IUCN / SSC Cat Specialist Group - Digital Cat Library |
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| Krebs, C.J.; Boonstra, R.; Boutin, S.; Dale, M.; Hannon, S.; Martin, K.; Sinclair, A.R.E.; Smith, J.N.M.; Turkington, R. | |
| What drives the snowshoe hare cycle in Canada's Yukon? | |
| 1992 Book Chapter | |
Snowshoe hares and their predators fluctuate cyclically in abundance every 9-11 years in the southwestern Yukon. Peak populations occured in 1980-1981 and in 1989-1990 around Kluane Lake. During the first cycle (1977-84) we tested food limitation hypotheses by providing three hare populations with supplemental food (rabbit chow). Extra food did not prevent the cyclic decline, and neither the timing nor the rate of the decline from 1981-84 was affected by food addition, in comparsion with controls. |
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