Understanding the effects of phosphorus on diatom richness in rivers and streams using taxon-environment relationships.

ABSTRACT: Changes in phosphorus concentrations affect periphytic diatom composition in streams, yet we rarely observe strong relationships between diatom richness and phosphorus. In contrast, changes in conductivity are strongly associated with differences in both diatom composition and richness. We hypothesised that we could better understand the mechanisms that control the phosphorus-richness relationship by examining relationships between phosphorus and the occurrence of individual diatom taxa, comparing these with relationships between conductivity and taxon occurrence, and documenting how niche breadths of taxa affect richness patterns. We estimated relationships between phosphorus and taxon occurrence using DNA metabarcoding data of diatoms collected from 1,811 sites distributed across the con

SUBMITTER: Yuan LL 

PROVIDER: S-EPMC10395338 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature