Data/hora: 01/06/2024 01:33:00

Provedor de dados: | 103
País: | Brazil
Título: | Altitudinal distribution of birds in a mountainous region in southeastern Brazil
Autores: | Mallet-Rodrigues,Francisco; Parrini,Ricardo; Pimentel,Leonardo M. S.; Bessa,Rafael.
Data: | 2010-08-01
Ano: | 2010
Palavras-chave: | Atlantic Forest; Avifauna; Birds; Elevational distribution.
Resumo: | We studied the altitudinal distribution of 426 bird species in the Serra dos Órgãos, a mountainous region in southeastern Brazil. Thirty-four localities were visited between 1991 and 2009. Our study revealed a decline in bird species richness with elevation, although a smaller number of species was recorded at lower altitudes (below 300 m) possibly due to local extinctions caused by the intense human occupation of the region. A less diverse avifauna was found above 2,000 m, with only one species (Caprimulgus longirostris) recorded exclusively in this altitudinal range. Most endemic species were found between 300 and 1,200 m, but the endemism was more significant at higher altitudes. Nearly half of the birds found above 1,400 m were endemic species. Most of the threatened species from the state of Rio de Janeiro recorded in our study were found below 1,200 m, but no significant difference was found between the proportions of threatened species among different altitudinal ranges. Species of seventeen genera have exhibited some replacement (sometimes with partial overlap) along altitudinal gradients.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000400003
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S1984-46702010000400003
Formato: | text/html
Fonte: | Zoologia (Curitiba)  v.27 n.4 2010
Fonte: | info:eu-repo/semantics/openAccess