Pantheraman
Well-Known Member
"A recent spate of wolf killings just outside of Yellowstone National Park has altered fundamental aspects of the canines’ behavior, and threatened the foundations of one of the most storied wildlife research efforts in American history, according to park scientists.
Twice in recent months Yellowstone National Park senior wildlife biologist Doug Smith and his team of researchers have observed highly unusual mating behavior.
Many more wolves have been getting frisky than expected. Ordinarily in Yellowstone, only each pack’s dominant alpha male and female get the opportunity to mate. The custom is reflected in 27 years of hard data: 85% of the time, park packs produce single litters.
But this year — in the wake of at least 25 wolves being shot or trapped just beyond the park’s boundaries — Yellowstone Wolf Project personnel observed three or four females in two different Northern Range packs “tied” and breeding, Smith said. “Usually the most dominant wolf prevents other wolves from breeding,” he said. “You lose that [dominant] wolf and it opens up opportunities for other wolves.”
It appears, in other words, that with their pack hierarchies disrupted by the record-setting killings, some wolves have abandoned their selective mating customs.
“We have multiple females pregnant in at least two packs — Junction and Wapiti — that could be due to the mortality that we’ve experienced,” Smith said. “It’s broken apart the social structure, it’s messed with the hierarchy, and it’s actually produced more pups. Now this is a hypothesis, but this is what I would call an artificial stimulation of wolf reproductive capacity. By going in and killing them, you stimulate reproduction.”
Wolf hunt altered behavior in normally wild packs
Twice in recent months Yellowstone National Park senior wildlife biologist Doug Smith and his team of researchers have observed highly unusual mating behavior.
Many more wolves have been getting frisky than expected. Ordinarily in Yellowstone, only each pack’s dominant alpha male and female get the opportunity to mate. The custom is reflected in 27 years of hard data: 85% of the time, park packs produce single litters.
But this year — in the wake of at least 25 wolves being shot or trapped just beyond the park’s boundaries — Yellowstone Wolf Project personnel observed three or four females in two different Northern Range packs “tied” and breeding, Smith said. “Usually the most dominant wolf prevents other wolves from breeding,” he said. “You lose that [dominant] wolf and it opens up opportunities for other wolves.”
It appears, in other words, that with their pack hierarchies disrupted by the record-setting killings, some wolves have abandoned their selective mating customs.
“We have multiple females pregnant in at least two packs — Junction and Wapiti — that could be due to the mortality that we’ve experienced,” Smith said. “It’s broken apart the social structure, it’s messed with the hierarchy, and it’s actually produced more pups. Now this is a hypothesis, but this is what I would call an artificial stimulation of wolf reproductive capacity. By going in and killing them, you stimulate reproduction.”
Wolf hunt altered behavior in normally wild packs