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Decline And Recovery Of A High Arctic Wolf-Prey System, L. David Mech
Decline And Recovery Of A High Arctic Wolf-Prey System, L. David Mech
USGS Northern Prairie Wildlife Research Center
A long-existing system of wolves (Canis lupus), muskoxen (Ovibos moschatus), and arctic hares (Lepus arcticus) in a 2600 km2 area of Canada’s High Arctic (80° N latitude) began collapsing in 1997 because of unusual adverse summer weather but recovered to a level at which all three species were reproducing by 2004. Recovery of wolf presence and reproduction appeared to be more dependent on muskox increase than on hare increase.
Un vieux système biologique composé de loups (Canis lupus), de boeufs musqués (Ovibos moschatus) et de lièvres arctiques (Lepus …