Environmental determinants of social wasp diversity and assemblage structure in an Amazonian archipelagic landscape  

作　　者：Jose Victor Alves Ferreira Alexandre Somavilla Maíra Benchimol Ana Filipa Palmeirim Carlos A.Peres Danielle Storck-Tonon 

机构地区：[1]Laboratório de Ecologia Aplicada àConservação,Universidade Estadual de Santa Cruz,Ilhéus 45662-900,Brazil [2]Instituto Nacional de Pesquisas da Amazônia,Coordenação de Biodiversidade,Manaus 69067-001,Brazil [3]CIBIO,Centro de Investigação em Biodiversidade e Recursos Genéticos,InBIO Laboratório Associado,Campus de Vairão,Universidade do Porto,Vairão 4485-661,Portugal [4]BIOPOLIS Program in Genomics,Biodiversity and Land Planning,CIBIO,Campus de Vairão,Vairão 4485-661,Portugal [5]School of Environmental Sciences,University of East Anglia,Norwich NR47TJ,UK [6]Instituto Juruá,Manaus,69057-060,Brazil [7]Programa de Pós-Graduação em Ambiente e Sistemas de Produção Agrícola(PPGASP),Universidade do Estado de Mato Grosso,Tangaráda Serra 78300-970,Brazil

出　　处：《Zoological Research(Diversity and Conservation)》2024年第2期121-129,共9页动物学研究（多样性与保护）（英文）

基　　金：supported by a NERC grant to C.A.P.(NE/J01401X/1);a Science Without Borders postdoctoral fellowship awarded to D.S.(CNPq grant 246975/2012-1);M.B.received a productivity grant from CNPq(304189/2022-7);supported by the inaugural Frontiers Planet Prize。

摘　　要：Hydropower development has become an important driver of habitat loss and fragmentation across lowland tropical forests.Despite ample evidence on the detrimental effects of insular habitat fragmentation on biodiversity,invertebrate taxa,that may be critical to ecosystem functioning,have been overlooked.We assessed the assemblage-level responses of social wasps to forest insularization induced by the Balbina Hydroelectric Dam in Central Brazilian Amazonia.Employing Malaise trapping,we captured wasps on 27 forest islands and three continuous forests.We constructed Generalized Linear Models and employed a model selection approach to examine the impact of local variables(fire severity(FIRE)and basal area of pioneer tree species(PIONEER))and landscape-scale variables(amount of habitat(COVER))on patterns of species richness,composition,and body size of wasps.A total of 374 individuals(29 species)were collected across all sampling sites.COVER was the main predictor of species richness,while PIONEER was the only variable that explained variation in community composition,with a negative effect on body size.Our results add evidence to the pervasive impacts of large hydroelectric dams on tropical forest biodiversity,and suggest that social wasps,among other invertebrates,can be used as bioindicators in infrastructure development projects.

关 键 词：Habitat amount hypothesis Habitat fragmentation Habitat loss Hydroelectric dams Invertebrates 

分 类 号：Q958[生物学—动物学]