Seasonal variability in the structure and functional diversity of psammic rotifer communities: role of environmental parameters

摘要: Data on the variability in structure and functioning of interstitial rotifer assemblages are rare; however, this knowledge is essential for understanding their role food web. In present study, we characterized psammic communities terms dominance structure, trophic traits, taxonomic functional diversity at a seasonal scale freshwater lakes across Estonia coastal beaches Baltic Sea. A total 42 species were found from 66 lakes. Functional indices did not exhibit smaller neither they respond better to changes environment compared indices. However, there differences how environmental variables affected these two broad groups response variables. The taxonomy-based primarily driven by temperature regime, sediment characteristics anthropogenic stressors, whereas trait-based function ecosystem types (freshwater or brackish water). strongly distinguished between habitats indicating that rotifers have different roles webs fresh water environments.