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Probing Evolutionary Patterns in Neotropical Birds through DNA Barcodes
These findings confirm the efficacy of species delimitation in birds via DNA barcodes, even when tested on a global scale, and demonstrate how large libraries of a standardized gene region provide insight into evolutionary processes.
DNA Barcode Libraries Provide Insight into Continental Patterns of Avian Diversification
The analysis of large-scale DNA barcodes suggests that avian species are older in Argentina than in the Nearctic, supporting the idea that the greater diversity of the Neotropical avifauna is not caused by higher recent speciation rates.
The multiple applications of DNA barcodes in avian evolutionary studies.
These studies showed that DNA barcodes offer high-quality data well beyond their main purpose of serving as a molecular tool for species identification, including species that showed low genetic interspecific divergence and lack of reciprocal monophyly either are the result of recent radiation and (or) hybridize.
Continental-scale analysis reveals deep diversification within the polytypic Red-crowned Ant Tanager (Habia rubica, Cardinalidae).
The findings suggest that the evolutionary history of H. rubica has been shaped by an assortment of diversification drivers at different temporal and spatial scales resulting in deeply divergent lineages that should be treated as different species.
Intraspecific and interspecific vocal variation in three Neotropical cardinalids (Passeriformes: Fringillidae) and its relationship with body mass
The maximum frequency and the emphasised frequency showed the expected negative correlation with body mass, supporting the idea that the aforementioned relationship stands when comparing closely related lineages in Cyanoloxia and Cyanocompsa and highlighting the importance of considering the role of avian morphology when studying the evolution of song.
Viewing geometry affects sexual dichromatism and conspicuousness of noniridescent plumage of Swallow Tanagers (Tersina viridis)
The results show that viewing geometry can alter color perception, even for noniridescent plumage coloration, and the relative position of the light source and the observer should be considered in studies of avian visual communication, particularly for species with plumages similar to that of Swallow Tanagers.
Structural colour in Tersina viridis
espanolEl color del plumaje de las aves se debe tanto a la presencia de pigmentos como a efectos estructurales selectivos en frecuencia producidos por la interaccion de la luz con la microestructura
DNA barcodes provide new evidence of a recent radiation in the genus Sporophila (Aves: Passeriformes)
This study shows how DNA barcoding can rapidly flag species or groups of species worthy of deeper study as well as giving insights into the evolution of the capuchinos.