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Title: Spatial distribution and habitat of the Anavilhanas Archipelago bird community in the Brazilian Amazon
Authors: Sobral Cintra, R. J. de
Sanaiotti, Tânia Margarete
Cohn-Haft, Mario
Keywords: Arching
Community Composition
Spatial Distribution
Species Richness
Anavilhanas Archipelago
Rio Negro [south America]
South America
Cephalopterus Ornatus
Mitu Tomentosa
Myrmoborus Lugubris
Myrmotherula Klagesi
Pipra Filicauda
Spizastur Melanoleucus
Thamnophilus Nigrocinereus
Xiphorhynchus Kienerii
Issue Date: 2007
metadata.dc.publisher.journal: Biodiversity and Conservation
metadata.dc.relation.ispartof: Volume 16, Número 2, Pags. 313-336
Abstract: This study is the first to present a quantitative survey of bird species occurring in the archipelago of Anavilhanas, located in the Rio Negro in the Brazilian Amazon and is part of the Anavilhanas Ecological Station. We asked whether bird community composition is similar among the islands, and between islands and areas dominated by the surrounding upland terra firme forest on the left (east) margin of the Rio Negro. The surveys were conducted in November and December of 1988, using two complementary methods with mist nets and boat transects. A total of 232 bird species was found for Anavilhanas including a survey done in 1998. The families Tyrannidae and Thamnophilidae showed the highest number of species (16.4% and 9.0% of the total respectively). Some species not well known or having limited distributions are relatively frequently encountered in the archipelago, such as Spizastur melanoleucus, Mitu tomentosa, Phaethornis rupurumii, Xiphorhynchus kienerii, Thamnophilus nigrocinereus, Myrmotherula klagesi, Myrmoborus lugubris, Pipra filicauda, and Cephalopterus ornatus. Hybrid Multidimensional Scaling (HMDS) ordination analysis indicated that the bird community composition is similar among islands. However, the bird community composition on the islands was significantly different from that in sites of terra firme forest at Rio Negro margins. Anavilhanas is a unique ecological system in the Amazon and has it own avifauna. © 2007 Springer.
metadata.dc.identifier.doi: 10.1007/s10531-005-0606-x
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