Pattern of elevational distribution and richness of non volant mammals in Itatiaia National Park and its surroundings, in Southeastern Brazil



Título del documento: Pattern of elevational distribution and richness of non volant mammals in Itatiaia National Park and its surroundings, in Southeastern Brazil
Revue: Brazilian journal of biology
Base de datos: PERIÓDICA
Número de sistema: 000275846
ISSN: 1519-6984
Autores: 1

2
Instituciones: 1Universidade do Estado do Rio de Janeiro, Instituto de Biologia, Rio de Janeiro. Brasil
2Universidade Estadual de Campinas, Instituto de Biologia, Campinas, Sao Paulo. Brasil
Año:
Periodo: Ago
Volumen: 64
Número: 3b
Paginación: 599-612
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico
Resumen en inglés Itatiaia National Park (PNI) and its surroundings present a unique fauna due to different forest formations with well-defined climatic and vegetation bands. The Itatiaia massif has four vegetation types that follow an altitudinal gradient: lower montane forest, montane forest, upper montane forest, and Campos de Altitude. Hence, this region is ideal for studying geographical variation in biological diversity. The main objectives of this study were to report on nonvolant mammal species known to occur in Itatiaia National Park and its surroundings and to determine if their distributional pattern is related to elevation. A review of the literature and a complete survey of specimens deposited in museums, as well as small-mammal trapping were carried out in order to obtain a complete record of the species from the region. Precise locality data were obtained for all specimens recorded, allowing the inclusion of each collected or observed individual in an altitude and vegetational class. We made a direct ordination gradient of marsupial, primate, and rodent species abundance with the altitude. Sixty-nine mammal species were collected or reported for the Itatiaia massif, belonging to seven orders and 20 families. Of these, 33 species (47.8%) are included in the official list of threatened or believed-to-be threatened species in Rio de Janeiro State. The orders Rodentia, Carnivora, and Didelphimorphia had the highest species richness, with 25, 14, and 13 species respectively. When species were grouped according to the vegetation, 16 species
Disciplinas: Biología
Palabras clave: Ecología,
Mamíferos,
Bosque Atlántico,
Biodiversidad,
Parques nacionales,
Gradiente altitudinal,
Inventarios,
Mammalia,
Brasil
Keyword: Biology,
Ecology,
Mammals,
Mammalia,
Altitudinal gradient,
Inventories,
National parks,
Atlantic forest,
Biodiversity,
Brazil
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