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Title
Occupation Models and Sustainable Hunting at the Tamshiyach-Tahuayo Conservation Area, Peru.
Author(s)
Isasi-Catala, Emiliana; Goldstein, Isaac; Arellano, Cecilia; Bardales, Claudio; Flores, Frank; Maffei, Leonardo; Muñoz, Lucas; Odicio, Marco; Torres, Leon; Villacorta, Lindher
Published
2017
Abstract
The objective of this work was to assess the use of occupancy models as tools to monitor the effectiveness of the sustainable use of some species by surrounding communities. Between September and November of 2016, in “Comunal Tamshiyacu Tahuayo” Regional Conservation Area (ACRCTT), 85 grids of 1km2 and 85 grids of 0.04km2, were established to evaluate the occupancy of large (ungulates) and small hunting species (mainly rodents) respectively, through signals and trails in transects and camera traps stations. Single season-single species occupancy models with nine site covariates (CovS) were adjusted to assess the hunting effect for each species. The occupancy estimated for ungulates was high (? > 0.80), except T. pecari, which does not exceed 0.60. For most of these species, occupation is higher in the sampling units furthest from the populated centers and navigable rivers, with ACRCTT being a major area for the maintenance of populations (Sig (CovS) < 0.05). This indicates that hunting pressure affect the large species evaluated in the ACRCTT, but does not generate a significant impact on their populations. The occupancy estimated for rodents was also high (? > 0.60), and is higher in the sampling units furthest from the populated centers (Sig (CovS) < 0.05). This spatial pattern is important for the conservation of species like Cuniculus paca, with drastic reductions in occupation (0.15) being estimated near some populated centers, which facilitates the identification of priority management areas for ACRCTT. The accuracy of these estimates allows the use of occupancy as an indicator for the development of a monitoring program for the sustainability hunting at the ACRCTT.
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PUB26958