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Highly skewed sex ratios in the critically endangered Taita thrush as revealed by CHD genes
Authors:L. Lens  P. Galbusera  T. Brooks  E. Waiyaki  T. Schenck
Affiliation:(1) Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk, Belgium;(2) Department of Ornithology, National Museums of Kenya, PO Box 40658 Nairobi, Kenya;(3) Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996-1610, USA
Abstract:The study of sex-ratio patterns in threatened bird species has yielded crucial information with regard to their conservation and management. In the case of sexually monomorphic species, i.e. species that cannot be sexed by their appearance, DNA-based sexing techniques are increasingly applied. We present data on the sexing of adult Taita thrushes, a critically endangered forest endemic from south-east Kenya. In addition to describing a morphometric trait that can be used to sex individuals directly upon capture, we comment on a remarkable skew in sex ratio that might have important consequences for the long-term survival of the species.
Keywords:Taita thrush  Turdus helleri  sex ratio  CHD-W genes  conservation genetics
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