Spider community in Braziukai pine bog, Lithuania

Abstract

Spiders were studied in Braziukai pine bog in Central Lithuania. Material was collected in pitfall traps from March of 2011 year to January of 2012. The species richness, evenness and different biodiversity indices of spider assemblages were studied. In total, 279 individuals from 34 spider species from 9 families were collected. Lycosidae family members were most abundant (23 species detected), conversely Gnaphosidae family, with only one species detected, were very rare. Pirata uliginosus was the most common species in the pine bog of Braziukai. Species richness indices (Menhinick (2.04), Margalef (5.86)) were quite high and biodiversity indices (Shannon–Wiener (2.51), Simpson (0.87)) were quite low comparing to other researches’ results from Lithuanian bogs. According to our data spider community in Braziukai pine bog has some unique species composition comparing to other Lithuanian pine bogs