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Post by Gorilla king on Dec 10, 2021 6:28:12 GMT -5
Reply #18
I think this phrase might be a little exaggerated. Because we only have 2/3 accounts at most of polar bears killing adult male walruses, if the huge walrus is no match, it would be a common occurrence.
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Post by Montezuma on Dec 10, 2021 7:39:42 GMT -5
Reply #18
I think this phrase might be a little exaggerated. Because we only have 2/3 accounts at most of polar bears killing adult male walruses, if the huge walrus is no match, it would be a common occurrence. I think that if it happens so its very very very rare. Mostly polar will hunt seal or walrus pups. |
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Post by Montezuma on Jan 3, 2022 5:36:33 GMT -5
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Post by Montezuma on Jan 3, 2022 5:39:00 GMT -5
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Post by oldindigosilverback on Jan 3, 2022 5:39:48 GMT -5
/\ One of my favourite picture.
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Post by oldindigosilverback on Jun 4, 2022 8:20:25 GMT -5
Some Foxe Basin males are known to successfully hunt walrus, which may explain in part their extraordinarily good condition. While it is doubtful if the killing of walrus is routine amongst males, many bears may feed off the carcasses taken by males that hunt successfully — including subadults, females with cubs and cubs on their own for the first time.
polarbearscience.com/2014/02/12/foxe-basin-polar-bear-status-another-stable-population/
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Post by Gorilla king on Nov 10, 2022 10:05:01 GMT -5
Factors Causing Pacific Walrus Mortality on the Coastal Haulouts of Wrangel Island
In 1989-96, studies of causes of the Pacific walrus natural mortality were conducted on the coastal haulouts of Wrangel Island (Chukchi Sea). A total of 358 walrus died during that period. Death of the fourteen animals was directly observed and recorded, causes of death of the rest of the animals were determined through examining their carcasses. Death of the 85% of walruses resulted from trauma caused by stampedes. 12% of the walruses were killed by polar bears. Predatory and exploratory behavior of polar bears was the main cause of stampedes. Anthropogenic impact is not as important in nature reserve. We present photographs illustrating interactions between walrus and polar bears. Currently, Wrangel Island appears to be the only place, where polar bear predation is the main cause of walrus mortality. Issues discussed in this article include evolution of predator-prey relations between polar bears and walruses, possible causes of walrus mortality on coastal haulouts in other polar regions and their importance to different populations. Long-term intensive observations on other haulouts are discussed in order to improve understanding of the nature of mortality causes and to achieve more efficient protection of walrus.
www.researchgate.net/publication/316428002_Factors_Causing_Pacific_Walrus_Mortality_on_the_Coastal_Haulouts_of_Wrangel_Island
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Post by oldindigosilverback on Nov 11, 2022 3:28:19 GMT -5
/\ Walruses have an inherent fear of polar bears in general. I am not denying that walruses are formidable but being able to cause a stampede is interesting. Although it is mainly the females and pups that get attacked.
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Post by oldindigosilverback on Dec 31, 2022 9:37:25 GMT -5
The polar bear does not look like a full grown male which would at least attempt predation on the walrus.
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Jiren
Black bear
“Water can flow, or it can crash”.
Posts: 307
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Post by Jiren on Jan 18, 2023 15:22:03 GMT -5
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Post by oldindigosilverback on Jan 18, 2023 15:41:53 GMT -5
/\ That article shows that male polar bears are capable of killing bull walruses even if they do not usually don’t do so.
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Jiren
Black bear
“Water can flow, or it can crash”.
Posts: 307
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Post by Jiren on Feb 4, 2023 12:16:54 GMT -5
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Post by oldindigosilverback on Feb 4, 2023 15:05:40 GMT -5
/\ Confirms my opinion. I believe polar bears hunt bull walruses during the time they come out of breathing holes on the ice pack. When on land, they go for the females and pups.
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Post by Gorilla king on Jan 26, 2024 12:00:06 GMT -5
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Post by oldindigosilverback on Jan 27, 2024 5:43:02 GMT -5
/\ Walruses are dangerous prey without a doubt.
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Post by Gorilla king on Jan 27, 2024 8:17:32 GMT -5
/\ Walruses are dangerous prey without a doubt. |
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Post by Gorilla king on Apr 14, 2024 18:33:43 GMT -5
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Post by Gorilla king on Apr 14, 2024 18:41:46 GMT -5
Ethology and Behavioral Ecology of the Walrus (Odobenus rosmarus), with Emphasis on Communication and Social Behavior
 3 The large tusks (upper canines) of the walrus (Odobenus rosmarus) serve various non-social functions. (a) Tusks assist in locomotion on ice or land; here a thin ailing adult female is using her tusks as a fifth limb, pulling her body up the beach. (b) A male resting on land uses his tusks as props. (c) An adult male asleep in a breathing hole, holding himself in place by the tusks. (d) Most of the males (foreground) in this mixed herd hold themselves in place with their tusks against the ice. (e, f) Adult walruses threaten polar bears (Ursus maritimus) approaching them on sea ice and land. Credits: a, b, d, f, Anatoly A. Kochnev; c, Eliezer Gurarie; e, Svetlana Artemyeva
www.researchgate.net/figure/The-large-tusks-upper-canines-of-the-walrus-Odobenus-rosmarus-serve-various_fig2_352069724
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