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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Comparative Phylogeography of Two Bird Species, Tachyphonus phoenicius (Thraupidae) and Polytmus theresiae (Trochilidae), Specialized in Amazonian White-sand Vegetation

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Autor(es):
Matos, Maysa V. [1] ; Borges, Sergio H. [2] ; d'Horta, Fernando M. [1] ; Cornelius, Cintia [3] ; Latrubesse, Edgardo [4] ; Cohn-Haft, Mario [5] ; Ribas, Camila C. [5]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Inst Nacl de Pesquisas da Amazonia, Programa Posgrad Genet Conservacao & Biol Evolut, Av Andre Araujo 2936, BR-69060001 Manaus, AM - Brazil
[2] Fundacao Vitoria Amazon, Rua Estrela Alva 146 Aleixo, BR-69060093 Manaus, AM - Brazil
[3] Univ Fed Amazonas, Av Rodrigo Otavio Jordao Ramos 3000, BR-69077000 Manaus, AM - Brazil
[4] Univ Texas Austin, Dept Geog & Environm, 305E 23rd St C3100, CLA 3-418, Austin, TX 78712 - USA
[5] Inst Nacl de Pesquisas da Amazonia, Coordenacao Biodiversidade & Colecoes Zool, Av Andre Araujo 2936, BR-69060001 Manaus, AM - Brazil
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: Biotropica; v. 48, n. 1, SI, p. 110-120, JAN 2016.
Citações Web of Science: 13
Resumo

White-sand vegetation (WSV) harbors a unique avifauna within Amazonia, including species with patchy distributions. The history of these species' populations is likely related to variation in the availability and connectivity among WSV patches though time. By investigating the phylogeographic history of WSV bird species, we aim to better understand the dynamic evolution of forested and open habitats in Amazonia. Here, we perform a phylogeographic analysis of two WSV specialist bird species, a tanager, Tachyphonus phoenicius, and a hummingbird, Polytmus theresiae. We obtained and analyzed sequences of one mitochondrial and one nuclear gene region from 152 individuals. Results indicate that the two species have different histories. Tachyphonus phoenicius split from its Atlantic Forest/Cerrado sister clade at about 11 Ma and includes two divergent lineages, north and south of the Amazon River. Polytmus theresiae split from its Tepuian sister group at about 2.5 Ma and shows no genetic structure within Amazonia. Both lineages of T. phoenicius and P. theresiae show signs of recent population expansion. Although the two WSV species originated at different moments, and show distinct patterns of population structure, both seem to have expanded their population sizes recently, indicating that availability of white-sand habitats may have been increasing historically and the connectivity among different white-sand patches may have been higher in the recent past. (AU)

Processo FAPESP: 12/50260-6 - Estruturação e evolução da biota amazônica e seu ambiente: uma abordagem integrativa
Beneficiário:Lúcia Garcez Lohmann
Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Temático