How does invasion degree shape alpha and beta diversity of freshwater fish at a regional scale?

ABSTRACT: Freshwater ecosystems appear more vulnerable to biodiversity loss due to several anthropogenic disturbances and freshwater fish are particularly vulnerable to these impacts. We aimed to (1) identify the contribution of land use, spatial variables, and invasion degree in determining freshwater fish alpha (i.e., species richness) and beta (i.e., local contributions to beta diversity, LCBD) diversity, evaluating also the relationship between invasion degree and nestedness ( β _nes) and turnover ( β _sim) components of beta diversity. (2) Investigate the relationship between alpha diversity and LCBD, under the hypothesis that alpha diversity and LCBD correlate negatively and (3) investigate the relationship between species contributions to beta diversity (SCBD) and species

SUBMITTER: Gavioli A 

PROVIDER: S-EPMC9643121 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature