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dc.contributor.authorRibeiro, Vivian-
dc.contributor.authorWerneck, F. P.-
dc.contributor.authorMachado, Ricardo Bomfim-
dc.description.abstractSeveral lines of evidence suggest that savannas currently distributed disjointedly in the southern and northern portions of South America might have been connected and disconnected many times during the Quaternary climatic fluctuations. Here, we investigated how climate change since the Last Interglacial may have modified the distribution of bird species associated with South American savannas. We evaluated the connections between South America's savannas using 10 broadly distributed species and the impact of climate changes in community composition using 18 species endemic to Cerrado. We fit ecological niche models to each of the 28 bird species to compare the potential distribution patterns for the Last Interglacial (120 kyr BP), the Last Glacial Maximum (21 kyr BP) and the present. Our results corroborated hypotheses of past connections between northern and southern blocks of savannas through three hypothetical corridors that existed along the Andes, Atlantic Coast and through central Amazonia. In addition, our results also suggested the existence of a fourth plausible corridor located along the Madeira River, crossing Amazonia from the southwest to the northeast. Finally, our analysis showed significant changes in the community composition dynamics of endemic Cerrado species. Our results further reinforce the notion that climate change has major impacts on the distribution of savanna species. © 2016 Ecological Society of Australiaen
dc.relation.ispartofVolume 41, Número 7, Pags. 768-777pt_BR
dc.subjectClimate Changeen
dc.subjectCommunity Compositionen
dc.subjectCommunity Dynamicsen
dc.subjectEcological Modelingen
dc.subjectGeographical Distributionen
dc.subjectLast Glacialen
dc.subjectLast Glacial Maximumen
dc.subjectLast Interglacialen
dc.subjectNeotropical Regionen
dc.subjectPopulation Distributionen
dc.subjectAtlantic Coast [south America]en
dc.subjectMadeira Riveren
dc.titleDistribution dynamics of South American savanna birds in response to Quaternary climate changeen
dc.publisher.journalAustral Ecologypt_BR
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