Título :	Influência dos fatores naturais e antrópicos no atropelamento de mamíferos na BR-163, Mato Grosso
Autor :	Bernardo, Luís Renato Rezende
Orientador(es)::	Vieira, Emerson Monteiro
Assunto::	Atropelamentos Hábitat Mamíferos silvestres Fogo - Cerrados Sazonalidade
Fecha de publicación :	11-abr-2022
Data de defesa::	10-dic-2021
Citación :	BERNARDO, Luís Renato Rezende. Influência dos fatores naturais e antrópicos no atropelamento de mamíferos na BR-163, Mato Grosso. 2021. 233 f., il. Tese (Doutorado em Ecologia) — Universidade de Brasília, Brasília, 2021.
Abstract:	Several factors influence the roadkill dynamics of wild mammals on roads, but some of them are poorly known. Thus, the objectives of this study were to identify and evaluate the relationship between mammal roadkills on the highway BR-163, in the state of Mato Grosso (central Brazil), with: 1 - landscape characteristics; 2 – occurrence of fire events along the road; 3 - climate variation and traffic intensity. Thirty-six species were recorded, most of them had medium or large size (> 3 Kg) Forest cover was the most important variable of land occupation and was related to the increase of roadkills for most species, indicating the use of these areas as refuges or corridors in fragmented landscapes. Specialist mammals were related to their specific habitats. The group of semi-aquatic species as a whole and Hydrochoerus hydrochaeris were related to water and Sapajus sp. and the group of arboreal species were related to forested areas. Land use analyzes at the 1 km scale were more informative than those at 100 m, indicating that the home range of the species should be considered to define the scale. Most species had a negative relationship with the presence of fires. This relationship may be caused by fire-induced mortality, reduced resource availability or conversion of natural areas for agricultural activity. The group of semi-aquatic species and H. hydrochaeris showed a positive relationship with the presence of fires. These animals might be attracted by the post-fire vegetation regrowth. The increase in the volume of heavy commercial vehicle traffic caused a reduction in the number of roadkills for most species. This may indicate a barrier effect caused by heavy traffic or reduced roadkills due to reduced vehicle speed. On the other hand, the roadkills of the group of arboreal species and Sapajus sp. increased with the volume of passenger vehicles. These animals might be road killed when approaching the road to consume garbage thrown by drivers or fallen grain from trucks, a behavior that was recorded during the study. The roadkill of armadillos was highest in the rainy season whereas for foxes, Coendou prehensilis, and arboreal mammals it was highest in the dry season. The variation in the roadkill of Tamandua tetradactyla and armadillos may be a response to the mean temperature of the environment, due to yours lower body temperatures and metabolic rates.
metadata.dc.description.unidade:	Instituto de Ciências Biológicas (IB)
Descripción :	Tese (doutorado) — Universidade de Brasília, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Ecologia, 2021.
metadata.dc.description.ppg:	Programa de Pós-Graduação em Ecologia
Licença::	A concessão da licença deste item refere-se ao termo de autorização impresso assinado pelo autor com as seguintes condições: Na qualidade de titular dos direitos de autor da publicação, autorizo a Universidade de Brasília e o IBICT a disponibilizar por meio dos sites www.bce.unb.br, www.ibict.br, http://hercules.vtls.com/cgi-bin/ndltd/chameleon?lng=pt&skin=ndltd sem ressarcimento dos direitos autorais, de acordo com a Lei nº 9610/98, o texto integral da obra disponibilizada, conforme permissões assinaladas, para fins de leitura, impressão e/ou download, a título de divulgação da produção científica brasileira, a partir desta data.
Agência financiadora:	Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) e Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq).
Aparece en las colecciones:	Teses, dissertações e produtos pós-doutorado

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