| Titre : | So similar and yet so different: taxonomic status of Pallid Swift Apus pallidus and Common Swift Apus apus (2017) |
| Titre original: | So similar and yet so different |
| Auteurs : | Irene Pellegrino, Auteur ; Marco Cucco, Auteur ; Johanna A. Harvey, Auteur ; Federica Liberatore, Auteur ; Marco Pavia, Auteur ; Gary Voelker, Auteur ; Giovanni Boano, Auteur |
| Type de document : | Article |
| Dans : | Bird Study (64(3) July 3, 2017) |
| Article en page(s) : | 344-352 |
| Langues: | Anglais |
| Résumé : | Common Swift Apus apus and Pallid Swift Apus Pallidus are morphologically very similar but are genetically distinct and diverged 1.9–2.1 million years ago (mya).Aims: To examine genetic differentiation and to estimate separation time between Common and Pallid Swifts.Methods: Estimation of differences in three different mitochondrial DNA markers (COI, ND2 and control region), and a fourth marker, the cytb, that did not differ between taxa. Fossils were used to calibrate the estimate of separation date between the two taxa.Results: The genetic between-species distances were 0.010, 0.006 and 0.033 for the three markers, respectively. These values were from three to ten times higher than within-species distances. Results show that the separation dates back to 1.9–2.1 mya, at the Plio-Pleistocene transition, when global climate underwent a period of significant cooling and Northern latitudes were probably more favourable to the Common than to the Pallid Swift.Conclusion: Differences in breeding biology, migration, moult and vocalizations between the two species are mirrored by a clear genetic separation. |
| En ligne : | http://www.tandfonline.com/doi/full/10.1080/00063657.2017.1359235 |



