Taxonomy of the Pyrrhura perlata-coerulescens complex (Psittaciformes: Psittacidae) with description of a hybrid zone

Abstract

The Pyrrhura lepida species complex currently consists of four taxa: P. l. lepida, P. l. coerulescens, P. l. anerythra, and P. perlata. It occurs south of the Amazon River, and is distinguished within the genus by a dark red upper tail and black under tail, as well as by having wider rectrices. The aim of this paper was to describe the morphological variation present in these taxa, and to revise their taxonomy and geographic distribution. Morphometric data revealed the absence of sexual dimorphism and did not allow the diagnosis of any taxon. Furthermore, morphological analysis, according to patterns of plumage of 174 specimens, resulted in the recognition of only three valid taxa that should be treated as full species: P. perlata, P. anerythra and P. coerulescens. A small hybrid zone between the latter two species was detected west of the mouth of the Tocantins River, and its establishment seems to be related to an already known geological shift in the course of the Tocantins River.

Comparative Phylogeography of Birds Across the Tocantins–Araguaia Interfluve Reveals a New Biogeographic Suture in the Amazon Far East

“…The hybridization between P. anerythra and P. coerulescens had been initially suggested for the lower Tocantins River (Somenzari and Silveira, 2015) and later confirmed within the TAI by morphological comparisons among three specimens collected in the region (Brito et al, 2016). The three specimens collected in the TAI by Brito et al (2016) were sampled in the molecular analyses (Supplementary Table 2) and had their hybridization also corroborated by genetic characters (Supplementary Figure 5).…”

Ficha de Amazona vinacea

“…Não A maior parte da população habita floresta ombrófila mista (Straube et al, 2004;Urben-Filho et al, 2008), demonstrando certa dependência em relação à Araucária e Podocarpus sp. (Somenzari, 2009). Entretanto, também habita outras fisionomias florestais da Mata Atlântica e embora exiba preferência por florestas com melhor qualidade ambiental quando comparada, por exemplo, ao Amazona pretrei , pode ser encontrada em matas secundárias, porém nunca em cultivos agrícolas, como lavouras de milho (N. P. Prestes & J.…”

“…Nas poucas áreas com subpopulações mais numerosas no Brasil, é o papagaio mais comercializado e frequentemente visto nas habitações das comunidades locais. Assim, a captura de filhotes caracteriza-se como uma ameaça relevante à espécie (Ribon et al, 2003;Straube et al, 2004;Somenzari, 2009). Além disso, estão sob forte pressão de caça para consumo como alimento (Urben-Filho et al, 2008), caça esportiva realizada por moradores locais…”