Contrasting beta diversity of spiders,carabids,and ants at local and regional scales in a black soil region,northeast China  

作　　者：MEIXIANG GAO YUXI GUO JIE LIU Jinwen Liu Sina Adi Donghui Wu Tingyu Lu 

机构地区：[1]Department of Geography and Spatial Information Techniques,Ningbo University,Ningbo 315211,China [2]Ningbo Universities Collaborative Innovation Center for Land and Marine Spatial Utilization and Governance Research at Ningbo University,Ningbo 315211,China [3]Key Laboratory of Wetland Ecology and Environment,Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Changchun 130012,China [4]College of Earth Science,Jilin University,Changchun 130033,China [5]College of Land and Tourism,Luoyang Normal University,Luoyang 471934,China,College of Earth Science,Jilin University,Changchun 130033,China [6]Jilin Academy of Agricultural Sciences,Changchun 130033,China [7]Department of Soil Science,College of Agriculture and Bioresources,University of Saskatchewan,51 Campus Drive,Saskatoon,SK S7N5A8,Canada

出　　处：《Soil Ecology Letters》2021年第2期103-114,共12页土壤生态学快报（英文）

基　　金：the National Natural Sciences Foundations of China(grant numbers 41430857,41871042);Special Foundation for National Science and Tech no logy Basic Research Program of China(grant nu mber 2018FY1003000).

摘　　要：Understanding the factors determining the formation of each community and metacommunity across a landscape is one of the most important ideas in soil animal ecology.However,the variables and parameters that shape soil arthropod communities in agroecosystems have not been resolved.These arthropods can serve as important bioindicators of field management and its sustainability.We sampled five com plantations in each of three locations across a region spanning 600 km to come up with these determinants of the community structure of ground-dwelling spiders(Erigoninae:Araneae),carabids(Coleoptara:Carabidae),and ants(Hymenoptera:Formicidae).The analysis of the five fields within each of the three locations represent our local-scale samples,while the comparisons of the 15 sites across all three locations represent the regional scale samples.We tested the hypothesis that in the models we sampled,environmental/soil variables would drivecommunity assembly locally(within location comparisons),but at the regional scale(between location comparisons),climatic and spatial variables would drive metacommunity assembly.The outcomes of our study showed distinct communities at each of the three locations when compared across regions but locally,fields were similar in species composition,as expected.Locally,spatial variables were important but not soil variables,regulated species richness and abundance.Turnover contributed more than nestedness to explain the biodiversity of spiders,carabids,and ants at both the local and regional scales.Neither purely climate variables,nor purely soil or spatial variables were significant enough explanations for the regional scale arthropod community composition.However,spatially structured environmental factors contributed most to explain the patterns supporting our hypothesis.We conclude that biodiversity in this agroecosystem area can be promoted by a mosaic of land uses being encouraged to increase landscape complexity at the regional scale.

关 键 词：Species turnover NESTEDNESS Community structure AGROECOSYSTEM 

分 类 号：Q96[生物学—昆虫学]