Inbred wolves struggle, moose proliferate at Isle Royale National Park -- ScienceDaily - http://www.sciencedaily.com/release...
May 3, 2014
from
"During their annual Winter Study at Isle Royale National Park, scientists from Michigan Technological University counted nine wolves organized into one breeding pack and a second small group that is a remnant of a formerly breeding pack.
In the Isle Royale Wolf-Moose Study's annual report released today, the researchers say that over the past three years, they have tallied the lowest numbers of wolves ever: nine in 2011-12, eight in 2012-13 and nine in 2013-14. During the same period, predation rates -- the proportion of the moose population killed by wolves -- also dropped to the lowest ever recorded, while the number of moose doubled, to approximately 1,050 moose.
Wolves are the only predators of moose on the remote island national park in northwestern Lake Superior. The moose population has been increasing because wolf predation has been so low."
- Jessie
"In a paper just published in the journal Conservation Genetics, Peterson, Vucetich, Philip Hedrick of Arizona State University, Jennifer Adams of the University of Idaho and Michigan Tech's Leah Vucetich report on their study of the effects of this new genetic input. The Isle Royale study is significant, they write, because "few documented instances of genetic rescue have been observed long enough or in sufficient detail to understand how long one can expect the beneficial effects of genetic rescue to persist.""
- Jessie