Centro de Estudios Parasitológies y de Vectores CEPAVE (CCT- CONICET- La Plata) (UNLP), Calle 2 N° 584, (1900) La Plata, Argentina.
J Insect Sci. 2012;12:31. doi: 10.1673/031.012.3101.
The diversity, abundance, spatial distribution, and phenology of the mygalomorph spider community in the "Ernesto Tornquist" Strict Nature Reserve were analyzed in this study. Located in southwestern Buenos Aires, Argentina, the Reserve is representative of the Ventania system, which is a sigmoidal mountain belt 180 km in length. This exceptional hilly ecosystem is home for many endemic species and rich native fauna and flora. Spider abundance was sampled monthly from October 2009 to October 2010 by hand capture and pitfall traps on grassland slopes. The species recorded in the study area were: Actinopus sp.1 (Actinopodidae); Grammostola vachoni and Plesiopelma longisternale (Theraphosidae); Acanthogonatus centralis (Nemesiidae); and Mecicobothrium thorelli (Mecicobothriidae). Grammostola vachoni and Acanthogonatus centralis were the dominant species in hand capture and pitfall traps, respectively. The seasonal variation, diversity, and abundance of the mygalomorph community are analyzed and discussed here. The Mygalomorphae of the Ventania system comprises an important group of sedentary and cryptozoic spiders that seem to be highly dependent on habitat type and environmental factors.
本研究分析了位于阿根廷布宜诺斯艾利斯西南部的“埃内斯托·托恩奎斯特”严格自然保护区内的狼蛛目蜘蛛群落的多样性、丰度、空间分布和物候学。该保护区是凡塔尼娅系统的代表,这是一个长达 180 公里的曲线形山脉带。这个特殊的丘陵生态系统是许多特有物种和丰富的本地动植物的家园。2009 年 10 月至 2010 年 10 月,通过在草原斜坡上手捕和陷阱法每月采集蜘蛛丰度样本。在研究区域记录的物种有:Actinopus sp.1(Actinopodidae);Grammostola vachoni 和 Plesiopelma longisternale(Theraphosidae);Acanthogonatus centralis(Nemesiidae);和 Mecicobothrium thorelli(Mecicobothriidae)。Grammostola vachoni 和 Acanthogonatus centralis 分别是手捕和陷阱法中的优势种。本文分析和讨论了狼蛛目群落的季节性变化、多样性和丰度。凡塔尼娅系统的狼蛛目是一组重要的定居和隐生蜘蛛,它们似乎高度依赖于栖息地类型和环境因素。