Physical size,condition, and demography of chamois (Rupicapra rupicapra L.) in the Avoca River region,Canterbury, New Zealand |
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Authors: | R.J. Henderson C.M.H. Clarke |
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Affiliation: | Protection Forestry Division , Forest Reserch Institute , P.O. Box 31-011, Christchurch , New Zealand |
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Abstract: | Abstract The physical and demographic characteristics of chamois in the Avoca region are evaluated from 306 animals shot and autopsied between 1975 and 1978. These data are compared with published and unpublished information for chamois populations in Westland and Canterbury. Avoca chamois were large-framed, but weighed less than Westland chamois. The weight difference suggests better habitat condition and food resources for Westland animals, but the large skeletal size of Avoca chamois is unexplained. High rates of juvenile mortality were caused by acute bacterial-pneumonia infections (Pasteurella). These deaths and other losses by natural causes were offset by the good breeding success of adult females so that stable population numbers were maintained. |
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Keywords: | Rupicapra rupicapra chamois physical size body length jaw length horn length carcass weight kidney fat fecundity mortality bacterial disease (Pasteurella) parasites Avoca River |
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