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Area-relationships in the Neotropical lowlands: an hypothesis based on raw distributions of Passerine birds
Using raw geographic distributions for Neotropical species and subspecies of the perching birds (Order Passeriformes), we present an hypothesis of area- relationships for twelve avian areas ofExpand
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Molecular Studies and Phylogeography of Amazonian Tetrapods and their Relation to Geological and Climatic Models
Explaining the origins and evolution of Amazonian biodiversity continues to be an outstanding question in evolutionary biology. A plethora of mechanisms for promoting diversifi cation has beenExpand
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High Levels of Mitochondrial DNA Differentiation in Two Lineages of Antbirds (Drymophila and Hypocnemis)
We assessed levels of genetic differentiation based on mitochondrial DNA sequences (portions of the cytochrome-b and ND2 genes) at several taxonomic levels in thamnophilid antbirds. Our focus was toExpand
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Parasite Prevalence Corresponds to Host Life History in a Diverse Assemblage of Afrotropical Birds and Haemosporidian Parasites
Avian host life history traits have been hypothesized to predict rates of infection by haemosporidian parasites. Using molecular techniques, we tested this hypothesis for parasites from threeExpand
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Avian hematozoa from west-central Bolivia.
A total of 641 birds representing 135 species of 25 families from Noel Kempff Mercado National Park in west-central Bolivia was examined for hematozoa; only 33 (5.1%) harbored blood parasites.Expand
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Coalescent models reveal the relative roles of ancestral polymorphism, vicariance, and dispersal in shaping phylogeographical structure of an African montane forest robin.
Although many studies have documented the effect of glaciation on the evolutionary history of Northern Hemisphere flora and fauna, this study is the first to investigate how the indirectExpand
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Evolutionary history of Ramphastos toucans: molecular phylogenetics, temporal diversification, and biogeography.
The toucan genus Ramphastos (Piciformes: Ramphastidae) has been a model in the formulation of Neotropical paleobiogeographic hypotheses. Weckstein (2005) reported on the phylogenetic history of thisExpand
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Temporal and spatial diversification of Pteroglossus araçaris (AVES: Ramphastidae) in the neotropics: constant rate of diversification does not support an increase in radiation during the Pleistocene.
We use the small-bodied toucan genus Pteroglossus to test hypotheses about diversification in the lowland Neotropics. We sequenced three mitochondrial genes and one nuclear intron from allExpand
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Abstract The tody-tyrant and flatbill assemblage, sensu Lanyon (1988a), includes 12 genera of tyrant flycatchers known variously as “tody-tyrants” and “flatbills.” Lanyon supported the monophyly ofExpand
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