On the spider fauna (Arachnida: Aranei) of the Kanin Peninsula and Kolguev Island, Nenets Autonomous Okrug, Russia

New data on spiders (Arachnida: Aranei) of the Central Yamal Peninsula, with notes on biotopic preferences of the dominant species

“…The significance of differences between the number of species collected by different methods was assessed using ttest. Similarity percentage analysis (SIMPER; also performed in PAST 4.04) was used to identify the individual contribution of species to dissimilarities between the two sample sets [Esyunin, Efimik, 1996;Osipov, 2003;Tanasevitch, Koponen, 2007;Esyunin, Laetin, 2009;Tanasevitch et al, 2009Tanasevitch et al, , 2020Coulson et al, 2014;Marusik, Koponen, 2015;Tanasevitch, Rybalov, 2015;Tanasevitch, Khrisanova, 2016;Marusik et al, 2016;Tanasevitch, 2017a,b;Tanasevitch, Khruleva, 2017, with additions;Nekhaeva, 2018;2020;Nekhaeva et al, 2019]. Data on the distribution of individual species were obtained from the sources listed above.…”

“…K. Eskov [1986bEskov [ , 1988 suggested that species from Siberia have the best conditions to penetrate into Northern Europe due to the influence of zonal factors. New data on the local spider faunas of the northeastern part of the Russian Plain and Yamal Peninsula confirmed this conclusion [Mazura, 2000;Mazura, Esyunin, 2001;Tanasevitch, Koponen, 2007;Esyunin, Laetin, 2009;Tanasevitch, Nekhaeva, 2014;Tanasevitch, Rybalov, 2015;Tanasevitch, Khruleva, 2017;Makarova et al, 2019;Nekhaeva, 2020;ets.]. For example, many Siberian spider species were found in the Northeastern Europe.…”

“…For example, many Siberian spider species were found in the Northeastern Europe. For the Yugorsky Peninsula, the proportion of such species in the fauna was 54% [Tanasevitch, Khruleva, 2017]; in the Bolshezemelskaya tundra, 31% [Makarova et al, 2019]; in the Pechora delta, 18% [Mazura, 2000]; on the Kanin Peninsula, 8% [Nekhaeva, 2020]; and in the southeastern part of the Belomorsko-Kuloyskoe Plateau (Pinezhsky Nature Reserve), 3% [Tanasevitch, Nekhaeva, 2014]. In addition, two species with a Siberian distribution range (Perregrinus deformis (Tanasevitch, 1982) and Kikimora palustris Eskov, 1988) were also found in the Northern Fennoscandia [Koponen et al, 2002;Nekhaeva, 2012].…”

“…To date, most of the available data on the spiders of the Siberian Arctic has been obtained from isolated studies conducted at the local level in different sectors of the Arctic. The predominant collection methods were pitfall traps and sifter, as well as manual collection from soil samples or moss and litter samples [Eskov, 1986b[Eskov, , 1988Eskov, Marusik, 1994;Khruleva, 2009;Tanasevitch, Rybalov, 2015;Marusik, Koponen, 2015;Marusik et al, 2016;Tanasevitch, Nekhaeva, 2016;Tanasevitch, Khrisanova, 2016;Tanasevitch, Khruleva, 2017;Khruleva et al, 2018;Nekhaeva, 2018Nekhaeva, , 2020Tanasevitch et al, 2020;etc.]. Between the aforementioned methods, pitfall traps and sifter are easier to use and are suitable for the most commonly occurring groups (surface and litter dwelling species).…”