E. P. Ieshko, A. V. Korosov, I. A. Nikonorova, S. V. Bugmyrin
{"title":"Species Richness of Helminth Communities in Relation to Host Abundance Variations (the Case of the Common Shrew Sorex araneus)","authors":"E. P. Ieshko, A. V. Korosov, I. A. Nikonorova, S. V. Bugmyrin","doi":"10.1134/s2079086423080066","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The aim of this study was to compare the parameters of the parasite species richness in common shrew <i>Sorex araneus</i> during the periods of its highest and lowest population abundance. The analysis was based on a comparative assessment of parasitic infracommunities and accumulation curves of helminth species richness. The significance of the observed differences was determined by analyzing the coefficients of the power regression equation modeling the dynamics of accumulation of species richness of parasitic communities. It has been shown that with an increase in the number of common shrews, there is a decrease in the average values of species richness of parasitic infracommunities, while their β-diversity increases. Differences in the accumulation curves of parasite species richness at low and high host abundance are determined by the peculiarities of the distribution of species richness in helminth infracommunities. During the period of relative depression in the number of <i>S. araneus</i>, the structure of parasite infracommunities was dominated by individuals with average values of species richness. During years of high shrew abundance, their population is characterized by a predominance of individuals with a poor species richness of parasites.</p>","PeriodicalId":9047,"journal":{"name":"Biology Bulletin Reviews","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biology Bulletin Reviews","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1134/s2079086423080066","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
The aim of this study was to compare the parameters of the parasite species richness in common shrew Sorex araneus during the periods of its highest and lowest population abundance. The analysis was based on a comparative assessment of parasitic infracommunities and accumulation curves of helminth species richness. The significance of the observed differences was determined by analyzing the coefficients of the power regression equation modeling the dynamics of accumulation of species richness of parasitic communities. It has been shown that with an increase in the number of common shrews, there is a decrease in the average values of species richness of parasitic infracommunities, while their β-diversity increases. Differences in the accumulation curves of parasite species richness at low and high host abundance are determined by the peculiarities of the distribution of species richness in helminth infracommunities. During the period of relative depression in the number of S. araneus, the structure of parasite infracommunities was dominated by individuals with average values of species richness. During years of high shrew abundance, their population is characterized by a predominance of individuals with a poor species richness of parasites.
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