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1 February 2007 SHORT-DURATION DAYTIME MOVEMENTS OF A COW HERD OF AFRICAN ELEPHANTS
Xiaohua Dai, Graeme Shannon, Rob Slotow, Bruce Page, Kevin J. Duffy
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Abstract

We examined daytime movements of a herd of African elephants (Loxodonta africana) at 10-min, 15-min, and 20-min intervals in Pongola Game Reserve, South Africa. This group tended to proceed in a consistent direction during consecutive movements, especially during long moves. Serial movement lengths and serial movement angles were autocorrelated at 10-min and 15-min intervals but not at 20-min intervals, indicating that 20-min intervals may be a suitable temporal scale to avoid oversampling. Herd movements followed a Lévy-modulated correlated random walk. In addition, looping movements were detected. Spatial scale of the loops averaged about 1 km. Movement strategies that include both Lévy walks and correlated random walks are thought to optimize foraging.

Xiaohua Dai, Graeme Shannon, Rob Slotow, Bruce Page, and Kevin J. Duffy "SHORT-DURATION DAYTIME MOVEMENTS OF A COW HERD OF AFRICAN ELEPHANTS," Journal of Mammalogy 88(1), 151-157, (1 February 2007). https://doi.org/10.1644/06-MAMM-A-035R1.1
Accepted: 1 July 2006; Published: 1 February 2007
KEYWORDS
animal movement
elephant
Lévy walk
looping
Loxodonta africana
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