Conservação de espécies em áreas de monocultura de soja no sudoeste goiano: uma avaliação usando larvas de anfíbios anuros

Detalhes bibliográficos
Ano de defesa: 2009
Autor(a) principal: VAZ-SILVA, Wilian lattes
Orientador(a): BASTOS, Rogério Pereira lattes
Banca de defesa: Não Informado pela instituição
Tipo de documento: Tese
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de Goiás
Programa de Pós-Graduação: Doutorado em Ciencias Ambientais
Departamento: Ciências Agrárias
País: BR
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tde/345
Resumo: The basic knowledge of the answer of the species to the anthropic and natural perturbations on environments is the first step in the development of management strategies to the conservation biology. This study analyzes the pattern of occurrence of anurans species in relation of habitat, considering two different landscape uses from Jataí municipality, southwestern Goiás State, Central Brazil. Anurofaunal composition on Jataí represented 24% of anuran diversity of Goiás State, with great similarity with Aporé municipality, hydrographic sub-basin of the river Corrente. The relation between the species richness in seven municipalities with environmental and social attributes were non-significant. Considering the tadpoles assemblages in Jataí were sampled 40 ponds (24 distant of the monoculture and 16 located in the proximities of the monoculture). The study registered 4.529 specimens, classified in four families, 18 anuran species, presenting Scinax fuscovarius, Dendropsophus minutus and Eupemphix nattereri the most common species. The mean richness of species by sampled pond was significantly different in the families Hylidae and Leptodactylidae. The results showed that ponds distant of monoculture were more heterogeneous and possess a biggest diversity of species. The Canonical Correspondence Analyses showed the biggest predictive power to the environmental variables: predator types; distance of forest fragments; depth; and, hydroperiod. Spatial and temporal attributes were important to the species composition. Ponds distant to the monoculture presented (in mean) a bigger number of types of microhabitat and significant relation between the availability and the utilization by tadpoles. Significant difference was observed between niche breadths in the categories, with biggest values in the ponds distant to the monoculture. The species in ponds distant to the monoculture showed high plasticity in the environmental occupancy. The relation between spatial niche overlap and ecomorphological and phylogenetic patterns to the pars of the species were non-significant in the multivariate context. The results will subsidize actions directed to the management in agricultural areas in the scope of Conservation Biology