Taxonomy and molecular systematics of the Yellow-green Grosbeak Caryothraustes canadensis (Passeriformes: Cardinalidae)

Autor(es)

Tonetti, Vinicius Rodrigues ^[1] ; Bocalini, Fernanda ^[2] ; Silveira, Luis Fabio ^[2] ; Del-Rio, Glaucia ^[3]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Dept Ecol, Ave 24A, 1515, BR-13506900 Rio Claro, SP - Brazil

^[2] Univ Sao Paulo, Museu Zool, Ave Nazare 481, BR-04263000 Sao Paulo, SP - Brazil

^[3] Louisiana State Univ, Museum Nat Sci, 119 Foster Hall, Baton Rouge, LA 70803 - USA

• Tipo de documento: Artigo Científico
• Fonte: REVISTA BRASILEIRA DE ORNITOLOGIA; v. 25, n. 3, p. 176-189, SEP 2017.
• Citações Web of Science: 0

Resumo

The Yellow-green Grosbeak Caryothraustes canadensis is a South American passerine occurring in Amazon and Atlantic Forests. Currently, it comprises four subspecies: Caryothraustes canadensis canadensis, Caryothraustes canadensis brasiliensis, Caryothraustes canadensis frontalis and Caryothraustes canadensis simulans. No study has ever revisited its taxonomy, hindering a complete understanding of the available diversity in Caryothraustes canadensis complex. We examined color and morphometric variation in 259 scientific specimens and sequenced the mitochondrial gene ND2 of 29 tissue samples. We also quantitatively and qualitatively analyzed 52 spectrograms of vocal recordings. Molecular analyzes demonstrated the existence of two divergent lineages in C. canadensis complex, one from Amazonia and the other in the Atlantic Forest, which can also be distinguished by morphometric and plumage characters. Here we propose that the C. canadensis complex is composed of two full species: C. canadensis and C. brasiliensis. Caryothraustes canadensis frontalis shows no reciprocal monophyly in the phylogenetic analyzes, despite having weak plumage diagnostic characters; therefore, we suggest it should be considered a synonym of C. brasilensis. (AU)

• Processo FAPESP: 10/19876-5 - Revisão taxonômica do complexo Caryothraustes canadensis (Passeriformes: Cardinalidae)
• Beneficiário: Vinicius Rodrigues Tonetti
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica