Uma luz na escuridão: desvendando os processos estruturadores da fauna cavernícola via partição de variância

• Ano de defesa: 2017
• Autor(a) principal: Augusto Milagres e Gomes
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; Brasil; ICB - INSTITUTO DE CIÊNCIAS BIOLOGICAS; Programa de Pós-Graduação em Ecologia, Conservacao e Manejo da Vida Silvestre; UFMG
• Palavras-chave em Português: Escalas espaciais; Carste ferruginoso; Dispersão; Cavernas; PCNM; Ecologia; Carste; Fauna
• Link de acesso: http://hdl.handle.net/1843/36037

The comprehension of ecological processes acting at different scales of space, time, organization and evolution is a crucial task to a better assessment of the organization of biological communities. In this paper we tested the influence of environmental variables at different special scales and the spatial distribution of sampling units over the structure and composition of cave fauna of a karstic ironstone province in northern Minas Gerais state, Brazil. The invertebrate richness is influenced by the characteristics of the micro and the meso scales, and its composition is influenced just by the meso scale. The bat richness and composition wasn’t influenced by any of the evaluated scales. Even if the natural selection was important at the micro and meso scales, our results suggest a central role of dispersal processes over the structuring of subterranean communities. From this we discuss some suitable conservation actions for karstic ironstone ecosystems, characterized by environmental peculiarities and high richness and endemisms of species.