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Revista mexicana de biodiversidad

versão On-line ISSN 2007-8706versão impressa ISSN 1870-3453

Resumo

FERRETTI, Nelson et al. Mygalomorphae spider community of the Natural Reserve Sierra del Tigre, Tandilia, Buenos Aires, Argentina. Rev. Mex. Biodiv. [online]. 2014, vol.85, n.1, pp.308-314. ISSN 2007-8706.  http://dx.doi.org/10.7550/rmb.36879.

We documented the specific richness, abundance and activity of the Mygalomorph spider community in the Natural Reserve Sierra del Tigre, Buenos Aires, Argentina. This hilly ecosystem is home for many endemic species and rich in native fauna and flora. Spider abundance was sampled monthly from May 2011 - May 2012 by hand capture and pitfall traps. The species recorded in the study area were Actinopus sp. 1 (Actinopodidae), Grammostola vachoni Schiapelli y Gerschman, 1960; Plesiopelma longisternale Schiapelli y Gerschman, 1942 and Catumiri argentinense (Mello-Leitão, 1941) (Theraphosidae). Grammostola vachoni was the dominant species in hand capture and Actinopus sp. 1 in pitfall traps. The seasonal variation, diversity, and abundance of the mygalomorph community are analyzed and discussed here. The Mygalomorphae of the Tandilia system comprises an important group of sedentary and cryptozoic spiders that seem to be dependent on habitat type and environmental factors.

Palavras-chave : spiders; diversity; phenology; ecology; Buenos Aires.

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