Araneofauna (Arachnida; Araneae) do Parque Estadual do Turvo, Rio Grande do Sul, Brasil

摘要: Podgaiski, L.R., Ott, R., Rodrigues, E.N.L., Buckup, E.H. & Marques, M.A.L. Araneofauna (Arachnida; Araneae) from Parque Estadual do Turvo, Rio Grande Sul, Brazil. Biota Neotrop. May/Aug 2007 vol. 7, no. 2 http://www.biotaneotropica.org.br/v7n2/pt/abstract?inventory+bn01107022007. ISSN 1676-0603. The araneofauna of the Neotropical region can be considered undersurveyed and lacking standardized inventories that used as a base for biodiversity studies. Spiders are recognized important components forest ecosystems appear to good organisms studies concerning standards. A survey was carried out in Brazil determine richness composition spider fauna. Park is protection area includes only remainder Floresta Alto Uruguai Four expeditions were conducted over period two years, Spring Autumn (2003-2005). main sampling technique beating tray, vegetation along trails inside park. Additionally, pitfall-traps, Winckler extractors, nocturnal manual collecting random samplings used. Shannon-Wiener (H') diversity indices rarefaction curves calculated tray samplings. total 8724 spiders belonging 37 families collected. Of these, 34% (2946) adults, distributed 31 families, 157 genera 447 morphospecies. richest Salticidae (23%) followed by Araneidae (18%), Theridiidae (16%) Thomisidae (9%). In samples 29 recorded. most abundant (including young individuals) (23%), (14%), (12%) Anyphaenidae (12%). Nineteen species presented percentage higher than 1% collected adult individuals. being Thwaitesia affinis O. P.-Cambridge, 1881 (Theridiidae), Tariona sp.1 (Salticidae) Misumenops argenteus (Mello-Leitao, 1929) (Thomisidae). periods revealed more individuals Autumn. did not reach asymptote, suggesting existence non-sampled species. registered this greatest observed second These information show importance ecosystem conservation