Dispersal shapes compositional and functional diversity in aquatic microbial communities.

ABSTRACT: Segregation and mixing shape the structure and functioning of aquatic microbial communities, but their respective roles are challenging to disentangle in field studies. We explored the hypothesis that functional differences and beta diversity among stochastically assembled communities would increase in the absence of dispersal. Contrariwise, we expected biotic selection during homogenizing dispersal to reduce beta and gamma diversity as well as functional variability. This was experimentally addressed by examining the compositional and functional changes of 20 freshwater bacterial assemblages maintained at identical conditions over seven growth cycles for 34 days and subjected to two consecutive dispersal regimes. Initial dispersal limitation generated high beta diversity and led to the re

SUBMITTER: Rain-Franco A 

PROVIDER: S-EPMC11651098 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature