Biodiversidade Tropical (extinto)

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http://repositorio.ufes.br/handle/10/17602
Programa de Pós-Graduação em Biodiversidade Tropical

Centro: CEUNES
Telefone: (27) 3312 1701
URL do programa: https://posgraduacao.saomateus.ufes.br/ppgbtextinto

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Navegando Biodiversidade Tropical (extinto) por Assunto "Animais em extinção"

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    Distribuição Geográfica Histórica e Recente de Queixadas (Tayassu pecari) e Catetos (Pecari tajacu) na Mata Atlântica Brasileira
    (Universidade Federal do Espírito Santo, 2017-08-08) Cruz, Fabiana de Mendonça; Moreira, Danielle de Oliveira; Mendes, Sérgio Lucena; Kierulff, Maria Cecilia Martins; Mendes, Poliana
    White-lipped peccary (Tayassu pecari Link, 1975) and collared peccary (Pecari tajacu Linnaeus, 1758) are two species of native peccaries with natural occurrence in Brazil. Several areas where there species are distributed have been severely altered by deforestation, agricultural development and urbanization, as is the case of the Atlantic Forest (AF). To determine the sites of extinction of peccaries in this biome, it is necessary to know the differences that make up their historical distribution, it is known that different regions are susceptible to different intensities and types of impacts, which can influence the way the species responding spatially. The purpose of this study was (1) describe the historical occurrence, (2) determine the current occupation pattern of white-lipped and collared peccary, and (3) estimate the local extinction probability of species throughout the biome, analyzing an influence of the following variables: protected areas, forest fragments, human population density, boar presence (Sus scrofa) and time between the last historical record and the current record. Historical and recent records, and absence of records of peccaries were raised and integrated in models of occupancy, which indicated the most likely areas of occupancy and extinction in the AF. Altogether, 469 of collared peccary records were used and resulted in an estimated extinction probability of 4% in the AF, positively influenced by the human population density and negative by the protected areas. For white-lipped peccary, 448 records were used and resulting in an estimated extinction probability of 46% in the AF, positively influenced by the time elapsed in the historical record and the current and negatively for the size of the protected areas. It is concluded that the white-lipped peccary are considered more threatened than the collared peccary and that protected areas are very important for maintenance of the populations of the species. The white-lipped peccary extinction in the AF can cause disturbing consequences along the food chain, given its role as ecological architect and ecosystem engineer.