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Grizzly bears, black bears, wolves, coyotes, cougars/ mountain lions,bobcats, wolverines, lynx, foxes, fishers and martens are the suite of carnivores that originally inhabited North America after the Pleistocene extinctions. This site invites research, commentary, point/counterpoint on that suite of native animals (predator and prey) that inhabited The Americas circa 1500-at the initial point of European exploration and subsequent colonization. Landscape ecology, journal accounts of explorers and frontiersmen, genetic evaluations of museum animals, peer reviewed 20th and 21st century research on various aspects of our "Wild America" as well as subjective commentary from expert and layman alike. All of the above being revealed and discussed with the underlying goal of one day seeing our Continent rewilded.....Where big enough swaths of open space exist with connective corridors to other large forest, meadow, mountain, valley, prairie, desert and chaparral wildlands.....Thereby enabling all of our historic fauna, including man, to live in a sustainable and healthy environment. - Blogger Rick

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Thursday, November 12, 2015

Another insightful article(our third this week--lucky us!) from Ecologist Cristina Eisenberg--Today she provides her thoughts on what seems to be the coming Federal Delisting of Grizzly Bears in the Greater Yellowstone.........She provides us with a reiteration of the history of decline and recovery of Griz in this region and then goes on to reveal the fragility of that recovery-------"For any species, recovery hinges on the portion of the population capable of reproducing, called the ecologically effective population"................ "Species with a low reproductive rate, such as the grizzly bear (which doesn't begin to reproduce until the age of 6-8 years, and then only has 1-3 young every 3 years), will have a low ecologically effective population"............. "For example, a population of 100 bears may have only 15 reproducing females".............. "Scientists have identified sustainable mortality for females with cubs of the year of 4 percent"............. "Based on new science, in 2013 USFWS adjusted this to 7.6 percent, although not all agree"...................She admonishes us that "recovery isn't just about numbers".............. "The long-term future of the great bear will be based on the support of people who live, work, and recreate in this species' habitat"............... "To be effective, grizzly bear conservation must happen at the grassroots level"............ "The potential for conflict on ranchlands and leased grazing allotments makes such an approach crucial".............. "In the GYE between 1992 and 2000, 44 percent of bear-human conflicts had to do with livestock depredation"

Learn more about large carnivore conservation by joining Cristina afield on her Earthwatch expedition, Tracking Fire and Wolves through the Canadian Rockies.


Recovery of the

Great Bear?

Posted: Updated: 

 Grizzly Bear in Yellowstone (stock image)

Whitebark Pine
Photo Courtesy American Forests

 Grizzly Bear Mother and Cubs (stock image)

Grizzly Bear

Foraging on

Whitebark Pine

Photo Courtesy

American Forests

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