Abstract

Spiders were collected by pitfall traps in three habitats at the Kola Gulf west coast (Murmansk Province) during the snowless period of 2010. A total of 88 spider species were found, 8 of which were new for the Kola Peninsula. The assemblages of the birch forest and the road embankment were the most similar in their species composition but different in the sets of dominant species and the seasonal dominance structure; the assemblage of the maritime meadow was distinguished by the highest capture rates. The species number and abundance of spiders in the assemblages decreased from spring to autumn; the species evenness also decreased while the fraction of the dominants (especially some of them) increased. The most abundant species in all the habitats studied were found to have different periods of maximum activity.

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