Inventário da araneofauna​ ​em dois fragmentos de matas no Município de Cerro Largo, Rio Grande do Sul

Abstract

Spiders are considered one of the most diverse groups in the world. The Neotropical Region is considered poorly sampled before its araneofauna, and the spiders are bioindicators of habitat quality. Rio Grande do Sul (RS) is one of the best sampled states in Brazil in relation to araneofauna, however, the researches are focused on specific regions such as Vale do Sinos, Central Region, West Frontier and the Southern Region. this, we observe that the 1northwest region is not well studied. The objective of this work was to carry out an inventory of araneofauna in two forest fragments in Cerro Largo, RS. Three collection methods (Beating collection, active collection and pitfall trap) were applied during 12 months, from October 2018 to September 2019. During this period, 1,528 spiders belonging to 76 morphospecies were collected. 35 families (3 families from Mygalomorphae and 32 Araneomorphae), 25 genera and 18 identified species. Of the spiders collected, 828 were adult individuals and 700 young. These results contributed to increase the knowledge of the Rio Grande do Sul state spider community, providing a basis for future studies and subsidies for conservation programs in the sampled areas.