Molecular data and distribution dynamics indicate a recent and incomplete separation of manakins species of the genus Antilophia (Aves: Pipridae) in response to Holocene climate change

To determine a hypothetical scenario that accounts for the diversification of the two species of the genus Antilophia, we conducted multilocus molecular comparisons and species distribution modeling for the two taxa, which have distinct male plumage coloration patterns and allopatric geographic dist...

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Bibliographic Details
Published in:Journal of avian biology 2017-08, Vol.48 (8), p.1177-1188
Main Authors: Luna, Leilton Willians, Souza, Thainara Oliveira, Carneiro, Lincoln Silva, de Girão e Silva, Weber Andrade, Schneider, Horacio, Sampaio, Iracilda, Araripe, Juliana, Rêgo, Péricles Sena do
Format: Article
Language:English
Subjects:
Allopatry
Climate
Climate change
Cloud forests
Coloration
Colour
Distribution
Divergence
Dry forests
Dynamics
Forests
Genetic diversity
Genetic variation
Geographical distribution
Geographical isolation
Haplotypes
Holocene
Mitochondria
Modelling
Pleistocene
Plumage
Separation
Species
Species diversity
Taxa
Tropical climate
Tropical forests
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Summary:To determine a hypothetical scenario that accounts for the diversification of the two species of the genus Antilophia, we conducted multilocus molecular comparisons and species distribution modeling for the two taxa, which have distinct male plumage coloration patterns and allopatric geographic distributions, despite the high degree of genetic similarity indicated by recent studies. Three mitochondrial and three nuclear fragments were analyzed. The results indicate clear differences in the genetic diversity of the two species, but with ample sharing of haplotypes in all the markers analyzed, reflecting the absence of reciprocal monophyly, presumably due to the relatively recent and still incomplete separation of the two species. The paleoclimatic distribution models, together with the observed genetic profile indicate a recent process of divergence by geographic isolation in the ancestral populations of the two species. This scenario coincides with the recent climatic events of the South American dry diagonal, which involves the gallery forests of the Cerrado biome and the cloud forest enclaves of the seasonal tropical dry forest of the Caatinga between the late Pleistocene and the mid Holocene.
ISSN:0908-8857
1600-048X
DOI:10.1111/jav.01378