Transformando tropeços em passos de dança: o uso de espécies exóticas para estudos biogeográficos

• Ano de defesa: 2008
• Autor(a) principal: LIMA JUNIOR, Dilermando Pereira
• Orientador(a): DINIZ FILHO, José Alexandre Felizola
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Goiás
• Programa de Pós-Graduação: Mestrado em Ecologia e Evolução
• Departamento: Ciências Biológicas - Biologia
• País: BR
• Palavras-chave em Português: Espécies exóticas; Peixes exóticos; Conservação de nicho
• Palavras-chave em Inglês: Exotic species; Invasive species; Exotic fish; Niche conservatism
• Área do conhecimento CNPq: CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA::ECOLOGIA TEORICA
• Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tde/2548

The establishment of exotic species is known for the negative impacts it causes. However, it can be used as models to study the ecological and evolutionary causes of biogeography patterns and access whether the niche conservatism is the determinant of the species limits distribution. The main purpose of this study is to evaluate the difference between pools of exotic fish species in biogeographical regions of the world based on the theories of Niche Conservatism and Evolutionary Dynamics of Latitudinal Gradients of Diversity. We found a strong tendency of the niche conservatism with exotic fishes, but no phylogentic structures of the invaders fishes were found. Therefore, predictive models that purpose to evaluate the potential invasion of fishes has to, include extrinsic factors as climatic conditions, propagule pressure, environmental disturbance, human use and intrinsic factors as parental care and body size of the species.