|
The chestnut-tailed starling or grey-headed myna (''Sturnia malabarica''〔〔 〕) is a member of the starling family of perching birds. It is a resident or partially migratory species found in wooded habitats in India and Southeast Asia. The species name is after the distribution of a former subspecies in the Malabar region. This resident population has a white head and is often treated as a full species, the Malabar starling (''Sturnia blythii''). ==Taxonomy and distribution== The lack of monophyly in the earlier starling genera has led to this species being placed variously under genus ''Sturnia'', ''Sturnus'' and ''Temenuchus'' in the past (Zuccon ''et al.'', 2006) and studies have suggested the reuse of an old name ''Temenuchus'' for members of this clade.〔 Later studies have suggested placement in the genus ''Sturnia''.〔 There are two subspecies of the chestnut-tailed starling: *''S. m. malabarica'': North-eastern India, Nepal, Bhutan, Bangladesh and north-western Burma *''S. malabarica nemoricola'': Southern China (incl. Taiwan), Burma, Thailand, Laos, Vietnam and Cambodia Both the nominate subspecies and ''nemoricola'' are known to perform some poorly understood movements (e.g. ''S. m. malabarica'' has been recorded from Pakistan and in central and southern India). The taxon ''blythii'' is now usually (e.g. Rasmussen & Anderton, 2005) considered a valid species, the Malabar white-headed starling or white-headed myna (''Sturnia blythii''), instead of a subspecies of ''Sturnia malabarica''. As ''S. m. malabarica'' only visits the range of ''blythii'' during the non-breeding period (winter), the two are not known to interbreed. However a molecular study found the genetic divergence between ''S. malabarica blythii'' not significantly greater (between 0.2% and 0.8%) than between the sisters ''S. malabarica malabarica'' of northern India and ''S. malabarica nemoricola'' of Burma and Vietnam.〔Zuccon, D., Pasquet, E. & Ericson, P. G. P. (2008). Phylogenetic relationships among Palearctic–Oriental starlings and mynas (genera Sturnus and Acridotheres : Sturnidae). Zoologica Scripta, 37:469–481 (PDF )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Chestnut-tailed starling」の詳細全文を読む スポンサード リンク
|