Sokolova S.S.1, Esyunin S.L.2, Artemenko E.E.1 2023. [Spiders (Arachnida: Aranei) of the Ilmeny State Nature Reserve: results of 80 years of fauna research with a review of rare species] // Euroasian Entomological Journal. Vol.22. No.3: 168–176 [in Russian, with English summary].
1 South Urals Federal Research Center of Mineralogy and Geoecology of the Urals Branch of the Russian Academy of Sciences, Ilmeny Reserve territory, Chelyabinskaya Oblast, Miass 456300 Russia. E-mail: sophia.sokkolova@gmail.com; Art_k_e@inbox.ru
2 Perm State National Research University, Bukireva Str. 15, Perm 614990 Russia. E-mail: Sergei.Esyunin@psu.ru
doi 10.15298/euroasentj.22.03.10
ABSTRACT. The Ilmeny State Nature Reserve has been a protected area for more than a hundred years, and in 1937 the first data on its spider fauna were obtained. However, most of the information on its diversity of this group dates back to the end of the 20th century. This article summarizes both the literature data and the results of processing old collections and original materials. For the first time, 40 species are listed for the Ilmeny Reserve, of which 5 are new for the Chelyabinsk Region and 6 for the Southern Urals as a whole. Currently, 312 species (152 genera in 24 families) are known for the reserve, the diversity of spider species of the Reserve is moderately higher (57%) than in Chelyabinskaya Oblast and represents about 75% of species registered for the Southern Urals. The faunal taxonomic index for the Ilmeny Nature Reserve spider fauna is Lin(28)-Lyc(12)-Gna(9)-(Sal,The)(8)-(Tho,Ara). The Reserve’s spider fauna belongs to the polytaxon type; it differs from both the Urals mountain faunas and the Western Siberia lowland southern taiga faunas, being closer to the forest-steppe Trans-Urals faunas. According to a number of genera, which includes more than 10 species, the Ilmeny Reserve fauna is similar to the local forest-steppe Troitskiy Reserve fauna, the Southern Urals regional and the southern taiga Western Siberia fauna. The reserve is home to Dolomedes plantarius (Clerck, 1757), a protected species (NT = close to threatened), and five critical species, namely Alopecosa azsheganovae Esyunin, 1996, Erigonoplus simplex Millidge, 1979, Pardosa maisa Hippa et Mannila, 1982, Theridion innocuum Thorell, 1875 and Psammitis bonneti (Denis, 1937).
KEY WORDS: spider fauna, local fauna, faunal taxonomic index, the Southern Urals.
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