Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Aug 6, 2011 19:17:35 GMT -9
I know it occassionally happens but generally its rare. Yet global warming does expose those bears to greater risk from orca predation as those bears have to swim longer distances.
|
|
|
|
Post by grrraaahhh on Aug 7, 2011 2:47:37 GMT -9
Someone else recently asked me the same question.  I have read enough times from numerous literature sources how Orca have killed polar bears & in every account the author state that such a predation event is very rare. I have not read any specific literature detailing such an event although I am sure some exist. We know Orca swim as far north as the Arctic & as you mentioned global warming & decreasing ice are forcing polar bears to swim longer distances often ending in an exhausted hungry polar bear drowning but also increasing the chance to marine predation by Orca. If I do find relating literature (there is a lot of obtained literature I need to review - maybe I already access) I will post here. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Aug 20, 2011 19:27:44 GMT -9
Anyway the orca seems to be the only animal the polar bear fears. Orcas have been recorded to be stranded but their are no accounts of polar bears attacking stranded orcas unlike belugas.
|
|
|
|
Post by grrraaahhh on Sept 19, 2011 15:45:08 GMT -9
Killer Whales & Brown Bear:
Author Garry Brown in his book Great Bear Almanac describes an event where several killer whales where recorded observing a resting brown bear on an estuary beach in British Columbia.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Sept 20, 2011 21:57:01 GMT -9
Thats a great account, the killers were perhaps watching to see if the brown bear would venture into at least the deeper ends of the shallower waters.
|
|
I have read enough times from numerous literature sources how Orca have killed polar bears & in every account the author state that such a predation event is very rare. I have not read any specific literature detailing such an event although I am sure some exist. We know Orca swim as far north as the Arctic & as you mentioned global warming & decreasing ice are forcing polar bears to swim longer distances often ending in an exhausted hungry polar bear drowning but also increasing the chance to marine predation by Orca. If I do find relating literature (there is a lot of obtained literature I need to review - maybe I already access) I will post here.