Componentes geográfico, ecológicos e evolutivos do nicho das espécies de carnívoros (Carnivora: Mammalia) do Novo Mundo

• Autor(a) principal: CRUZ, Mary Joyce Ribeiro da
• Data de Publicação: 2009
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFG
• Texto Completo: http://repositorio.bc.ufg.br/tede/handle/tde/2549
• topic: Nicho; distribuição potencial das espécies; Filogenia; Carnívoros; 1.Mammalia - nicho 2.Distribuição potencial 3.Carnívoros 4.Filogenia; Niche; potential distribution of species; Phylogeny; Carnivores; CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA

The questions around species niche have sought to unveil why a species is where it is and it is not where it is not, so it is well known that a lot of factors can be determinant in this discussion. Thus, in this study we examined the relationship between niche and geographical distance, life history and phylogenetic components to the New World carnivores. The data used in our analyses were obtained from datasets available online and from literature sources. We used Mantel s test to evaluate the correlation among the data matrices in NTSys software. Significant correlations were found between niche and geographical distance (r =-0,4068 e P <0,0001) and between life history and geographical distance (r = -0,1136 e P= 0,0024). These results suggest that species that are spatially close are more similar in terms of niche and life history. We also observed that, among others factors, interespecific interactions has an important effect in structuring ecological communities. New tests are still necessary in future to generate new information about carnivore s niche and their components.