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Post by King Kodiak on Feb 1, 2020 16:18:20 GMT -5
Do you guys think polar bears can be kept in zoos where the place is cold like Norway or Sweden Just give your thoughts Still no. Because even though those countries are cold, they are nowhere near the cold of the freezing Artic where it reaches a low of -60 to -70. Also, polar bears have huge ranges, they need to travel for hundreds of miles to get food. They have evolved over thousands of years to only be in the freezing artic circle.
www.bearconservation.org.uk/polar-bears-in-zoos/
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Post by OldGreenGrolar on Feb 1, 2020 16:20:41 GMT -5
Agreed. Polar bears are sensitive to even the slightest temperature change.
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Post by OldGreenGrolar on Apr 15, 2020 10:57:59 GMT -5
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Post by King Kodiak on May 30, 2020 14:50:21 GMT -5
Dietary habits of polar bears in Foxe Basin, Canada: Possible evidence of a trophic regime shift mediated by a new top predator
Polar bear (Ursus maritimus) subpopulations in several areas with seasonal sea ice regimes have shown declines in body condition, reproductive rates, or abundance as a result of declining sea ice habitat. In the Foxe Basin region of Nunavut, Canada, the size of the polar bear subpopulation has remained largely stable over the past 20 years, despite concurrent declines in sea ice habitat. We used fatty acid analysis to examine polar bear feeding habits in Foxe Basin and thus potentially identify ecological factors contributing to population stability. Adipose tissue samples were collected from 103 polar bears harvested during 2010–2012. Polar bear diet composition varied spatially within the region with ringed seal (Pusa hispida) comprising the primary prey in northern and southern Foxe Basin, whereas polar bears in Hudson Strait consumed equal proportions of ringed seal and harp seal (Pagophilus groenlandicus). Walrus (Odobenus rosmarus) consumption was highest in northern Foxe Basin, a trend driven by the ability of adult male bears to capture large-bodied prey. Importantly, bowhead whale (Balaena mysticetus) contributed to polar bear diets in all areas and all age and sex classes. Bowhead carcasses resulting from killer whale (Orcinus orca) predation and subsistence harvest potentially provide an important supplementary food source for polar bears during the ice-free period. Our results suggest that the increasing abundance of killer whales and bowhead whales in the region could be indirectly contributing to improved polar bear foraging success despite declining sea ice habitat. However, this indirect interaction between top predators may be temporary if continued sea ice declines eventually severely limit on-ice feeding opportunities for polar bears.
www.researchgate.net/publication/305930165_Dietary_habits_of_polar_bears_in_Foxe_Basin_Canada_Possible_evidence_of_a_trophic_regime_shift_mediated_by_a_new_top_predator
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Post by King Kodiak on May 30, 2020 14:57:36 GMT -5
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Post by OldGreenGrolar on May 30, 2020 22:39:07 GMT -5
Honestly, the reason why the bowhead whales are included is only because of the carcass wash on shore. There is no way a polar bear (even the largest male) can kill a bowhead whale. Walruses are preferred over belugas.
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Post by King Kodiak on May 31, 2020 18:59:48 GMT -5
Honestly, the reason why the bowhead whales are included is only because of the carcass wash on shore. There is no way a polar bear (even the largest male) can kill a bowhead whale. Walruses are preferred over belugas. Yeah, thats true.
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Post by OldGreenGrolar on Jun 19, 2020 7:33:38 GMT -5
Polar bears fighting outside their natural environment.
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Post by King Kodiak on Jun 19, 2020 9:04:59 GMT -5
Reply #27, those polar bears are at Yorkshire wildlife park in the United Kingdom. You can see when they grapple that they look weak. Obviously considering how hot it is. I checked and today is 63 degrees fahrenheit in that park, i mean that is just crazy hot for a polar bear.
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Post by OldGreenGrolar on Jun 20, 2020 3:30:39 GMT -5
Contrast in the cold weather.
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Post by Polar on Jun 25, 2020 15:58:50 GMT -5
Those Foxe Basin bears are something else!
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Post by OldGreenGrolar on Aug 31, 2020 11:32:09 GMT -5
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Post by OldGreenGrolar on Aug 31, 2020 11:34:21 GMT -5
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Post by OldGreenGrolar on Sept 12, 2020 10:25:20 GMT -5
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Post by OldGreenGrolar on Sept 13, 2020 7:10:00 GMT -5
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Post by King Kodiak on Sept 14, 2020 1:30:46 GMT -5
Reply #34:
Exactly, and even with all of these morphological disadvantages, polar bears have managed to kill or defeat full grown lions in captivity.
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Post by OldGreenGrolar on Sept 14, 2020 3:52:42 GMT -5
One captive male polar bear nearly killed a full grown male tiger as well and would have won if not for its overheating, I believe.
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Post by OldGreenGrolar on Nov 2, 2020 9:36:26 GMT -5
There are articles which says the polar bears are being reduce in weight and have less offspring due to global warming yet the polar bears in Foxe Basin seem to be doing well. I guess it could depend on the area the polar bears are in.
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Post by King Kodiak on Nov 2, 2020 10:32:34 GMT -5
There are articles which says the polar bears are being reduce in weight and have less offspring due to global warming yet the polar bears in Foxe Basin seem to be doing well. I guess it could depend on the area the polar bears are in. Yeah, but those articles are just "assuming" that based on the shrinking of the polar bear's habitat. There are no new actual weight charts showing polar bears with less weight. So we have to go with the charts that we do have.
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Post by BruteStrength on Jul 21, 2021 21:01:04 GMT -5
Do anybody know if polars bears numbers are still dwindling? I hope not because I want the numbers of the polar bear to flourish as it once did. I just don't want to lose one of the best bears on this planet.
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