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Phylogenetic relationships among the trogons
--The order Trogoniformes currently is divided into six genera: Apaloderma, Pharomachrus, Euptilotis, Priotelus, Trogon, and Harpactes. For this study, the question of intergeneric relationships wasExpand
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Higher-level phylogeny of trogoniformes.
Phylogenetic relationships between Trogoniformes and several other putative closely related groups of birds, based on complete cytochrome b and nearly complete 12S ribosomal RNA sequences, wereExpand
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In and out of Mesoamerica: temporal divergence of Amazilia hummingbirds pre-dates the orthodox account of the completion of the Isthmus of Panama
Aim We used mitochondrial DNA sequences to reconstruct the phylogenetic relationships of Mesoamerican Amazilia hummingbirds (Trochilidae). The phylogeny was used to identify vicariance scenarios,Expand
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Intergeneric relationships of the new world Jays inferred from cytochrome b gene sequences
The six genera of corvids endemic to the Americas (i.e., Aphelocoma, Calocitta, Cyanocitta, Cyanocorax, Cyanolyca, and Gymnorhinus) form the assemblage that most ornithologists call the New WorldExpand
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Genetic variation and recent population history of the tropical gar Atractosteus tropicus Gill (Pisces: Lepisosteidae)
The tropical gar Atractosteus tropicus belongs to one of the few extant lineages of early bony fishes. The genetic variation detected both within and among 11 natural populations of A. tropicus inExpand
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Revalidation of Pristimantis brevicrus (Anura, Craugastoridae) with taxonomic comments on a widespread Amazonian direct-developing frog
Problems associated with delimiting species are particularly pronounced in taxa with high species-level diversity, as occurs in Pristimantis frogs. Herein, we resurrect Pristimantis brevicrus, nov.Expand
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Phylogeny of the millipede genus Sphaeriodesmus Peters, 1864 (Polydesmida: Sphaeriodesmidae) based on morphological characters
Abstract In order to understand the evolutionary relationships among the species encompassed within the genus Sphaeriodesmus Peters, 1864, a cladistic analysis including 63 species was conducted.Expand
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Models of the Primary and Secondary Structure for the 12S rRNA of Birds: A Guideline for Sequence Alignment
Models of the primary and secondary structure for the 12S ribosomal RNA (rRNA) gene of birds is presented based on a comparison of 100 species. Preliminary higher-order structures were delimitedExpand
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Systematics and bird conservation policies: the importance of species limits
Summary The taxonomic criteria used as bases for endangered species lists can affect conservation policy decisions. We emphasize that the use of different taxonomic units affects the baselines ofExpand
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