Sister species, different histories: comparative phylogeography of two bird species associated with Amazonian open vegetation

Autor(es)

Ritter, Camila D. ^{[1, 2]} ; Coelho, Lais A. ^[3] ; Capurucho, Joao M. G. ^[4] ; Borges, Sergio H. ^[5] ; Cornelius, Cintia ^[5] ; Ribas, Camila C. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Duisburg Essen, Dept Eukaryot Microbiol, Univ Str 5, S05 R04 H83, D-45141 Essen - Germany

^[2] Inst Nacl de Pesquisas da Amazonia, Coordenacao Biodiversidade & Colecoes Zool, Av Andre Araujo 2936, BR-69060001 Manaus, Amazonas - Brazil

^[3] Columbia Univ, Dept Ecol Evolut & Environm Biol, MC-5557, 1200 Amsterdam Ave, New York, NY 10027 - USA

^[4] Univ Illinois, Dept Biol Sci, 845 W Taylor St, Chicago, IL 60607 - USA

^[5] Univ Fed Amazonas, Av Rodrigo Otavio Jordao Ramos 3000, Bloco E, BR-69077000 Manaus, Amazonas - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Biological Journal of the Linnean Society; v. 132, n. 1, p. 161-173, JAN 2021.
• Citações Web of Science: 1

Resumo

Although the expansion of open vegetation within Amazonia was the basis for the Forest Refugia hypothesis, studies of Amazonian biota diversification have focussed mostly on forest taxa. Here we compare the phylogeographic patterns and population history of two sister species associated with Amazonian open-vegetation patches, Elaenia cristata and Elaenia ruficeps (Aves: Tyrannidae). We sampled individuals across Amazonia for both species, and in the central Brazilian savannas (Cerrado) for E. cristata. We sequenced one mitochondrial (ND2) and two nuclear (BFib7 and ACO) markers. We tested for population structure, estimated migration rates and elucidated the historical demography of each species. The Amazon River is the strongest barrier for E. ruficeps and the Branco River is a secondary barrier. For the more broadly distributed E. cristata, there was no discernible population structure. Both species attained their current genetic diversity recently and E. cristata has undergone demographic expansion since the Last Glacial Maximum, The results suggest distinct effects of recent landscape change on population history for the two species. E. ruficeps, which only occurs in Amazonian white sand habitats, has been more isolated in open-vegetation patches than E. cristata, which occupies Amazonian savannas, and extends into the Central Brazilian Cerrado. (AU)

• Processo FAPESP: 09/53365-0 - Áreas de vegetação aberta e ciclos climáticos na Amazônia Central: padrões de genética da paisagem como indicadores do fluxo gênico atual em uma paisagem naturalmente fragmentada
• Beneficiário: Jean Paul Walter Metzger
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/50260-6 - Estruturação e evolução da biota amazônica e seu ambiente: uma abordagem integrativa
• Beneficiário: Lúcia Garcez Lohmann
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático