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Animal Biodiversity and Conservation. Volume 43.1 (2020) Pages: 9-26

Tree reproductive phenology determines the abundance of medium–sized and large mammalian assemblages in the Guyana shield of the Brazilian Amazonia

Mendes Pontes, A. R., Guedes Layme, V. M., Rodrigues de Lucena, L. R., Chivers, D. J.

DOI: https://doi.org/10.32800/abc.2020.43.0009

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Abstract

Assemblages of medium and large–sized mammals were studied in the Guyana shield of the Brazilian Amazonia. Diurnal and nocturnal line–transect samplings were carried out via the line–transect method in five different forest types along a 10–km transect, along which we also recorded habitat variables, such as tree species diversity, reproductive phenology, and residual fruit productivity. Group density was separately calculated for all mammalian species in the five forest types. Stepwise multiple regression analyses were performed to determine which habitat variables best predicted the mammalian species densities in the sampled forests. The sole determinants of mammalian densities in the forest types studied were basal area of each forest type, total number of tree species in each forest type, and tree reproductive phenology.

Keywords

Mammalian assemblages, Group density, Environmental determinants, Forest productivity, Tree reproductive phenology, Amazonia

Cite

Mendes Pontes, A. R., Guedes Layme, V. M., Rodrigues de Lucena, L. R., Chivers, D. J., 2020. Tree reproductive phenology determines the abundance of medium–sized and large mammalian assemblages in the Guyana shield of the Brazilian Amazonia. Animal Biodiversity and Conservation, 43: 9-26, DOI: https://doi.org/10.32800/abc.2020.43.0009

Reception date:

18/06/2018

Acceptation date:

16/07/2019

Publication date:

03/01/2020

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