The State’s long running Upper Yukon Tanana wolf control effort is aimed at increasing Forty Mile caribou numbers for hunters by reducing the number of wolves on the caribou herd’s calving grounds, but Alaska Department of Fish and Game regional supervisor Darren Bruning said recent year’s field research indicates wolves are not the limiting factor.”Potential signs of nutritional limitations were identified, including increased caribou birth rates and reduced calf weights,” Bruning said.

Source: Interior wolf control program to end | Alaska Public Media