It’s highly likely that global warming has caused polar bears, black bears and grizzly bears to be seen for the first time in the north of the Canadian province of Manitoba. This is what happened.
The discovery was made in a study led by the University of Saskatchewan in this subarctic region, in the Wapusk National Park.
According to Douglas Clark, a scientist at the U of S School of Environment and Sustainability, “these sightings are consistent with the expected ecological responses to the amplified effects of climate change on high-latitude ecosystems.”
The observations made between 2011 and 2017, provide increasingly important evidence of how grizzly bears are expanding and increasing their territory in northern Canada.
Part of these observations, requested by “Parks Canada,” recorded 366 polar bears, 25 black bears and 10 grizzly bears. The novelty is the presence of the grizzlies. Because of their living conditions, grizzlies have to fight more, are braver than their cousins, even smaller than polar bears and are known to have a dominance over the other two species, moving and even, in some cases, eating them .
This new encounter between these three species may be related to climate change where bears expand their territories in search of food.
The question that scientists ask is how these new interactions will affect the behaviors of bears and efforts to preserve them. They emphasize that this meeting “should not be seen as a threat to any bear, but should be understood as an ecological response to environmental change.” In addition, the Wapusk National Park is at a junction of boreal forest, tundra and ocean ecosystems that are being rapidly altered due to climate change.
If you want to learn more about the results of these observations, you can see them in Artic Science.
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