Journal
ECOLOGICAL ENTOMOLOGY
Volume 45, Issue 3, Pages 466-475Publisher
WILEY
DOI: 10.1111/een.12816
Keywords
Araneae; climate; habitat structure; metacommunity structure; ponds
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Funding
- Brazilian National Council for Scientific and Technological Development (CNPq) [474892/2013-1]
- CNPq [422079/2018-9]
- CNPq at the UNISINOS Biology Graduate Program [151152/2018-7]
- CAPES (Coordination for the Improvement of Higher Level Personnel)
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1. The composition of local assemblages is assembled by an interplay of species sorting, mass effects and dispersal limitation processes. The contributions of assembly processes to metacommunity structure can change with ecosystem type and specificities of the study area. Spider composition is influenced by environmental features such as habitat structure and climate, and also by spatial distances between patches. However, little is known about the roles of assembly processes in spider metacommunity structure in wetlands. 2. The beta diversity patterns of spider assemblages were assessed in 24 temporary wetlands distributed along a latitudinal gradient in southern Brazil. The study also assessed the individual correspondence of beta diversity (and its turnover and richness components) with dissimilarities in habitat structure and climate, as well as with geographic distances, using Mantel and partial Mantel correlation tests and multivariate correlograms. 3. Turnover was the most important component of spider beta diversity. Mantel tests detected significant correlations of spider beta diversity with habitat structure. Partial Mantel tests detected significant relationships only between spider beta diversity (and the richness component) and geographic distances. Additionally, spider composition was more similar than chance on smaller scales. 4. These results evidenced a complex interplay of assembly processes explaining spider metacommunity structure in temporary wetlands. Although species-sorting processes associated with habitat structure were important in structuring local spider composition, mass effects and dispersal limitation across climatic zones played an important role on a broader scale.
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