Por favor, use este identificador para citar o enlazar este ítem: https://repositorio.ufjf.br/jspui/handle/ufjf/7968
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Severe population decline of marsh deer, Blastocerus dichotomus Cetartiodactyla.pdf477.94 kBAdobe PDFVista previa
Visualizar/Abrir
Clase: Artigo de Periódico
Título : Severe population decline of marsh deer, Blastocerus dichotomus (Cetartiodactyla: Cervidae), a threatened species, caused by flooding related to a hydroelectric power plant
Autor(es): Andriolo, Artur
Piovezan, Ubiratan
Costa, Mateus J.R. Paranhos da
Torres, Hermógenes A.
Vogliotti, Alexandre
Zerbini, Alexandre N.
Duarte, José M. B.
Resumo: -
Resumen : Balancing power production and environmental conservation can be problematic. The objective of this study was to investigate the abundance of marsh deer in the Paraná River Basin, above the Sergio Motta (Porto Primavera) Dam, before and after the impact of the dam closure. A fixed-wing, flat window aircraft was used to survey study transects. Observations were recorded based on the distance sampling line transect method, assuming that the detection probability decreases with increased distance. The abundance of marsh deer in the survey region prior to flooding was estimated to be 974 individuals (CV = 0.23). The overall abundance dropped from 974 to 444 (CV = 0.26) individuals after flooding, an overall reduction of 54%. This reduction can be attributed to the direct impact of the flooding process, but it was likely exacerbated by indirect effects, such as increased disease, hunting, and reduction in food availability. Prior to flooding, the marsh deer was distributed widely throughout the dam's catchment area; however, the marsh deer habitat was almost completely destroyed by the flooding process. This situation highlights the need to implement management strategies that ensure the survival of the remaining fragmented population.
Palabras clave : Abundance
Anthropogenic impact
Cervids
Distance sampling
Distribution
CNPq: -
Idioma: eng
País: Brasil
Editorial : -
Sigla de la Instituición: -
Clase de Acesso: Acesso Aberto
DOI: http://dx.doi.org/10.1590/S1984-46702013005000015
URI : https://repositorio.ufjf.br/jspui/handle/ufjf/7968
Fecha de publicación : dic-2013
Aparece en las colecciones: Artigos de Periódicos



Los ítems de DSpace están protegidos por licencias Creative Commons, con todos los derechos reservados, a menos que se indique lo contrario.