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An avifaunal survey of the vanishing montane Atlantic forest of southern Bahia, Brazil

Published online by Cambridge University Press:  11 May 2010

L. P. Gonzaga ,
J. F. Pacheco ,
C. Bauer  and
G. D. A. Castiglioni
L. P. Gonzaga
Affiliation:
Departamento de Zoologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68033, 21944–970 Rio de Janeiro, RJ, Brazil
J. F. Pacheco
Affiliation:
Departamento de Zoologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68033, 21944–970 Rio de Janeiro, RJ, Brazil
C. Bauer
Affiliation:
Departamento de Zoologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68033, 21944–970 Rio de Janeiro, RJ, Brazil
G. D. A. Castiglioni
Affiliation:
Departamento de Zoologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68033, 21944–970 Rio de Janeiro, RJ, Brazil
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Summary

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Recent ornithological surveys of humid forest remnants in the Serra da Ouricana near Boa Nova, southern Bahia, Brazil, revealed the existence of an as yet unnoticed montane Atlantic forest avifauna. Among the 220 species recorded, 27 represent range extensions of several hundred kilometres, several others were preceded only by single or a few old, disputed records from Bahia, and at least two are undescribed taxa. A portion of this avifauna has been recorded in other mountainous areas of interior Bahia (Chapada Diamantina, plateau of Maracás), where a complex vegetation mosaic that includes patches of humid forest is found.

In addition to the two undescribed passerines, nine other threatened and thirteen near-threatened species have been recorded in the study area. Considered together with the adjoining and also highly endangered “mata-de-cipo”, forest habitats in the Boa Nova area are probably the most neglected habitats in Brazil concerning bird conservation.

Levantamentos ornitológicos recentemente feitos em remanescentes florestais úmidos na Serra da Ouricana perto de Boa Nova, sul da Bahia, Brasil, revelaram a existência nessa região de uma avifauna montícola da mata Atlântica. Entre as 220 espécies registradas, estão 27 que tiveram sua área de distribuição estendida por centenas de quilômetros, muitas outras conhecidas da Bahia apenas através de registros antigos e contestados, além de ao menos duas aves não descritas. Parte dessa avifauna foi também registrada em outras áreas montanhosas do interior da Bahia (Chapada Diamantina, Chapadão Maracás), onde se encontra um complexo mosaico de vegetação que inclui manchas de floresta úmida. Além dos dois pássaros não descritos, outras nove espécies ameaçadas e treze quase-ameaçadas foram registradas na área de estudo. Considerando-se em conjunto essa área com a vizinha “mata-de-cipo”, também muito ameaçada, pode-se dizer que os ambientes florestais na região de Boa Nova são os hábitats mais negligenciados em relação à conservação de aves no Brasil.

Type
Research Article
Information
Bird Conservation International , Volume 5 , Issue 2-3: In memory of Ted Parker , September 1995 , pp. 279 - 290
Copyright
Copyright © Birdlife International 1995

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