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Iheringia. Série Zoologia

versión impresa ISSN 0073-4721


RESENDE, Leonardo P. A.; PINTO-DA-ROCHA, Ricardo  y  BRAGAGNOLO, Cibele. Diversity of harvestmen (Arachnida, Opiliones) in Parque da Onça Parda, southeastern Brazil. Iheringia, Sér. Zool. [online]. 2012, vol.102, n.1, pp.99-105. ISSN 0073-4721.

The environment most diverse in harvestmen species is the Atlantic Forest of São Paulo. However, there remains a lack of studies regarding their communities in certain regions. Among these regions is one south of the Paranapiacaba mountain range in the state of São Paulo, the Parque da Onça Parda (POP). Through nocturnal collections and pitfall traps, the region's harvestmen community has been studied. The observed richness of this site included 27 species, with dominance of three species: Holcobunus nigripalpis Roewer, 1910, Neosadocus maximus (Giltay, 1928) and Munequita sp., accounting for 68.4% of harvestmen abundance. This makes the diversity of POP more similar to the semideciduous Atlantic Forest communities of the interior than to those of the Coastal Atlantic Forest that contains the park. Its geographic location places it within the Southern São Paulo State (SSP) area of endemism, along with the Parque Turístico do Alto Ribeira (PETAR), with which it shares up to 12% similarity regarding harvestmen fauna. Richness and abundance of harvestmen were positively related to temperature and humidity. The period of animal activity (as measured by abundance and richness) varied throughout the night, being highest in the early hours during both studied seasons (summer and winter).

Palabras clave : Daddy longlegs; Alpha diversity; Atlantic Rain Forest.

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