Aranei, Lycosidae in Coal Open Pit Dump Ecosystem in Kuzbass

Abstract

Using one of the Kuzbass coal mines as an example, it is shown that Lycosidae is the most important group of spiders that settles in reclaimed dumps at the early stages of overgrowing. The most commonand widespread wolf spiders on the dumps are Alopecosa accentuata, Alopecosa cuneata, and Xerolycosa miniata. The maximum of species diversity and dynamic density was discovered on the slope of the 15-yearolddump, where 14 species of Lycosidae were observed, and the dynamicdensity reached almost 300 specimens per 100 trap-days. The greatest number of the family Lycosidae spiders’ species occurred on the different aged slopes of dumps at the end of June, while on the terraces - in the firsthalf of June. The highest dynamic density of wolf spiders on the slopes and terraces of the reclaimed dumps has been registered in the second half of June. It was close to 300 specimens per 100 trap-days on the slope of the15-year-old dump. This parameter was more stable and had a bigger valueat the control area in early August than on the slopes and terraces of the dumps.