Relationship between species richness and abundance in macrozoobenthos communities (based on the example of river section in the Neman basin)
https://doi.org/10.29235/1561-8323-2025-69-5-399-403
Abstract
Rank distribution of macrozoobenthos abundance on the different sites of the Neman River basin was analyzed. The number of species correlated with the total abundance of macrozoobenthos. The type distribution of species corresponded to the lognormal distribution. The evenness coefficients in communities averaged 0.7. The low coefficient of the relationship between evenness and total abundance of macrozoobenthos species (r = 0.28, р > 0.05) indicated a slight overlap of ecological niches in the macrozoobenthos communities. This was due to wide range of functional trophic groups that leads to reduce competition between species.
Supporting agencies: This study was supported by the Central Research Institute for Complex Use of Water Resources (project no. 277/2021)
About the Author
V. P. Semenchenko
Scientific and Practical Center for Bioresources of the National Academy of Sciences of Belarus
Belarus
Belarus
Semenchenko Vitaly Р. – Corresponding Member, D. Sc. (Biology), Professor, Chief Researcher.
27, Akademicheskaya Str., 220072, Minsk
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