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Documents disponibles écrits par cet auteur (10)
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Article
Ana S. Barreira, Auteur ; Muir D. Eaton, Auteur ; Elisabet Vilacoba, Auteur ; Pablo L. Tubaro, Auteur ; Cecilia Kopuchian, AuteurOvenbirds represent a clade of exclusively Neotropical birds that are exceptionally diverse, despite their rather dull, melanin-based plumage. In general, sexes are considered monomorphic in size and colour, but several authors have reported fem[...]
Article
Belén Casalía, Auteur ; Elisabet Vilacoba, Auteur ; Pablo D. Lavinia, Auteur ; Pablo L. Tubaro, Auteur ; Ana S. Barreira, AuteurShort wavelength visual sensitivity in birds is determined mostly by the type of photopigment present in the short-wavelength sensitive cone 1 (SWS1) which varies between clades and takes two main forms: the violet sensitive type (VS) and ultrav[...]
Article
Natalia C. García, Auteur ; Ana S. Barreira, Auteur ; Pablo D. Lavinia, Auteur ; Pablo L. Tubaro, AuteurThe increasing availability of molecular phylogenies has highlighted the issue that genotypic and phenotypic patterns of variation are not always congruent, particularly below the species level. This has led to an ongoing discussion on the valid[...]
Article
Martjan Lammertink, Auteur ; Cecilia Kopuchian, Auteur ; Hanja B. Brandl, Auteur ; Pablo L. Tubaro, Auteur ; Hans Winkler, AuteurThe Helmeted Woodpecker Dryocopus galeatus is a threatened species of the Atlantic Forest in southeastern South America. It has traditionally been placed in the genus Dryocopus, but it shows similarities in plumage and structure with woodpeckers[...]
Article
Natalia C. García, Auteur ; Ramiro S. Arrieta, Auteur ; Cecilia Kopuchian, Auteur ; Pablo L. Tubaro, AuteurBehavioural characters that are learned can show temporal variation resulting from changes introduced in new generations during the learning process. The song of the Rufous-collared Sparrow (Zonotrichia capensis) shows significant geographical v[...]
Article
Pilar Benites, Auteur ; Muir D. Eaton, Auteur ; Dario A. Lijtmaer, Auteur ; Stephen C. Lougheed, Auteur ; Pablo L. Tubaro, AuteurFemales of the closely related capuchino seedeaters are difficult to distinguish from one another based on human visual perception of colouration and morphology. We examined plumage colour differences among females of four species, the tawny-bel[...]
Article
Calibrating the molecular clock beyond cytochrome b: assessing the evolutionary rate of COI in birds
Pablo D. Lavinia, Auteur ; Kevin C. R. Kerr, Auteur ; Pablo L. Tubaro, Auteur ; Paul D. N. Hebert, Auteur ; Dario A. Lijtmaer, AuteurEstimating the age of species or their component lineages based on sequence data is crucial for many studies in avian evolutionary biology. Although calibrations of the molecular clock in birds have been performed almost exclusively using cytoch[...]
Article
Belen Bukowski, Auteur ; Pablo D. Lavinia, Auteur ; Natalia Trujillo-Arias, Auteur ; Cecilia Kopuchian, Auteur ; Pablo L. Tubaro, Auteur ; Dario A. Lijtmaer, AuteurThe Andes constitute one of the main factors that have promoted diversification in the Neotropics. However, the role of other highland regions in the southern cone of South America has been barely studied. We analyzed the level of endemism in th[...]
Article
Luciano Calderon, Auteur ; Walter S. Svagelj, Auteur ; Flavio Quintana, Auteur ; Stephen C. Lougheed, Auteur ; Pablo L. Tubaro, AuteurIn long-lived birds with significant paternal care contribution, as the case of seabirds, extra-pair paternity (EPP) is an infrequent phenomenon. Intriguingly, and in contrast to the general pattern exhibited by seabirds, EPP rates appear relati[...]
Article
Pilar Benites, Auteur ; Leonardo Campagna, Auteur ; Pablo L. Tubaro, AuteurAcoustic signals among newly diverged taxa have the potential to convey species identity, information that is key to reducing hybridization. Capuchino seedeaters constitute a remarkable example of recently radiated endemic species from the grass[...]
