Marusik Yu.M.1,2, Mikhailov K.G.3 2025. Northern limits of distribution of the spider families (Aranei) occurring the Boreal Province of the Holarctic Realm. Families from Amaurobiidae to Corinnidae // Arthropoda Selecta. Vol.34. No.4: 611–616 [in English].
1 Institute for Biological Problems of the North RAS, Portovaya Str.18, Magadan 685000 Russia.
2 Department of Zoology & Entomology, University of the Free State, Bloemfontein 9300, South Africa.
3 Zoological Museum of the Moscow State University, Bolshaya Nikitskaya Str. 2, Moscow 125009 Russia.
Yuri Marusik: yurmar@mail.ru ORCID https://orcid.org/0000-0002-4499-5148
Kirill Mikhailov: mikhailov2000@gmail.com ORCID https://orcid.org/0000-0002-3304-5470
doi: 10.15298/arthsel.34.4.13
ABSTRACT. A study of the northern distribution limits of ten spider families revealed various patterns within the Boreal Province of the Holarctic Realm. It was shown that the families Amaurobiidae, Araneidae, Argyronetidae, and Clubionidae penetrate into the tundra zone, with Araneidae having the most uniform northern boundary across the entire Holarctic. It was determined that a number of families have similar northern limits in Eurasia and western North America, but are shifted further south in eastern North America. The family Cheiracanthiidae reaches 65°N in Yakutia, while in other regions it is limited to 50–62°N. It was demonstrated that Agelenidae extends further north in North America than in Eurasia. It was established that the northern boundaries of Araneidae and Argyronetidae are formed by several genera. It was concluded that the families Atypidae, Anyphaenidae, Cicurinidae, and Cheiracanthiidae penetrated into the Boreal Province relatively recently and are confined to its southern and central parts.
KEY WORDS: Araneae, biogeography, Palaearctic, Nearctic.