Abstract
The article deals with exposed to strong anthropogenic impact of biotopes spiders species community on the territory of Volgograd (South of the European territory of Russia). The material was collected using Barbers open soil traps with a fixing solution. Using the Simpson diversity index, the state of biotopes was evaluated, and the comparison of the species composition of spiders using cluster analysis based on the qualitative and quantitative aspects of the Jaccard index was carried out. In the course of the exploring, it was found out that the steppe biotopes of this region are least susceptible to anthropogenic load. In urban environment species are replaced with those that are more resistant to anthropogenic stress, but biological diversity is restored over time. The species composition of the near-aquatic biotopes most susceptible to the influence of the environment microclimatic conditions.
Highlights
The experience of recent years shows that the research of entomological communities as an integral part of biological monitoring is relevant in the constant anthropogenic transformation of the natural environment conditions
Earlier studies of spider biodiversity [2; 5; 11; 12] do not take into account the dry-steppe zone of the Russia’s European territory conditions, or the research objects are other living organisms, which indicates the relevance of the Lower Volga region araneofauna research
Taking into account the values of the diversity index, it can be concluded that the araneofauna of steppe biotopes experiences the least stress, and, is the most resistant to anthropogenic changes
Summary
The experience of recent years shows that the research of entomological communities as an integral part of biological monitoring is relevant in the constant anthropogenic transformation of the natural environment conditions. The araneofauna of the Rostov region and the Dzhanybek research station (the border of the Volgograd Region and the Republic of Kazakhstan) have been sufficiently studied among the territories nearby to the research region [7; 8; 9]. Earlier studies of spider biodiversity [2; 5; 11; 12] do not take into account the dry-steppe zone of the Russia’s European territory conditions, or the research objects are other living organisms, which indicates the relevance of the Lower Volga region araneofauna research. There are only a few publications related to ecological and faunal studies of this region: an annotated list of spiders of the Volgograd region is presented in the article by Ponomarev A.V., Khnykin A. S. [9]; seasonal changes in the species composition of the forest araneofauna of the Volgograd region and near-water biotopes of the Volgograd agglomeration are considered in own publications [11; 12]
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