Energy cost and return for hunting in African wild dogs and Cheetahs

Hubel, T Y and Myatt, J P and Jordan, N R and Dewhirst, O P and McNutt, J W and Wilson, A M (2016) Energy cost and return for hunting in African wild dogs and Cheetahs. Nature Communications, 7.

[img]
Preview
Text
10106.pdf - Published Version
Available under License Creative Commons Attribution.

Download (1MB) | Preview

Abstract

African wild dogs (Lycaon pictus) are reported to hunt with energetically costly long chase distances. We used high-resolution GPS and inertial technology to record 1,119 high-speed chases of all members of a pack of six adult African wild dogs in northern Botswana. Dogs performed multiple short, high-speed, mostly unsuccessful chases to capture prey, while cheetahs (Acinonyx jubatus) undertook even shorter, higher-speed hunts. We used an energy balance model to show that the energy return from group hunting and feeding substantially outweighs the cost of multiple short chases, which indicates that African wild dogs are more energetically robust than previously believed. Comparison with cheetah illustrates the trade-off between sheer athleticism and high individual kill rate characteristic of cheetahs, and the energetic robustness of frequent opportunistic group hunting and feeding by African wild dogs.