentally entered the La Plata River, Argentina, presumably in the 1960s. The objectives of the present study were to identify the corbiculid species and to determine their distribution at several locations along the Suquía River basin, an extended area in central Argentina. In addition, population structure was evaluated monthly during one year, at a site in the city of Córdoba that is characterized by high human influence. The presence of Corbicula fluminea (Müller, 1774) and Corbicula largillierti (Philippi, 1844)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corbicula largillierti; Corbicula fluminea; Exotic species; Colonization.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212013000200001

Reproductive ecology of the invader species gekkonid lizard Hemidactylus mabouia in an area of southeastern Brazil
Provedor de dados: 76
Autores: Anjos,Luciano A.; Rocha,Carlos Frederico D.
Hemidactylus mabouia Moreau de Jonnés, 1818 is a "fixed" clutch size exotic species well established in Brazil. In this paper we investigate some reproductive strategies adopted to minimize the costs of invariant clutch size to this invader species living in an environment with marked climatic seasonality in Southeastern Brazil (22°56’S; 46°55’W). The study was carried out from April 2002 to March 2003. Females and males attain maturity at 47.9mm and 46.9mm SVL, respectively. Larger females tended to produce larger eggs. The reproduction occurred throughout the year, but only at the wet season the females increase the clutch frequency. There was a significant variation in mean testis volume among the months throughout the year and the largest means were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemidactylus; Exotic species; Reproduction; Egg size relationships.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000200006

Comportamento inicial de espécies florestais exóticas na região costeira do Nordeste.
Provedor de dados: 14
Autores: SIQUEIRA, E. R. de; RIBEIRO, F. E.; RANGEL, M. S. A.
bitstream/item/147906/1/Comportamento-inicial0001.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Floresta exotica; Especie exotica; Regiao costeira; Exotic forestry; Exotic species; Coastal region; Brasil; Regiao Nordeste.; Ecologia.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/359839

Teste e seleção de espécies arbóreas para a indústria do polo moveleiro de Marco, CE (Fase I)
Provedor de dados: 14
Autores: CORREIA, D.; SOUSA, J. A. de; VIANA, F. M. P.; MESQUITA, A. L. M.; MIRANDA, F. R. de; NEVES, E. J. M.; WENDLING, I.; SANTOS, A. M.; CARPANEZZI, A. A.; CARVALHO, P. E. R.; ARAÚJO, J. D. M.; NASCIMENTO, E. H. S. do.
bitstream/item/171280/1/DOC17006.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Espécies nativas; Espécies exóticas; Clones de eucalipto; Região litorânea; Preservação; Eucalyptus clones; Preservation.; Native species; Coastal region; Exotic species.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1085733

Ability of taxonomic diversity indices to discriminate coastal lagoon environments based on macrophyte communities
Provedor de dados: 5
Autores: 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 &lt; 0.05) and Salse-Leucate had a significant higher variation in taxonomic distinctness (p &lt;...
Tipo: Text
Palavras-chave: Languedoc Roussillon; Exotic species; Human impact; Eutrophication; Biodiversity.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-748.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

Cultural practices and risk of shellfish pathogen exchanges : the oyster aquaculture in France
Provedor de dados: 5
Autores: 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

Second record of Tityus bahiensis (Scorpiones, Buthidae) from Venezuela: epidemiological implications
Provedor de dados: 80
Autores: De Sousa,L.; Borges,A.; Manzanilla,J.; Biondi,I.; Avellaneda,E.
This work reports the second record of the scorpion Tityus bahiensis Perty from Venezuela. The specimen was found alive in a wardrobe at a hotel resort in Margarita Island, northeastern Venezuela. Morphological characterization allowed its assignment to the Tityus bahiensis population inhabiting the southernmost area of the species' geographic range, e.g. the state of São Paulo in Brazil, northern Argentina and Paraguay. The fact that the only available Venezuelan antiscorpion (anti-Tityus discrepans) serum does not neutralize the effects of alpha- and beta-toxin from Tityus serrulatus venom (which resembles in composition that of T. bahiensis) constitutes a warning to local clinicians confronted with envenomations by noxious species transported to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tityus; Scorpiones; Buthidae; Exotic species.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000100015

Distribución actual y dispersión del conejo europeo (Oryctolagus cuniculus) en Mendoza (Argentina)
Provedor de dados: 81
Autores: 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

Human use and small mammal communities of Araucaria forests in Neuquén, Argentina
Provedor de dados: 81
Autores: Shepherd,John D.; Ditgen,Rebecca S.
Small mammals were sampled in five closed, humid, Araucaria araucana forests that differed in the degree of anthropogenic disturbance in southwestern Neuquén province. Nine species were captured in 3416 trap nights. Abrothrix longipilis and Oligoryzomys longicaudatus made up 88% of all captures. Small mammal relative abundance was 52 times higher where grazing was absent compared to a site with intense grazing pressure. Seed predation, primarily by livestock and feral exotic mammals, varied from 59.7% to 15.1% of marked seeds per day. Small mammal community productivity and composition were correlated with understory structure (Mantel test, r = 0.529, p = 0.04), and with rates of seed predation (r = -0.91, n = 4, p = 0.08). Forests with less complex...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Araucaria araucana; Exotic species; Human impact; Seed predation; Small mammals.
Ano: 2005
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832005000200008

The exotic jellyfish Blackfordia virginica introduced into the Netherlands (Cnidaria: Hydrozoa)
Provedor de dados: 16
Autores: Faasse, M.A.; Melchers, M.
In August 2014 the exotic jellyfish Blackfordia virginica was captured in the harbour of Amsterdam. This is the first confirmed record of this species in the Netherlands, although in October 2013 a possible specimen was filmed and released. This indicates that the species might be established in the Amsterdam area, although repeated introduction with ballast water cannot be ruled out. In September 2014 hydrozoan polyp colonies closely resembling those of B. virginica were collected near IJmuiden in the Noordzeekanaal, a canal connecting Amsterdam with the North Sea at IJmuiden.
Tipo: Article / Letter to the editor
Palavras-chave: Cnidaria; Hydrozoa; Blackfordia virginica; Netherlands; Exotic species; Distribution; Identification; 42.75.
Ano: 2014
URL: http://www.repository.naturalis.nl/record/625706

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

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

Habitat characteristics and environmental parameters influencing fish assemblages of karstic pools in southern Mexico
Provedor de dados: 83
Autores: Vega-Cendejas,María Eugenia; Santillana,Mirella Hernandez de; Norris,Steven.
Fish assemblage structure was evaluated and compared among 36 karstic pools located within protected areas of the Calakmul Biosphere Reserve (southern Mexico) and unprotected adjacent areas beyond the Reserve. Nonmetric multidimensional scaling (MDS), indicator species analysis (ISA), and canonical correspondence analysis (CCA) were used to identify which environmental factors reflected local influences and to evaluate the correlation of these variables with fish assemblages structure. Thirty-one species were encountered in these karstic pools, some for the first time within the Reserve. These aquatic environments were separated into three groups based on physico-chemical characteristics. Although CCA identified significant associations between several...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biosphere Reserve; Exotic species; Freshwater fish; Habitat use; Hydrological conditions.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000400859

The introduction of the African catfish Clarias gariepinus (Burchell, 1822) into Brazilian inland waters: a growing threat
Provedor de dados: 83
Autores: Rocha,Gecely Rodrigues Alves.
The biology of the introduced species Clarias gariepinus in lagoa Encantada (Ilhéus, Bahia State) was studied. Samples were obtained with gillnets between May 2002 and February 2004. All individuals caught exceeded the average length at first maturity cited in literature. Males and females in maturation stages indicate that the species is already established in the lake.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater; Fish; Exotic species; Sharptooth catfish.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000400020

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

O cenário nacional da silvicultura de teca e perspectivas para o melhoramento genético
Provedor de dados: 190
Autores: Schuhli, Guilherme Schnell e; Paludzyszyn Filho, Estefano.
As propriedades da madeira de teca (Tectona grandis L. f) regem um intenso processo de domesticação e cultivo em regiões além de seu habitat natural. O interesse na espécie como alternativa aos plantios florestais tradicionais no Brasil vem crescendo. Esta revisão contribui com o processo de resgate da  informação técnicocientífica sobre a teca com vistas à elaboração de um programa de melhoramento. Neste documento, é apresentada uma breve revisão sobre os métodos silviculturais para a espécie no Brasil. Foram explorados aspectos positivos inerentes ao cultivo assim como os principais riscos. De forma geral, verificou-se que os programas recentes de  melhoramento genético concentraram-se no  desenvolvimento de clones. A ênfase inicial dos programas de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brasil; Espécies exóticas; Tectona grandis; Programa de melhoramente Brazil; Exotic species; Tectona grandis; Breeding program.
Ano: 2010
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/84

Physical, chemical and mechanical properties of Australian cedar wood cultivated in Corupá, Santa Catarina State, Brazil
Provedor de dados: 190
Autores: Trianoski, Rosilani; Matos, Jorge Luis Monteiro de; Iwakiri, Setsuo.
The Australian cedar (Toona ciliata M. Roem) is a species of high commercial value, with characteristics similar to native mahogany and cedar, which has been highlighted in forest plantations in Brazil, whose wood should be the subject of technological research. The objective of this study was to evaluate the physical, chemical and mechanical properties from planted stands of 18 years old. The wood showed low density (0.330 g cm3), low average dimensional stability (anisotropy: 2.22), high content of extractives (10.33%) and moderate mechanical properties: MOR and MOE to bending: 498 kgf cm-2 and 66,163 kgf cm-2; MOR and MOE for parallel compression: 258 kgf cm-2 and 100.813 kgf cm-2; shear: 82 kgf cm-2 and medium hardness: 208 kgf.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exotic species; Resistance; Dimensional stability; Extractives; Toona ciliata Tecnologia e utilização de Produtos Florestais - Propriedades da madeira Espécie exótica; Resistência; Estabilidade dimensional; Extrativos; Toona ciliata.
Ano: 2014
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/523

Seasonal fluctuation in the population of Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) and co-occurrence with other Coccinellids in the Federal District of Brazil
Provedor de dados: 84
Autores: Harterreiten-Souza,Érica Sevilha; Togni,Pedro Henrique Brum; Milane,Paloma Virgínia Gambarra Nitão; Cavalcante,Kelly Ramalho; Medeiros,Maria Alice de; Pires,Carmen Silvia Soares; Sujii,Edison Ryoiti.
The multicolored Asian lady beetle, Harmonia axyridis (Pallas, 1773), was first recorded in Brazil in 2002 in Paraná state and subsequently observed in Santa Catarina, Rio Grande do Sul and Minas Gerais. This species can spread to new areas and become dominant in the local community, reducing the density and diversity of native species, mainly Coccinellidae. The objective of this work was to record for the first time the occurrence of H. axyridis in the Federal District and its co-occurrence with other Coccinellidae species. The individuals were collected directly from plants at an organic farm in Taguatinga and in experimental fields of Embrapa Hortaliças, located in the Federal District, from August 2008 to January 2010. We collected 881 Coccinelids, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological Control; Diversity; Exotic species; Invasion; Predator.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492012001100001

Germination Ecology of Ivy-Leaved Morning-Glory: an Invasive Weed in Soybean Fields, Iran
Provedor de dados: 87
Autores: SIAHMARGUEE,A.; GORGANI,M.; GHADERI-FAR,F.; ASGARPOUR,R.
ABSTRACT: Ivy-leaved morning-glory (Ipomoea hederacea Jacq.) is an exotic species that is becoming an increasing problem in soybean fields of Golestan province, Iran. Because little information is available on the biology of this weed species in Iran, experiments were conducted to investigate the effects of different factors on seed germination and emergence of Ivy-leaved morning-glory. Maximum germination occurred at constant temperature of 20 oC (82%) and alternating temperature of 15/25 oC (94%). Germination was reduced with increasing salinity and drought stresses. Sodium chloride concentration and osmotic potential that inhibited 50% maximum germination were -1.64 and -1.03 MPa, respectively. Acidity was a limiting factor for the germination, due to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biotic stress; Alternating temperatures; Exotic species; PH.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100227

FOOD PREFERENCE AND CONSUMPTION OF AQUATIC MACROPHYTES SUBMERGED BY SNAIL Pomacea canaliculata
Provedor de dados: 87
Autores: 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

Aminocyclopyrachlor: New Option for Trumpet Flower Control in Pastures
Provedor de dados: 87
Autores: 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

Phytochemistry and Allelophatic Potential of Torelliodora Eucalyptus Leaves on Germination and Initial Growth of Mutambo
Provedor de dados: 87
Autores: PEREIRA,S.R.; FONSECA,D.R.; MATIAS,R.; CORRÊA,B.O.; PEDRINHO,D.R.
ABSTRACT: Considering the possibility of a intercropping between exotic and native wood species for Legal Reserve areas restoration, information is needed about the possible interactions (positive or negative) between the involved species. The aim of this study was to determine the allelochemicals classes of aqueous extracts from dried and fresh leaves of torelliodora eucalyptus, as well as to evaluate the allelopathic potential of these extracts in the germination and initial growth of Guazuma ulmifola, a native species from Cerrado. To obtain the aqueous extracts at the concentrations of 25 mg mL-1, 50 mg mL-1, 100 mg mL-1 and 200 mg mL-1, the fresh and dried leaves of the eucalyptus were separately subjected to turbolize, followed by an ultrasound bath...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelochemicals; Legal Reserve restoration; Guazuma ulmifolia; Exotic species.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100349

Biogeographical aspects of drosophilids (Diptera, Drosophilidae) of the Brazilian savanna
Provedor de dados: 92
Autores: 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

First record of Chrysomya rufifacies (Macquart) (Diptera, Calliphoridae) from Brazil
Provedor de dados: 92
Autores: 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

Introduced and native Phlebobranch and Stolidobranch solitary ascidians (Tunicata: Ascidiacea) around Salvador, Bahia, Brazil
Provedor de dados: 103
Autores: Rocha,Rosana M.; Bonnet,Nadia Y.K.; Baptista,Mariah S.; Beltramin,Fabiele S.
The Port of Salvador (12°58'S, 38°30'W) receives cargo ships from different regions such as southeast Asia, North Atlantic, Mediterranean, Africa, North and South America. Thus, the presence of this port enhances the probability of new species arriving and establishing in Todos os Santos Bay (TSB), in which the port is located. Ascidians are sessile filter-feeding invertebrates with short lived larvae and thus are good indicators of bioinvasion. We surveyed the ascidian fauna on three different occasions: August 1999, June 2004 and December 2007. Nineteen species were identified belonging to the following families: Ascidiidae (Phallusia nigra, Ascidia cf. multitentaculata, A. nordestina, A. papillata, A. scalariforme, A. cf. tapuni, A. tenue), Corellidae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Baía de Todos os Santos; Biodiversity survey; Exotic species; Sea squirt.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000100005

Hyper abundant mesopredators and bird extinction in an Atlantic forest island
Provedor de dados: 103
Autores: Galetti,Mauro; Bovendorp,Ricardo S.; Fadini,Rodrigo F.; Gussoni,Carlos O. A.; Rodrigues,Marcos; Alvarez,Ariane D.; Guimarães Jr,Paulo R.; Alves,Kaiser.
Islands can serve as model systems for understanding how biological invasions affect native species. Here we examine the negative effects of mesopredator mammals on bird richness at Anchieta Island, an 826 ha offshore island in the coast of Brazil. Anchieta Island has the highest density of mammals of the entire Atlantic forest, especially nest predators such as marmosets and coatis, introduced more than 20 years ago. This indiscriminate introduction of mammals may have affected directly the bird community, nowadays represented by 100 species comprised mainly by water-crossing birds, being 73 forest-dwelling species. A small component of these remnant bird species nests in tree holes and on the forest floor, null model analysis suggest that birds within...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Callithrix; Exotic species; Line transect; Mesopredator release; Null models.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200011

Morphological variability and distribution of the exotic Asian Mesocyclops thermocyclopoides (Copepoda: Cyclopoida): in the Neotropical region
Provedor de dados: 103
Autores: Suárez-Morales,Eduardo; Mercado-Salas,Nancy F; Morales-Ramírez,Álvaro.
From a series of biological samples collected from different freshwater environments in Costa Rica, Central America, the exotic Asian cyclopoid Mesocyclops thermocyclopoides Harada, 1931 was identified. We analyzed the morphology and appendage ornamentation of different Neotropical populations of this species, including specimens from Honduras, southeastern Mexico, and Costa Rica. We also examined Asian specimens from Taiwan, Indonesia, Vietnam, and Thailand, and performed a comparison of the Neotropical and Asian populations including a Principal Component Analysis (PCA). The Neotropical and Asian specimens show subtle morphological variations in the antennules, antennae, mandibles, swimming legs 1-4, and fifth legs. Some characters in the Neotropical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacean taxonomy; Freshwater crustaceans; Copepods; Exotic species; Morphometrics.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000500016

Non indigenous ascidians in port and natural environments in a tropical Brazilian bay
Provedor de dados: 103
Autores: Marins,Flávia O.; Novaes,Roberto L. M.; Rocha,Rosana M.; Junqueira,Andrea O. R.
Despite limited natural dispersal, some species of ascidians can be transported vast distances via oceanic petroleum platforms, ship hulls and ballast water and therefore may be good indicators of bioinvasion. Usually non indigenous species (NIS) are abundant in harbors. This is caused in part because of the higher propagule delivery rate in these areas. An alternative explanation of why invasion is enhanced in harbor and marinas is that environmental degradation commonly found in these habitats favors the establishment of NIS. Most surveys for introduced species were not comprehensive and targeted mainly ports and marinas. Angra dos Reis is an excellent system that provides an opportunity to compare the potential distribution of introduced and native...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial substrate; Bioinvasion; Exotic species; Organic pollution; Tunicata.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000200009

Conquering Brazil: the invasion by the exotic gekkonid lizard Hemidactylus mabouia (Squamata) in Brazilian natural environments
Provedor de dados: 103
Autores: 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

Disruption of ecosystem processes in western North America by invasive species
Provedor de dados: 97
Autores: 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

Exotic plant invasions to the mediterranean region of Chile: causes, history and impacts
Provedor de dados: 97
Autores: 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

Plants of initial development Bauhinia variegata L. and Ceiba speciosa (A. St. Hil.) Ravenna for urban street tree in the avian substrates bed base
Provedor de dados: 22
Autores: Krefta, Sandra Mara; Brun, Eleandro José; Facchi, Suelen Pietrobon; dos Santos, Luana Maria; Klein, Danieli Regina; Krefta, Sandiane Carla; Germano, Aline Delfino; Frigeri, João Vitor.
Due to the increasing need for forest roads, parks and gardens with good quality seedlings, the study aimed to evaluate the initial development of seedlings of Bauhinia variegata L. and Ceiba speciosa (A. St. Hil.) Ravenna in different proportions bed aviary on the substrate. To this end, it tested five substrates made from bed aviary: T1: commercial substrate (CS) control, T2: 33.3% of soil (S), 33.3% sand (SA) and 33.3 % Bed aviary (BA); T3: 25% S, 25% SA, 50% BA; T4: 16,6% S, 16,6% SA, 66,6% BA; T5: 100% BA. From the results, it is concluded that all substrates studied were shown to be suitable for the development of seedlings of B. variegata and C. speciosa, however, the use of bed aviary becomes interesting in the production of seedlings, therefore,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exotic species; Forest species; Agro-industrial waste.
Ano: 2017
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/14001

Reciente invasión del Archipiélago de Tierra del Fuego por la avispa Vespula germanica (Hymenoptera: Vespidae)
Provedor de dados: 99
Autores: Sola,Francisco J.; J. Valenzuela,Alejandro E.; Anderson,Christopher B.; Martínez Pastur,Guillermo; Lencinas,María V.
Vespula germanica es una especie invasora de nivel mundial que ha sido detectada en la Patagonia continental de la Argentina y Chile. En este trabajo, ampliamos el rango de distribución de este véspido de la Patagonia, al Archipiélago de Tierra del Fuego. Indicamos ubicación, año y ambiente de cada avistamiento y/o captura. El patrón de expansión indicaría que esta especie está bien establecida tanto en áreas naturales como antrópicas, y probablemente ha dependido del transporte humano para llegar desde el continente. Esta comunicación breve sirve también para tomar medidas prácticas de mitigación y control de esta especie, incluyendo información básica para que la ciudadanía tome conciencia sobre su presencia y esto ayude a evitar su transporte a nuevos...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Biological invasions; Exotic species; Patagonia; Social insect; Yellow-jacket.
Ano: 2015
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802015000200012

Reproduction of a South American population of pumpkinseed sunfish Lepomis gibbosus (Linnaeus) (Osteichthyes, Centrarchidae): a comparison with the European and North American populations
Provedor de dados: 104
Autores: Magalhães,André L. B. de; Ratton,Thiago F.
The reproductive biology of the introduced pumpkinseed sunfish Lepomis gibbosus (Linnaeus, 1758) in the Custódio's Dam, rio Doce high basin, state of Minas Gerais, Brazil was studied from February/2001 to March/2002 and compared with introduced and native populations. Reproduction occurred almost along the entire period of study with a high frequency of fishes in the advanced ripening/mature and spawned/spent stages. The microscopic analyses indicated that the pumpkinseed sunfish presents multiple spawning. The egg diameter of the Brazilian population is similar to the Spanish, Greek and American ones. The standard length at maturity and the gonadosomatic index of the introduced populations are smaller when compared with native ones. The spawning season of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; Dam; Exotic species; Rio Doce; Spawning.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000200025

First records of introduced carps (Teleostei, Cyprinidae) in the natural habitats of Mirim and Patos Lagoon estuary, Rio Grande do Sul, Brazil
Provedor de dados: 104
Autores: 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

Feeding habits of the crab-eating fox, Cerdocyon thous (Carnivora: Canidae), in a mosaic area with native and exotic vegetation in Southern Brazil
Provedor de dados: 104
Autores: 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

Occurrence, local extinction and conservation of Primates in the corridor of the Upper Paraná River, with notes on other mammals
Provedor de dados: 104
Autores: Aguiar,Lucas M.; Ludwig,Gabriela; Svoboda,Walfrido K.; Hilst,Carmen L. S.; Navarro,Italmar T.; Passos,Fernando C.
The region of Porto Rico, on the Upper Paraná River, is a contact zone between the Atlantic Rainforest and the Cerrado, with elements of the Pantanal wetlands. During surveys from September 2003 to September to 2005, we recorded the presence of non-volant mammals on 14 islands and the adjacent riverbanks. Surveys were by foot and by boat, and we also interviewed local people about the mammals of the region. Sightings of three primate species - Cebus nigritus (Goldfuss, 1809) (left margin of the river), C. libidinosus Spix, 1823 (right margin) and Alouatta caraya (Humboldt, 1812) (both margins and 12 islands) - were plotted on a satellite image. Alouatta clamitans Cabrera, 1940 was not recorded. However, interviews indicated that this species has occurred...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exotic species; Gallery forest; Geographical barrier; Neotropical primates.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000400006

Presence of the walking catfish Clarias gariepinus (Burchell) (Siluriformes, Clariidae) in Minas Gerais state hydrographie basins, Brazil
Provedor de dados: 104
Autores: Alves,Carlos Bernardo Mascarenhas; Vono,Volney; Vieira,Fábio.
The first official occurrence of the exotic species Clarias gariepinus (Burchell, 1822) in the Rio Paraopeba (São Francisco river basin), the Rio Grande (Paraná river basin), and the Rio Doce (Doce river basin), is reported, with comments on the possible ecological consequences and on the conservation of freshwater fish biodiversity due to non-native species introductions.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clarias gariepinus; Exotic species; Fish conservation; Minas Gerais; Brazil.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000100022

The occurrence of the Asian Clam Corbicula fluminea in the lowe amazon basin
Provedor de dados: 36
Autores: BEASLEY,Colin Robert; TAGLIARO,Claudia Helena; FIGUEIREDO,Wilsea Batista.
This paper records for the first time the presence of Corbicula fluminea (Philipi, 1844) in the Brazilian Amazon Basin. This exotic bivalve was found in localities on the Amazonas, Pará and Tocantins rivers. Density and population size structure were measured in some localities. Mean density is between 6.66 and 7.3 individuals m-2. Population size structure and the dates of the first records suggest that the introductions may have occurred between 1997 and 1998. The introductions may have been mediated by ocean-going vessels visiting the ports of Manaus and Belém. The potential impact of the invasion on native freshwater bivalves is discussed along with the need for monitoring and prevention of further introductions of non-indigenous bivalves in Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corbicula fluminea; Exotic species; Distribution; Amazon.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672003000200317

POLYCHAETES FROM RED MANGROVE (Rhizophora mangle) AND THEIR RELATIONSHIP WITH THE WATER CONDITIONS IN THE GULF OF URABÁ, COLOMBIAN CARIBBEAN
Provedor de dados: 37
Autores: FERNÁNDEZ-RODRÍGUEZ,Vanessa; LONDOÑO-MESA,Mario H.; RAMÍREZ-RESTREPO,John Jairo.
Polychaetes play a significant role in benthic communities' ecology; they dominate the infauna, recycle nutrients from the water column and are commonly used as biological indicators. Along the Gulf of Urabá (Colombian Caribbean), particularly for the zones of the Marirrío Bay and the Rionegro Cove, there are no reports about ecological aspects of polychaete species; only a few taxonomic studies have been conducted. In this research we evaluate the relationship between polychaete species associated with red mangrove roots, Rhizophora mangle, and some physicochemical variables of the water column; also, we made some notes about the spatial distributions of polychaetes species within the two study areas. We found that the environmental variables that best...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capitella cf; Capitata; Estuaries; Exotic species; Ficopomatus uschakovi; Polychaetes ecology; Capitella cf; Capitata; Ecología de poliquetos; Estuarios; Especies exóticas; Ficopomatus uschakovi.
Ano: 2016
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2016000300015

The exotic palm Roystonea oleracea (Jacq.) O. F. Cook (Arecaceae) on an island within the Atlantic Forest Biome: naturalization and influence on seedling recruitment
Provedor de dados: 39
Autores: Zucaratto,Rodrigo; Pires,Alexandra dos Santos.
Here, we investigated the population structure of the exotic palm Roystonea oleracea in a swamp on an island within the Atlantic Forest Biome, evaluating its influence on the seedling recruitment of other plant species. The population structure was analyzed in six 4 × 30 m plots, within which we categorized all individuals by ontogenetic stage. The influence of R. oleracea on the seedling recruitment of other plant species was evaluated in 2 × 2 m plots established beneath palm crowns and in adjacent areas without palms. We recorded 53 R. oleracea individuals. The majority (56.6%) of the R. oleracea population was composed of immature adults, followed by mature adults. The density, richness and diversity of seedling species differed significantly between...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity loss; Biological invasion; Exotic species; Seedling mortality.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000300015

Prospecting molecular markers to distinguish Cichla kelberi, C. monoculus and C. piquiti
Provedor de dados: 3
Autores: Gasques, Luciano Seraphim; Prioli, Sônia Maria Alves Pinto; Prioli, Alberto José; Gonçalves, Daniela Dib; Fabrin, Thomaz Manzini Carrenho.
Peacock bass, a fish of the genus Cichla, is an exotic species from the upper river Paraná floodplain in which the species Cichla kelberi and C. piquiti have been confirmed, coupled to the specie C. monoculus upstream in the Capivara and Taquaruçu dams. The introduction of this genus has caused negative impacts on the diversity of native species. Current research prospects DNA sequences capable of distinguishing the three species and provide molecular data for the taxonomic characterization of the species in the upper Paraná River basin.  Sequencing of nuclear (tmo4c4, dlx2 and bmp4) and mitochondrial (cox1, cytb) loci were done from fish of the three species of the genus Cichla reported in the literature of the upper Paraná River basin. Sequence analysis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mitochondrial and nuclear DNA; Exotic species; Peacock bass; Cytb; Dlx2; Cox1. Genética 2.02.00.00.05 mitochondrial and nuclear DNA; Exotic species; Peacock bass; Cytb; Dlx2; Cox1. Genética.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/25985

First detection of the cosmopolitan invader Leptoglossus occidentalis Heidemann (Heteroptera: Coreidae) in Argentina
Provedor de dados: 42
Autores: 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

The effect of exotic grass Urochloa decumbens (Stapf) R.D.Webster (Poaceae) in the reduction of species richness and change of floristic composition of natural regeneration in the Floresta Nacional de Carajás, Brazil
Provedor de dados: 42
Autores: FERREIRA,LEANDRO V.; PAROLIN,PIA; MATOS,DARLEY C.L.; CUNHA,DENISE A.; CHAVES,PRISCILLA P.; NECKEL,SELVINO O.
ABSTRACT The introduction of exotic species is considered as one of the major causes of biodiversity loss. The National Forest of Carajás is one of the largest mineral provinces in the world. Mining activities caused changes of the natural habitats, leaving degraded areas after the mineral exploitation. One of the mining areas within FLONA Carajás was used for the extraction of gold. In the process of exploitation, a huge depression was formed by the removal of soil which was mounded up nearby. To prevent soil erosion of these mounds, an exotic grass, Urochloa decumbens (Stapf) R.D.Webster (Poaceae) was planted. The objective of this study was to compare the impact of this non-native grass on species richness and species composition of the natural...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exotic species; Degraded areas; Floristic; Mining.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000200589

Effects of an atypical drought on the benthic macroinvertebrate community in a tropical reservoir
Provedor de dados: 49
Autores: 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

Biodiversity of benthic macroinvertebrates on hard substrates in the Currais Marine Protected Area, in southern Brazil
Provedor de dados: 49
Autores: 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

First record of the exotic channel catfish Ictalurus punctatus (Rafinesque 1818) (Siluriformes: Ictaluridae) in the Rio dos Sinos basin, RS, Brazil
Provedor de dados: 49
Autores: 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

Freshwater mollusks and environmental assessment of Guandu River, Rio de Janeiro, Brazil
Provedor de dados: 49
Autores: 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

First record of the invasive alien species Axis axis (Erxleben, 1777) (Artiodactyla: Cervidae) in Brazil
Provedor de dados: 49
Autores: 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

(Zavalla, Santa Fe, Argentina) Floristic-structural analysis of spontaneous little forests in the J. F. Villarino park (Santa Fe, Argentina)
Provedor de dados: 51
Autores: Franceschi,Eduardo A; Boccanelli,Silvia I.
Floristic-structural analysis of spontaneous little forests in the J. F. Villarino park (Santa Fe, Argentina). The anthropization process in the Pampean grassland has brought about an increasing presence of trees. In this study we analyzed the structure and composition of little forests which have resulted from the spontaneous multiplication of tree species in the J. F. Villarino Park, in Zavalla, Province of Santa Fe, Argentina. Using a plot sampling method, individuals were counted to determine density per species in the upper and treelets strata. Height and DBH of individuals in the upper stratum were recorded. Abundance-coverage of herbaceous and woody species saplings was estimated in the lower stratum. Soil humidity and ground-level light intensity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acer negundo; Exotic species; Invasive woody plants; Ligustrum lucidum; Native invasive species; Pampas trees; Patches.
Ano: 2013
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722013000200011