Titre:	Late Pleistocene climatic changes promoted demographic expansion and population reconnection of a Neotropical savanna-adapted bird, Neothraupis fasciata (Aves: Thraupidae)
Auteur(s):	Lima-Rezende, Cássia Alves Rocha, Amanda Vaz Couto Júnior, Antônio Felipe Martins, Éder de Souza Vasconcelos, Vinicius Caparroz, Renato
metadata.dc.identifier.orcid:	https://orcid.org/0000-0001-7615-7635
Assunto::	Mudanças climáticas Aves - cerrados Nicho (Ecologia)
Date de publication:	20-mar-2019
Editeur:	PLoS ONE
Référence bibliographique:	LIMA-REZENDE, Cássia Alves et al. Late Pleistocene climatic changes promoted demographic expansion and population reconnection of a Neotropical savanna-adapted bird, Neothraupis fasciata (Aves: Thraupidae). PLoS One, v. 14, n. 3, e0212876, 2019. DOI: https://doi.org/10.1371/journal.pone.0212876. Disponível em: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0212876. Acesso em: 12 jan. 2021.
Abstract:	We performed phylogeographic and genetic structure analyses of Neothraupis fasciata joined with species distribution modelling to evaluate whether: (1) the distribution of genetic variability shows a pattern expected by the isolation-by-distance model; (2) the influence of the Pleistocene climate changes on species distribution; and (3) climate/climatic stability (hypothesis of climatic stability) as a predictor of population genetic diversity. Based on two molecular datasets (ND2 and FIB-5), the isolation-by-distance hypothesis was not supported. The mitochondrial haplotype network indicated the existence of historically isolated populations at the southern range of the species distribution, and recent population expansion was identified by both neutrality tests and extended Bayesian skyline plot analysis. Thus, the climatic changes during the Pleistocene might have promoted the reconnection of the partially isolated southern populations, which may have persisted in the plateaus during the cycles of savanna contractions. Subsequently, this species (re)colonized northern areas of the species present distribution, following the continuous vegetation on the São Francisco and Central plateaus about 60 kyr, and also reached the Amazonian savannas likely via the central corridor. Thus, our results indicated that the intrinsic relationship between the relief heterogeneity (plateaus and depressions) and the climatic fluctuations, mainly in the Pleistocene, promoted population reconnection and demographic expansion of N. fasciata.
Licença::	© 2019 Lima-Rezende et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
DOI:	https://doi.org/ 10.1371/journal.pone.0212876
Collection(s) :	Artigos publicados em periódicos e afins

Tous les documents dans DSpace sont protégés par copyright, avec tous droits réservés.