Dispersal ability and niche breadth influence interspecific variation in spider abundance and occupancy.

ABSTRACT: The relationship between species local abundance and their regional distribution (occupancy) is one of the most extensively recognized and investigated patterns in ecology. While exceptions exist, the generally held model is that locally abundant species also tend to be more widespread geographically. However, there is only a limited understanding of both the mechanisms driving this relationship, and their scale dependency. Here we use occupancy and abundance data for 123 species of spider from across the Canary Islands to understand how both dispersal ability and niche breadth might mediate variation among species for local abundance and occupancy. We test the predictions that (i) dispersal ability explains variation among species for both abundance and occupancy, and (ii) species with a

SUBMITTER: Suarez D 

PROVIDER: S-EPMC10170352 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature