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Post by Deleted on May 9, 2019 5:21:39 GMT -5
Makes a lot of sense. The home of the kodiak bear is indeed an isolated area.
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Post by Deleted on May 9, 2019 5:24:19 GMT -5
t. Life span: Around 20 to 30 years in the wild. The oldest recorded bears in Alaska were a 38 year old male and a 39 year old female. Food: The bears are omnivorous and eat plants, grasses, sedges, roots, tubers, seeds, berries, salmon, small mammals and carrion. They will also predate upon moose, particularly newborn animals. The longevity of the oldest male and female are only one year apart. Male tigers and lions have shorter lifespans than their female counterparts. It seems the brown bears beat tigers and lions not just in terms of strength but lifespan as well .
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Post by Deleted on May 9, 2019 5:36:12 GMT -5
Just a quick question about the silver -tip, is it the same as a grolar bear or is it another brown bear subspecies? The silver tip according to info posted is just as aggressive as a grizzly and no man goes to hunt it on his own. I can't seem to find the info.
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Post by King Kodiak on May 9, 2019 6:03:24 GMT -5
Just a quick question about the silver -tip, is it the same as a grolar bear or is it another brown bear subspecies? The silver tip according to info posted is just as aggressive as a grizzly and no man goes to hunt it on his own. I can't seem to find the info. No. Grizzly bears are sometimes referred to as "silvertip" because of their silver tipped fur. Its not a grolar bear.
www.natezeman.com/photo/silvertip/
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Post by Deleted on Jul 9, 2019 9:29:25 GMT -5
I feel like grizzlies in the arctic should be a different sub species than the same ones in Yellowstone. Arctic grizzly bears are more aggressive, smaller, hibernate longer, and are more carnivorous.
Same with coastal brown bears because some people say that they’re either just kodiaks or they’re just grizzly bears who live near the coasts. They have a lot of differences from the interior grizzlies like they’re larger, eat a almost completely different diet from interiors, and they don’t hibernate as long and some bears are starting to not hibernate in general because since they live near water the temperature doesn’t change much throughout the year.
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Post by King Kodiak on Jul 9, 2019 15:47:36 GMT -5
Yeah i agree with you. I dond believe in 86 different brown bear subspecies like 100 years ago, but more than 2 yes. Still, bear biologists disagree till this day. But, most agree on just 2 brown bear subspecies in North America. Grizzly bear (Ursus arctos horribilis), and Kodiak bear (Ursus arctos middendorffi). They agree that the differences are not much to separate them into more subspecies.
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Post by tom on Jul 9, 2019 15:48:01 GMT -5
Take a look at brobears 1st post that started this thread. He goes into good detail on the Brown Bear sub-species.
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Post by King Kodiak on Jul 9, 2019 15:57:10 GMT -5
Take a look at brobears 1st post that started this thread. He goes into good detail on the Brown Bear sub-species. Most of those are either extinct or not from North America. For example, the Alaska peninsula brown bear (Ursus arctos gyas), was dismissed by most bear biologists long time ago. Now its just considered Ursus arctos horribilis even though its much larger than interior grizzly bears.
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Post by tom on Jul 9, 2019 16:54:03 GMT -5
Take a look at brobears 1st post that started this thread. He goes into good detail on the Brown Bear sub-species. Most of those are either extinct or not from North America. For example, the Alaska peninsula brown bear (Ursus arctos gyas), was dismissed by most bear biologists long time ago. Now its just considered Ursus arctos horribilis even though its much larger than interior grizzly bears.I would tend to agree although one could make an argument about the Kodiak Bear being a true sub-species which has been isolated from the rest of Alaska for the past 12,000 years.
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Post by King Kodiak on Jul 9, 2019 17:42:11 GMT -5
Most of those are either extinct or not from North America. For example, the Alaska peninsula brown bear (Ursus arctos gyas), was dismissed by most bear biologists long time ago. Now its just considered Ursus arctos horribilis even though its much larger than interior grizzly bears. I would tend to agree although one could make an argument about the Kodiak Bear being a true sub-species which has been isolated from the rest of Alaska for the past 12,000 years. Oh yeah definitely Tom. It is a different subspecies and very well decided by the way. But the differences here are very well established. Kodiak bears are isolated on an island, they are much larger than the rest of the brown bears, and they have developed a more complex social structures and communication that allows them to live together with minimal conflict. That is why this is a lone subspecie.
URSUS ARCTOS MIDDENDORFFI THE BEST OF THE LAND.
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Post by Deleted on Jul 9, 2019 21:15:51 GMT -5
I would tend to agree although one could make an argument about the Kodiak Bear being a true sub-species which has been isolated from the rest of Alaska for the past 12,000 years. Oh yeah definitely Tom. It is a different subspecies and very well decided by the way. But the differences here are very well established. Kodiak bears are isolated on an island, they are much larger than the rest of the brown bears, and they have developed a more complex social structures and communication that allows them to live together with minimal conflict. That is why this is a lone subspecie.
URSUS ARCTOS MIDDENDORFFI THE BEST OF THE LAND.Most coastal bear species r like that tho. Kodiak bears r known as island bears since they aren’t only in kodiak they’re also on the surrounding islands just kodiak is the largest island. I think island bear sounds cooler as well. Also Alaska Peninsula bears r just as large as kodiaks on average. Same with most coastal brown bears. There also r definitely more than just 1 brown bear sub species in North America. The arctic grizzlies r much more different than that of interior grizzlies it doesn’t even make sense to call them interior since some live near the water of the arctic in search of washed up carcasses. And as I said before the other coastal brown bears should be a different sub species from interior grizzlies it makes most sense to call these coastal brown bears as a generalization over the sub species and then you can have different populations in the sub species like Alaskan peninsula and British Columbian coastal. Same with interior grizzlies like have grizzly be known as the sub species and then have different populations of grizzlies like Yellowstone and then Banff. Same thing with arctic bears have the sub species be known as arctic bear and then have different populations like barren ground and then a different population that is closer to the ocean like in Manitoba. That’s just my 5 cents on this whole sub species deal.
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Post by King Kodiak on Jul 9, 2019 21:45:00 GMT -5
Well, Alaska peninsula brown bears are huge, they average around 800 lbs. Kodiaks are larger, they average over 835 lbs. the bottom line is there are only 2 widely accepted brown bear subspecies in North America. You might not agree with it, but its just the way it is.en.m.wikipedia.org/wiki/Alaska_Peninsula_brown_bear
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Post by OldGreenGrolar on Jul 9, 2019 21:53:48 GMT -5
The Kodiak bear seems to be in a league of its own. That is interesting.
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Post by King Kodiak on Jul 9, 2019 22:15:16 GMT -5
THE GREAT BEAR ALMANAC. IN RECENT TIMES, THE NUMBER OF GRIZZLY BEAR SUBSPECIES HAS BEEN REDUCED TO A SENSITIVE AND BASIC FEW.
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Post by tom on Jul 10, 2019 1:44:44 GMT -5
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Post by King Kodiak on Nov 17, 2019 16:45:45 GMT -5
Cranometric Variability in Brown Bears of the Russian Far East Morphometric analysis of 282 skulls of the brown bear Ursus arctos from the Far Eastern part of the range was carried out. The presence of two morphological clusters for both males and females is shown. Samples from two clusters were compared with their geographical location and subspecies. It was found that one cluster or another had no specific reference to the particular region or subspecies of a particular cluster, only the superiority of one over the other in a cluster of different subspecies and regions was changed. A comparison with the spread of brown bear genetic lines in the Far East of Russia is made. It was noted that the precise distribution of a particular cluster to a specific genetic line of haplotypes was not found. ... Based on morphological differences and geographic locations, brown bears in Central Asia have been classified into several different subspecies. For example, brown bears in the Altai region of Russia have been classified variously as East Siberian brown bears (U. a. collaris) or as Mongolian brown bears (U. a. jeniseensis) . Brown bears from the Sayan and Khentii mountains on the Mongolian Plateau have been variously classified as Mongolian or Eurasian brown bears (U. a. arctos) ... ... For example, brown bears in the Altai region of Russia have been classified variously as East Siberian brown bears (U. a. collaris) or as Mongolian brown bears (U. a. jeniseensis) . Brown bears from the Sayan and Khentii mountains on the Mongolian Plateau have been variously classified as Mongolian or Eurasian brown bears (U. a. arctos). The question of subspecies classification has direct implications for conservation planning, as it may affect the recognition of a population as an endangered species or subspecies ... www.google.com/amp/s/www.researchgate.net/publication/326373974_Cranometric_Variability_in_Brown_Bears_of_the_Russian_Far_East/amp
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Post by brobear on Jul 9, 2020 6:38:50 GMT -5
There are 2 subspecies of sun bears, 2 subspecies of sloth bears, 7 subspecies of Asiatic black bears, and 16 subspecies of North American black bears. As for North American brown bears, we have 2 subspecies. My thoughts ( my opinion ) the biologists either could not agree or just got lazy. There is a difference between the grizzlies of Wyoming and Montana, coastal Alaska, inland Alaska, Canada, and the arctic tundra. There are differences in size, color, and their habits. I feel certain that in reality, there are no less than a half dozen subspecies of North American brown bears. Pictured: Here is a coastal brown bear taking on a Yellowstone grizzly; the size difference between the two is enormous, these coastal brown bears are real life giants! Both are classified as Ursus arctos horribilis.
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Post by OldGreenGrolar on Jul 9, 2020 9:17:41 GMT -5
Both bears above look more muscular than the Ussuri brown bear which is also called the black grizzly.
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Post by King Kodiak on Jul 9, 2020 9:27:42 GMT -5
Ok so i take it you agree with the old bear biologists and zoologists that had listed 86 North american brown bear subspecies?
From your first post on page 1 of this thread:
As many as 86 subspecies have been listed, but now only a few are recognised. In North America there may be only two to four extant subspecies: Ursus arctos horribilis (grizzly bear), Ursus arctos middendorffi (Kodiak bear) are well recognised, but Ursus arctos gyas (peninsular brown bears of the Alaskan coast) and Ursus arctos richardsoni (barren ground grizzly) are doubtful. Ursus arctos californicus (Californian grizzly) is probably extinct.
domainofthebears.proboards.com/thread/189/brown-bear-subspecies?page=1
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Post by brobear on Jul 9, 2020 9:52:25 GMT -5
Quote: Ok so i take it you agree with the old bear biologists and zoologists that had listed 86 North american brown bear subspecies? *Probably not that many; but the problem was that ( it seems ) no two biologists or naturalists could agree where to separate the various subspecies. Also, 100 years ago, and the further back you go, the more subspecies you will find. But when I look at the barren ground grizzly, the Rocky Mountain grizzly, and the Alaskan peninsula grizzly, I am looking at three very different bears. *edit and add: Today, biologists should be able to separate subspecies with DNA testing.
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