Tuesday, December 6, 2011

Grizzly Bears Move Into Polar Bear Habitat in Manitoba, Canada

http://www.sciencedaily.com/releases/2010/02/100223121439.htm

In this article, “Grizzly Bears Move Into Polar Bear Habitat in Manitoba, Canada”, it explained how biologists worked along side of the American Museum of Natural History and City College University of New York to find that grizzly bears were roaming into what was known as polar bear territory. Grizzly bears were officially listed as extirpated, to root out and destroy completely, from Manitoba. Grizzly bears were recently photographed in Wapusk National Park, Manitoba, Canada. Research was taken and Robert F. Rockwell stated that the grizzly bears were competition to polar bears living in the area.

As they flew over Wapusk they spotted several grizzlies. There was absolutely no trace of grizzlies living in the area before 1996. However they were spotted on several occasions 1996 and 2008.An additional three grizzlies were spotted in the summer of 2009. The sightings were increasing and Gormezano, another researcher, feared for the polar bears because the grizzly bears would most likely hibernate in polar bear maternity denning habitat. The researchers were afraid that the grizzly bears would come out of hibernation and kill the polar cubs making it hard for the population of polar bears to survive.

The researchers attempted to discover how the grizzly bears came over to the polar bears territory. The polar bears lived on the barren landscape north of the Hudson Day but there was an impassable gab for potentially migrating grizzly bears. The grizzly bears lived in the ranges of the Rockies, the Yukon, and Nunavut. The grizzly bears had a large flexibility in their diets. Gormezano uncovered that “In Canada, both the polar and grizzly bear are federally listed as species of special concern. In Manitoba, the polar bear is provincially listed as threatened while the prairie population of the grizzly bear is listed as extirpated.”

Posted for P. Meade

1 comment:

  1. Perry did a great job by making this review well presented. One good aspect about this review is how she incorporated grizzly sighting information. It gave the reader a good idea about how these grizzlies kind of just came out of nowhere. Another good aspect is how she incorporated the researchers and scientists ideas on this. It gave a more reliable tone because it gives accounts from professionals on this matter. A third good aspect is how she stated that the polar bears are on the endangered list and how grizzlies are on the list of animals that people no longer want in that area. It gives more contexts to this whole article.

    Even this review was presented well; there are some things that could have been added to make it better. For one thing, it would have been interesting to find out why the people no longer want grizzly bears around but don’t care about polar bears. Another thing that could have been added was a statistic on the populations of grizzly bears and polar bears.

    I was very interested to discover this. Bears are very interesting creatures, and should be treated with more respect.

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