The first structured inventory of harvestmen in the Brazilian Amazon Rain
Forest was carried out at Juruti municipality, Pará State. The sampling
protocol was done in three plots of (1 ha each) non-flooded upland forest, on
the Juruti River plateau, nearly 60 km from the right margin of the Amazon
river, and one plot in a floodplain forest area, at the Amazon river margin. To
ensure assessment of the majority of potential habitats, seven collecting
techniques were used, resulting in 466 individuals from 28 species. Each
upland site provided 16-18 species. Flooded forest habitat was
undersampled, and only five species were recorded. From the seven
collecting methods employed, litter manual sorting resulted in the highest
number of species per sample, and beating tray the highest ratio of
individuals per sample. These two collection techniques, along with nocturnal
ground search, were the most effective sampling techniques for a protocol for
collecting harvestmen in this site.
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