The diet of a small group of extralimital giraffe

Parker, D. M. and Bernard, R.T.F. and Colvin, S.A. (2003) The diet of a small group of extralimital giraffe. African Journal of Ecology, 41 (3). pp. 245-253. ISSN 0141-6707

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Official URL: http://dx.doi.org/10.1046/j.1365-2028.2003.00446.x

Abstract

Giraffe are extralimital in the Eastern Cape Province, South Africa where recent local introductions have persisted despite limited research into their impact on the indigenous flora. The diet of 15 giraffe at the Shamwari Game Reserve was recorded by direct observation during summer (March/April) and winter (July/August) 2001, quantifying diet by frequency of occurrence (individual records scored and expressed as a percentage of the total). Preference indices were also calculated. Habitat use was measured by the number of hours giraffe fed in different habitats. The diet comprised of 14 plant species, the most important species being Rhus longispina (47.9%), Acacia karroo (25.7%) and Euclea undulata (17.6%). Importance of R. longispina, A. karroo and Tarchonanthus camphoratus fluctuated seasonally. Rhus longispina was more important in winter with a corresponding decrease in feeding on A. karroo. Tarchonanthus camphoratus was only consumed during summer. Acacia karroo thickets (previously disturbed areas) were utilized most (summer 12 h; winter 9 h), with alternative habitats utilized more often in winter than in summer. We suggest that the seasonal fluctuation in the importance of R. longispina & A. karroo reflects the deciduous nature of A. karroo.

Item Type:Article
Additional Information:The definitive version is available at www.blackwell-synergy.com
Uncontrolled Keywords:diet; extralimital; Giraffa camelopardalis; habitat-use; preference; ungulate; Acacia karroo; Euclea undulata; Rhus longispina; Tarchonanthus camphoratus; South Africa
Subjects:Y Unknown > Subjects to be assigned
Divisions:Faculty > Faculty of Science > Zoology & Entomology
ID Code:780
Deposited By: Mr Daniel Parker
Deposited On:20 Aug 2007
Last Modified:01 Aug 2012 10:22
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