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Andrade, R.P.; Salm, R.; Fran‡a, I.; Hernandez-Ruz, E.J.
Accessibility do not explain abundance of medium and large-sized mammals in Terra Do Meio, Altamira, Par , Brazil
2019 Acta Zoologica Mexicana (Nueva Serie) (35): 1-10
The aim of this study was to evaluate the effects of accessibility on hunting pressure by considering the mammal abundance and biomass of two protected areas belonging to different conservation categories -indigenous land and Ecological Station- in the Xingu River basin, eastern Amazon. For doing so, we used linear transection methods (total effort 240 km, in four tracks), camera traps (487 days) and complementary records. We also developed an accessibility coefficient based on the distance between navigable rivers and roads, and the centre point of the sampled trails. We used the Simple linear regression test to analyse the effects of this accessibility on the biomass of the sighted species, gathering them in orders. We found 34 species belonging to seven families and six orders. We found no relation between mammal biomass and our accessibility index, which suggests that hunting pressure affects even the most distant studied areas.
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