Species composition and frequency of habitat use by medium and large-sized mammals in the Brazilian Cerrado Biome, State of Tocantins
Título del documento: Species composition and frequency of habitat use by medium and large-sized mammals in the Brazilian Cerrado Biome, State of Tocantins
Revista: Acta scientiarum. Biological sciences
Base de datos: PERIÓDICA
Número de sistema: 000433610
ISSN: 1679-9283
Autors: 1
1
2
2
2
2
Institucions: 1Universidade de Aveiro, Departamento de Biologia, Aveiro. Portugal
2Universidade Federal de Lavras, Departamento de Ciencias Florestais, Lavras, Minas Gerais. Brasil
Any:
Volum: 41
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés The Cerrado biome is the second largest natural vegetation type existing in Brazil after the Amazon, covering 91% of the State of Tocantins, with 30% of the territory changed as a result of the expansion of economic development areas. The substitution of natural vegetation means habitat loss on species, and may put the survival of medium and large-sized mammal species under extinction risk. These species represent significant energy demands and high requirements of area within the habitat. This study aims to assess the species composition and the frequency of use of physiognomic types of vegetation by medium and large-sized mammals. The study was conducted from 2001 to 2011 using a set of complementary and alternative techniques in fragments of seven different physiognomic types of vegetation. Fourth-seven medium and large-sized mammals were registered. This record corresponds to 92% of species already described within the biome, and five additional species to thoseregistered in the data base of the State of Tocantins. Fourteen of these species are at certain degree of threat of extinction. The most used physiognomic types of vegetation in terms of canopy cover were Cerradao, Typical Cerrado, Riparian Forest and Dense Cerrado, and the less used were Gallery Forest, Campo Sujo and Vereda
Disciplines Biología
Paraules clau: Ecología,
Mamíferos,
Composición por especies,
Uso del hábitat,
Fitofisionomía,
Biodiversidad
Keyword: Ecology,
Mammals,
Species composition,
Habitat use,
Phytophysionomy,
Biodiversity
Text complet: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/45684/751375148949