Nekhaeva A.A. 2022. New data on spiders (Arachnida: Aranei) of the Central Yamal Peninsula, with notes on biotopic preferences of the dominant species // Arthropoda Selecta. Vol.31. No.3: 351–362 [in English].
A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky prospect 33, Moscow 119071, Russia. E-mail: adrealinea@gmail.com
doi: 10.15298/arthsel. 31.3.12
ABSTRACT: Studying the local fauna of spiders in the vicinity of the Seyakha village (Yamal Peninsula, Siberian Arctic), I identified a total of 47 species belonging to seven families. Five species (Agyneta decora, A. ripariensis, Masikia caliginosa, Metopobactrus prominulus, and Walckenaeria clavicornis) have been recorded for the fauna of Yamal for the first time. The fauna of the Southern, Central, and Northern Yamal differ in species richness (comprised of a total of 165, 61, and 36 species, respectively). I compared the effectiveness of estimations of the species richness for spiders at high latitudes using pitfall traps and a sifter and found no significant differences between these methods. The composition of the dominant species differed between the sample sets collected using pitfall traps and a sifter, although all of these species were present in both sample sets. I found no clear biotopic preferences for populations of the majority of dominant spider species in the Central Yamal.
KEY WORDS: Araneae, Arctic, habitat preferences, species list, tundra, collecting methods.