Melanopareia bitorquata (d'Orbigny & Lafresnaye, 1837) is a distinct species: An appraisal of morphological variation in the Collared Crescentchest Melanopareia torquata (zu Wied-Neuwied, 1831) (Aves: Melanopareiidae
| Autor: | Leonardo Esteves Lopes, Luiz Pedreira Gonzaga |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Neotropics
Dichromatism biology Ecology Morphological variation Zoology Cerrado Parapatric speciation Subspecies biology.organism_classification Birds Collared crescentchest Plumage parasitic diseases Conservation status Animal Science and Zoology D orbigny Ecology Evolution Behavior and Systematics Taxonomy |
| Zdroj: | LOCUS Repositório Institucional da UFV Universidade Federal de Viçosa (UFV) instacron:UFV |
| Popis: | The Collared Crescentchest Melanopareia torquata is a poorly known and inconspicuous species of open savannas and grasslands in central Brazil, Paraguay and Bolivia. Three subspecies are currently recognized, but their taxonomic limits, ranges and conservation status are far from well-established. This paper analyses individual and geographic variation in this species on the basis of body measurements and plumage coloration of 119 specimens. A clinal pattern of body size variation and considerable mensural overlap precludes a clear-cut separation between the two subspecies restricted to Brazil, and there is evidently sexual dichromatism in some Brazilian populations. However, M. t. bitorquata shows highly distinct plumage features in parapatry with other forms, strongly suggesting it should be treated as a full species |
| Databáze: | OpenAIRE |
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