Spiders in Bangtaesan Mountain in Gangwon-do, Korea

Abstract

In order to qualitatively examine the spider fauna of Bangtaesan (Mt.) of Inje-gun, Gangwon-do, 4 collection sessions were conducted between May and October of 2010. A total of 479 spiders were collected in Bangtaesan (Mt.), at 128 species of 86 genera in 27 families, and coniferous forest zone or mixed tree forest zone, characterized by the dominance of conifers, displayed higher number of species than decideous forest zone. In terms of family, Linyphiidae included the highest number of species (18 species, 14.1%), followed by Theridiidae (16 species, 12.5%), Araneidae (14 species, 11.0%), Salticidae (13 species, 10.2%) and Tetragnathidae (9 species, 7.0%). Four species, Nesticella mogera of family Nesticidae, Clubiona lena of Clubionidae, Phrurolithus sinicus of Corinnidae and Synagelides zhilcovae of Salticidae, were discovered for the first time in Korean mountains. Zoogeographically, spiders in Bangtaesan (Mt.) displayed 1 cosmopolitan species, with holarctic region and palearctic region species making up 14.1% and endemic species making up 7.8% of the species observed during the study. This shows that spider fauna of Bangtaesan (Mt.) experience northern influence. The result of this study provides an inventory of mountain spiders and information regarding the region's biodiversity, and the results will not only become useful for the effective management and long-term use of national biological resources, but will also become a highly important data for the preservation of biodiversity based on changes in distribution, time and space.