Biodiversity thresholds in invertebrate communities: The responses of dung beetle subgroups to forest loss.

ABSTRACT: Extinction thresholds have been predicted to be critical values of habitat loss in which an abrupt reduction in populations occurs through the interaction between reduced habitat and increased isolation in the landscape. In communities, extinction thresholds are referred to as 'biodiversity thresholds'. The biodiversity threshold values documented so far occur between 30% and 50% of habitat cover in landscapes. However, the assessment of biodiversity thresholds has mainly focused on vertebrate and plant communities. Here, we evaluated the occurrence of biodiversity thresholds in dung beetle communities by sampling ten 3,600 ha Atlantic Forest landscapes with forest cover ranging from 5% to 55%. We analysed the response patterns (abundance, gamma and mean alpha diversity) of community subgr

SUBMITTER: Pinto Leite CM 

PROVIDER: S-EPMC6086426 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature