Siberian Nuthatch Sitta arctica is split from Eurasian Nuthatch S. europaea (Clements 2007:529–530)
Summary: Eastern Russia now has its own endemic species of nuthatch, the Siberian Nuthatch. This species may co-occur with local forms of Eurasian Nuthatch and they may even flock together in the non-breeding season.
Details: Just one of several taxa originally described as full species that have long been united in Sitta europaea (e.g., Greenway 1967), S. arctica was not even described to science until 1907. Although it has numerous differences in details of plumage and proportions, these are not visually striking when compared with the vast variation exhibited by the S. europaea complex. However, Sitta arctica was found to be highly distinct in an mtDNA study (Zink et al. 2006), so much so that it was used to root the trees of S. europaea in Hung et al. (2012). It is evidently sympatric with S. europaea, and said to have very different vocalizations (Red’kin and Konavalova 2006). It was thus split by several sources including Dickinson and Christidis (2014) and del Hoyo and Collar (2016), and followed by Gill and Wright (2008, IOC v.1.6), and now WGAC and Clements et al. (2023). A recent multi-locus phylogeny (Päckert et al. 2020) confirms that S. arctica is basal to the large clade comprising most of the Asian Sitta species, and thus species status is unequivocally upheld.
desconocido
Sí
Añadido por donalddavesne el noviembre 3, 2023 03:49 TARDE
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Comprometido por donalddavesne el 03 de noviembre de 2023
Los desacuerdos no intencionados ocurren cuando un grupo padre (B) se adelgaza al cambiar un grupo hijo (E) a otra parte del árbol taxonómico, provocando que las Identificaciones existentes del grupo padre sean interpretados como desacuerdos con las Identificaciones existentes del grupo hijo cambiado.
Identification
La ID 2 del taxón E será un desacuerdo no intencionado con la ID 1 del taxón B después del intercambio de ancestros
Si el adelgazamiento del grupo padre provoca más de 10 desacuerdos no intencionados, deberías dividir el grupo padre después de intercambiar el grupo hijo para substituir las identificaciones existentes del grupo padre (B) con identificaciones con las que no esté en desacuerdo,