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Why do eared-pheasants of the eastern Qinghai-Tibet plateau show so much morphological variation?

Published online by Cambridge University Press:  02 January 2001

Xin Lu  and
Guang-mei Zheng
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Abstract

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It is known that White Eared-pheasants Crossoptilon crossoptilon drouyni interbreed widely with Tibetan Eared-pheasants C. harmani at the boundary of their ranges. A new hybrid zone has been found recently in eastern Tibet, far away from the boundary of the parental species' ranges. Based on ecological observations of eared-pheasants and the geographical history and pattern of modern glaciers, we have attributed the complex morphological variation of eared-pheasants and the high biodiversity of the eastern Qinghai-Tibet plateau to its varied geography.

Type
Research Article
Information
Bird Conservation International , Volume 10 , Issue 4 , December 2000 , pp. 305 - 309
Copyright
© Copyright 2000 Bird Life International