Taxonomy and biogeography of Stephanoxis Simon, 1897 (Aves: Trochilidae)

  • Vagner Cavarzere Universidade de São Paulo; Museu de Zoologia
  • Luís Fábio Silveira Universidade de São Paulo; Museu de Zoologia
  • Marcelo Ferreira de Vasconcelos Pontifícia Universidade Católica de Minas Gerais; Museu de Ciências Naturais
  • Rolf Grantsau Pontifícia Universidade Católica de Minas Gerais; Museu de Ciências Naturais
  • Fernando Costa Straube Pontifícia Universidade Católica de Minas Gerais; Museu de Ciências Naturais

Abstract

After the description in the 19th century of two hummingbird species currently allocated to the genus Stephanoxis, Peters (1945) merged both taxa into a single species without providing any rationale. Here we re-evaluate the taxonomy and species limits of the representatives of this genus based on an extensive number of specimens. We demonstrate these taxa are better treated as full species under both the Biological and Phylogenetic Species Concepts due to their well-defined range and plumage patterns and reciprocally diagnosability. They have distinct, allopatric distributions segregated by a 160 km gap between the Serra do Mar, to the east, and Serra de Paranapiacaba, to the west, in the state of São Paulo. Stephanoxis species have ranges which are congruent with other montane bird species suggesting shared vicariance events during preterit interglacial periods.

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Published
2014-01-01
How to Cite
Cavarzere, V., Silveira, L., Vasconcelos, M., Grantsau, R., & Straube, F. (2014). Taxonomy and biogeography of Stephanoxis Simon, 1897 (Aves: Trochilidae) . Papéis Avulsos De Zoologia, 54(7), 69-79. https://doi.org/10.1590/0031-1049.2014.54.07
Section
naodefinida

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