Article
Tusklessness and tusk fractures in free-ranging African savanna elephants (Loxodonta africana).
Journal of the South African Veterinary Association - 1 Jun 2007
Steenkamp G, Ferreira S M, Bester M N
Abstract excerpt
The incidence of tusklessness varies between free-ranging African elephant populations. Sex-linked genetic drift predicts 2 outcomes--the condition becomes fixed and sex-specific incidences diverge when populations are small and/or heavily poached. By contrast, for large and intact populations, tusklessness diminishes and there is no variation between sexes. We tested these predictions by comparing sex-specific...
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