{"title":"Are Soil Nematode Communities Altered by Tree Introduction and Prolonged Cultivation in the Subarctic Region?","authors":"D. S. Kalinkina, A. A. Sushchuk, E. M. Matveeva","doi":"10.1134/s1995425524700318","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This study is focused on soil nematode communities in undercrown areas of tree plants introduced to and cultivated for a long time in the botanical garden on Bolshoy Solovetsky Island (Arkhangelsk oblast, Russia). Soil nematode communities of natural forests (pine-, spruce-, and birch stands) are studied as the control. The study has demonstrated that the taxonomic diversity and abundance of nematodes, as well as the proportion of plant parasites in the trophic structure of nematode communities in the soil under introduced trees, are higher compared to natural forests. The ecological indices (structure index SI and enrichment index EI) change nonuniformly and so have poor performance as tools for evaluating the consequences of the plant introductions for the soil ecosystem. Correlation analysis reveals a significant positive relationship between the content of carbon and nitrogen in soil and the absolute and relative abundance and the taxonomic diversity of plant parasites, as well as significant negative relationships between C : N and fungal feeders, as well as between the soil pH and the taxonomic diversity of nematodes and the relative abundance of bacterial feeders and EI. The entomopathogenic nematode <i>Steinernema affine</i> Bovien revealed on the island has been reported for the first time in Russia.</p>","PeriodicalId":50619,"journal":{"name":"Contemporary Problems of Ecology","volume":"52 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2024-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Contemporary Problems of Ecology","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1134/s1995425524700318","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ECOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
This study is focused on soil nematode communities in undercrown areas of tree plants introduced to and cultivated for a long time in the botanical garden on Bolshoy Solovetsky Island (Arkhangelsk oblast, Russia). Soil nematode communities of natural forests (pine-, spruce-, and birch stands) are studied as the control. The study has demonstrated that the taxonomic diversity and abundance of nematodes, as well as the proportion of plant parasites in the trophic structure of nematode communities in the soil under introduced trees, are higher compared to natural forests. The ecological indices (structure index SI and enrichment index EI) change nonuniformly and so have poor performance as tools for evaluating the consequences of the plant introductions for the soil ecosystem. Correlation analysis reveals a significant positive relationship between the content of carbon and nitrogen in soil and the absolute and relative abundance and the taxonomic diversity of plant parasites, as well as significant negative relationships between C : N and fungal feeders, as well as between the soil pH and the taxonomic diversity of nematodes and the relative abundance of bacterial feeders and EI. The entomopathogenic nematode Steinernema affine Bovien revealed on the island has been reported for the first time in Russia.
期刊介绍:
Contemporary Problems of Ecology is a multidisciplinary periodical that publishes original works on the following subjects: theoretical and methodical issues of ecology, regional aspects of ecology, regional ecological disasters, structure and functioning of ecosystems, anthropogenic transformation of ecosystems. All basic aspects of modern ecology, including the most complicated interactions between living organisms and their environment, are presented. Some of the journal issues are dedicated to global changes in biological diversity at various levels of organization (populations, species, ecosystems) principles and methods of nature conservation.