umber 10 wolves apiece. "We
believe the West pack produced three offspring, but none of them survived," he
says. "We don't know why for sure, but it may well have to do with the scarcity
of moose at that end of the island." He says the park's moose population numbers
750 this year, as compared to 700 a year ago, with most of the animals
concentrated in the east and middle portions of the island.
Peterson is encouraged by the fact that dead wolves found by the survey
crew during the past few years have been disease-free and showed no direct signs
of any genetic problem that biologists thought might have caused poor
reproduction in past years. In the past year only one wolf has died on Isle
Royale, and biologists determined that it had been killed in a territorial
dispute by other wolves.
National Park officials are hoping for continued positive growth in the
wolf population that would keep the total number of wolves on Isle Royale in the
high 20s during the next several years.
Wolf research on Isle Royale is funded by the National Park Service,
National Science Foundation, and Earthwatch.
Page: 1 2 Related biology news :1
Contact: Dr. Rolf O. Peterson
Michigan Technological University
. Isle Royale wolves fewer, but thriving2
. Isle Royale wolves doing well3
. Major Wolf Die-Off Recorded On Isle Royale4
. Isle Royale Moose Continue Decline5
. Wolves are rebalancing Yellowstone ecosystem6
. Wolves decline, moose increase7
. Wolves in Yellowstone may aid aspen recovery8
. Managing For Deer, Moose, Elk, Wolves -- And People