Terrestrialization of sediment bacterial assemblages when temporary rivers run dry.

ABSTRACT: Bacterial communities in river sediments are shaped by a trade-off between dispersal from upstream or nearby land and selection by the local environmental conditions. In temporary rivers (i.e. those characterized by long drying periods and subsequent rewetting) seasonal hydrological dynamics shape bacterial communities by connecting or disconnecting different river habitats. In this study, we tracked and compared the temporal and spatial changes in the composition of bacterial communities in streambed sediments and floodplain habitats across both permanent and intermittent river segments. Our findings revealed that environmental selection played a key role in assembling bacterial communities in both segments. We argue that distinct environmental features act as filters at the local scale,

SUBMITTER: Freixa A 

PROVIDER: S-EPMC11460285 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature