| Texto completo | |
| Autor(es): |
Mendonca Dantas, Gisele Pires
;
Reis Sari, Eloisa Helena
;
Cabanne, Gustavo Sebastian
;
Pessoa, Rodrigo Oliveira
;
Marini, Miguel Angelo
;
Miyaki, Cristina Yumi
;
Santos, Fabricio Rodrigues
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF ORNITHOLOGY; v. 156, n. 1, p. 15-pg., 2015-01-01. |
| Resumo | |
The Rufous Gnateater, Conopophaga lineata, is a small insectivorous understory bird which is endemic to and widely distributed in the tropical and subtropical Atlantic forest of South America. Its distribution makes it ideally suited for testing two major hypotheses for the origin of biodiversity, namely, the riverine barrier and the forest refuge hypotheses. In this study, we sequenced mitochondrial (control region) and nuclear markers (intron 5 of the beta-fibrinogen gene) for individuals distributed in the southern Atlantic forest and obtained a strong genetic structure with one clear discontinuity in northern Brazilian state of So Paulo. We consistently detected signals of demographic expansion for both markers, with estimates indicating that expansion started in the Late Pleistocene (250,000 years ago), suggesting that the forest refuge hypothesis potentially explains Rufous Gnateater's diversification. We also found evidence of gene flow between populations from each side of this discontinuity, with a possible secondary contact zone occurring in the states of Minas Gerais, So Paulo, and Rio de Janeiro. (AU) | |
| Processo FAPESP: | 10/52590-8 - Estrutura populacional e rotas migratórias de espécies chaves da costa atlântica da América do Sul |
| Beneficiário: | João Stenghel Morgante |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 13/50297-0 - Dimensions US-BIOTA São Paulo: integrando disciplinas para a predição da biodiversidade da Floresta Atlântica no Brasil |
| Beneficiário: | Cristina Yumi Miyaki |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOTA - Temático |