Endemic, cosmopolitan, and generalist taxa and their habitat affinities within a coastal marine microbiome.

ABSTRACT: The relative prevalence of endemic and cosmopolitan biogeographic ranges in marine microbes, and the factors that shape these patterns, are not well known. Using prokaryotic and eukaryotic amplicon sequence data spanning 445 near-surface samples in the Southern California Current region from 2014 to 2020, we quantified the proportion of taxa exhibiting endemic, cosmopolitan, and generalist distributions in this region. Using in-situ data on temperature, salinity, and nitrogen, we categorized oceanic habitats that were internally consistent but whose location varied over time. In this context, we defined cosmopolitan taxa as those that appeared in all regional habitats and endemics as taxa that only appeared in one habitat. Generalists were defined as taxa occupying more than one but not al

SUBMITTER: James CC 

PROVIDER: S-EPMC11437011 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature