Respective roles of recent hedges and forest patch remnants in the maintenance of ground-beetle (Coleoptera: Carabidae) diversity in an agricultural landscape

摘要: We compared three kinds of habitats: small remnants native forests, recent hedges and barley crops, in order to investigate their respective roles the maintenance carabid-beetle diversity a 950-ha area an intensive agricultural landscape. Carabid faunas differed weakly from these found crops. In particular, had few typical forest carabid species large number open-area or ubiquitous species. Different approaches measurement α β-diversity (classical indices, additive partitioning Simpson's index) showed similar results: supported high α-diversity but habitat types were quite overall, with weak differences between open closed disturbed undisturbed habitats.