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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Species limits and biogeography of the White-browed Tapaculo (Scytalopus superciliaris) complex and the Puna Tapaculo (S. simonsi) (2023)
Auteurs :	Juan I. Areta, Auteur ; Diego L. Monteleone, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (164(1) January, 2023)
Article en page(s) :	13-35
Langues:	Anglais
Mots-clés:	Andes ; Bioacustics ; Rhinocryptidae ; Speciation ; Taxonomy
Résumé :	The Scytalopus superciliaris complex consists of three recognized taxa: the Zimmer´s Tapaculo Scytalopus zimmeri in Bolivia and Argentina, and the Argentina endemic White-browed Tapaculo S. superciliaris with subspecies superciliaris and santabarbarae, while its southernmost population has a distinctive plumage but remains vocally unknown. Scytalopus zimmeri has been considered as an intermediate taxon between Puna Tapaculo S. simonsi and S. superciliaris based on plumage characters and vocalizations; and potential hybrids between S. zimmeri and S. simonsi were reported from two localities in Bolivia. We characterized the geographic variation in plumages and vocalizations of the S. superciliaris complex and S. simonsi, and describe a new pale and large subspecies, S. superciliaris ambatensis from the Ambato and Velasco ranges. All studied forms were allopatric. The three subspecies of S. superciliaris inhabit different sub-Andean mountain ranges. Two allopatric plumage forms of S. simonsi (northern, Peru and Bolivia; and southern, Bolivia) and two of S. zimmeri (northern, Bolivia; and southern, Bolivia and Argentina), occur on the eastern slope of the Andes. We reject the existence of hybridization between the allopatric S. zimmeri and S. simonsi; presumed hybrids pertain to normal southern S. simonsi based on plumage and vocalizations. All S. superciliaris taxa had similar songs and calls over 600 km. Songs and calls of S. superciliaris, southern S. zimmeri and both S. simonsi populations are diagnostic and support their recognition as different species, while northern zimmeri remains vocally unknown. The southern and northern populations of S. simonsi differ vocally, the latter possibly being an undescribed species.
En ligne :	https://doi.org/10.1007/s10336-022-02012-0

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