Please use this identifier to cite or link to this item:
Title: Variação morfológica, vocal e molecular em Hylopezus macularius (Temminck, 1830) (Aves, Grallariidae)
metadata.dc.creator: CARNEIRO, Lincoln Silva
metadata.dc.contributor.advisor1: ALEIXO, Alexandre Luis Padovan
Keywords: Aves
Hylopezus macularius
Zoologia sistemática
Sistemática molecular
Evolução vocal
Pará - Estado
Amazônia brasileira
Issue Date: 2009
Publisher: Universidade Federal do Pará
Museu Paraense Emílio Goeldi
Citation: CARNEIRO, Lincoln Silva. Variação morfológica, vocal e molecular em Hylopezus macularius (Temminck, 1830) (Aves, Grallariidae). 2009. 69 f. Dissertação (Mestrado) - Universidade Federal do Pará, Museu Paraense Emílio Goeldi, Belém, 2009. Programa de Pós-Graduação em Zoologia.
Abstract: A systematic revision of the polytypic Spotted Antpitta (Hylopezus macularius, Grallariidae) based on morphometric, plumage, vocal, and molecular characters is presented. Morphological and vocal analyses were based, respectively, on 45 specimens and 104 recordings. Molecular phylogenies were inferred based on ca. 1.371 bp of the mitochondrial DNA genes 16S, ND2, and cyt b belonging to 26 specimens, including several outgroups. Our results revealed the existence of an undescribed taxon endemic to the Madeira – Xingu interfluve, cryptically similar in morphology to paraensis, but vocally and genetically readily distinguished from the latter and any other taxon grouped under H. macularius. Molecular trees obtained recovered with strong support the reciprocal monophyly among four main lineages of the Spotted Antpitta, three corresponding to already named taxa (dilutus, macularius, and paraensis), and one to the unnamed taxon, which is described herein. We show that those four taxa are also mutually diagnosed by a combination of both vocal and morphological features, and therefore recommend treating them as separate species. Dating of the molecular trees indicated that splits among species of the Spotted Antpitta complex took place between 2.92 and 0.78 mya, with the older splits concentrated in northwestern Amazonia (across the Negro and upper Amazon rivers) and the most recent ones in the southeastern part of the basin (across the Xingu river).
Appears in Collections:Dissertações em Zoologia (Mestrado) - PPGZOOL/ICB

Files in This Item:
File Description SizeFormat 
Dissertacao_VariacaoMorfologicaVocal.pdf1,53 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons