Please use this identifier to cite or link to this item:
Title: Comparative Phylogeography of Two Bird Species, Tachyphonus phoenicius (Thraupidae) and Polytmus theresiae (Trochilidae), Specialized in Amazonian White-sand Vegetation
Authors: Matos, Maysa V.
Borges, Sérgio Henrique
D'Horta, Fernando Mendonça
Cornelius, Cintia
Latrubesse, Edgardo Manuel
Cohn-Haft, Mario
Ribas, Camila Cherem
Keywords: Comparative Study
Neotropical Region
Patch Dynamics
Population Size
Population Structure
Range Expansion
Subtropical Region
Amazon River
Atlantic Forest
Polytmus Theresiae
Tachyphonus Phoenicius
Issue Date: 2016
metadata.dc.publisher.journal: Biotropica
metadata.dc.relation.ispartof: Volume 48, Número 1, Pags. 110-120
Abstract: 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. © 2016 The Association for Tropical Biology and Conservation.
metadata.dc.identifier.doi: 10.1111/btp.12292
Appears in Collections:Artigos

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.