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Trait‐dependent response of dung beetle populations to tropical forest conversion at local and regional scales
Author(s) -
Nichols Elizabeth,
Uriarte María,
Bunker Daniel E.,
Favila Mario E.,
Slade Eleanor M.,
Vulinec Kevina,
Larsen Trond,
Vaz-de-Mello Fernando Z.,
Louzada Julio,
Naeem Shahid,
Spector Sacha H.
Publication year - 2013
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.1890/12-0251.1
Subject(s) - biology , trait , ecology , dung beetle , biodiversity , context (archaeology) , population , tropics , demography , paleontology , scarabaeidae , sociology , computer science , programming language
Comparative analyses that link information on species' traits, environmental change, and organism response have rarely identified unambiguous trait correlates of vulnerability. We tested if species' traits could predict local‐scale changes in dung beetle population response to three levels of forest conversion intensity within and across two biogeographic regions (the Neotropics and Afro‐Eurasian tropics). We combined biodiversity surveys, a global molecular phylogeny, and information on three species' traits hypothesized to influence vulnerability to forest conversion to examine (1) the consistency of beetle population response across regions, (2) if species' traits could predict this response, and (3) the cross‐regional consistency of trait–response relationships. Most beetle populations declined following any degree of forest conversion; these declines were strongest for Neotropical species. The relationship between traits and population trend was greatly influenced by local and biogeographic context. We discuss the ability of species' traits to explain population trends and suggest several ways to strengthen trait–response models.