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Post by brobear on Jan 10, 2020 18:00:11 GMT 5
In a completely fair size-parity face-off; equal in head-and-body length measured from nose to rump, the Russian black grizzly has greater girth in neck, limbs, and torso giving him a weight advantage of nearly 200 pounds ( 90.72 kg ) with average sized mature male animals.
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Post by dinosauria101 on Jan 10, 2020 21:14:33 GMT 5
brobearActually, the bear is only 48 kg larger. Not 90. That is what GG's post says
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Post by brobear on Jan 11, 2020 1:32:04 GMT 5
brobear Actually, the bear is only 48 kg larger. Not 90. That is what GG's post says Average mature male Ussuri brown bear - 600 pounds. Average mature Amur tiger - 420 pounds. domainofthebears.proboards.com/  |
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smedz
Junior Member
Posts: 195 
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Post by smedz on Jan 11, 2020 1:46:25 GMT 5
dinosauria101
Actually, it's a 176 lb difference (80 kg)
brobear
The average is 595, not 600 according to GG's new post. But in all fairness is pretty close to 600.
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Post by DonaldCengXiongAzuma on Jan 11, 2020 9:59:29 GMT 5
No tigers killed by bears in the Sikhote-Alin reserve from 1976-2001.  But this chart is only in the Sikhote-Alin Reserve.
But what happened in the Khabarovski and Primorski krais between 1985 and 1996? 7 tigers were killed by brown bears between 1985-1996.  The Khabarosky Krai is just north of the Sikhote-Alin Reserve (where in the period from 1976-2001 there were no tigers killed by bears), and the Primorsky Krai is just to the south.  ![]() From Domain of the Bears. |
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Post by DonaldCengXiongAzuma on Jan 11, 2020 10:06:02 GMT 5
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Post by brobear on Jan 11, 2020 11:12:04 GMT 5
dinosauria101 Actually, it's a 176 lb difference (80 kg) brobear The average is 595, not 600 according to GG's new post. But in all fairness is pretty close to 600. Its OK to round the numbers off to the nearest 10 pounds for large carnivores. These numbers are not carved in stone. Each study is conducted with just a hand-full of animals. To get a truly accurate average would undertake drugging and weighing every single mature Ussuri brown bear 9 years old and up - an impossible task. |
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Post by dinosauria101 on Jan 11, 2020 16:47:19 GMT 5
dinosauria101 Actually, it's a 176 lb difference (80 kg) brobear The average is 595, not 600 according to GG's new post. But in all fairness is pretty close to 600. Didn't Guate's post say otherwise? BTW if you want to tag me (or anyone else), put @username brobear, is that as up to date as what Guate said? |
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Post by brobear on Jan 11, 2020 17:31:17 GMT 5
brobear, is that as up to date as what Guate said?
It's as up to date as I have found.
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Post by DonaldCengXiongAzuma on Jan 11, 2020 18:24:52 GMT 5
Just for interest both the Ussuri brown bear and the Tibetan blue bear are called horse bears. In fact the Tibetan blue bear looks like a smaller version of the Ussuri brown bear.
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Post by brobear on Jan 11, 2020 18:59:03 GMT 5
From the beginning; the birth of the very first grizzly in China one million years ago, he has known his greatest natural enemy, the tiger.
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Post by dinosauria101 on Jan 11, 2020 19:08:50 GMT 5
brobear, is that as up to date as what Guate said? It's as up to date as I have found. How can we trust that what you have posted is any more reliable than what Guate posted? He is a leading wildlife researcher after all |
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smedz
Junior Member
Posts: 195
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Post by smedz on Jan 11, 2020 20:28:31 GMT 5
In the diet of the Amur tigers, bears play a signifi-
cant role, though not the primary one (Table 1). In the
study area, only ungulates are more important than
bears: red deer, wild boar, and roe deer (Miquelle et
al., 2005; Seryodkin et al., 2012; Mukhacheva et al.,
2014). Among the brown bears killed by tigers and
found by us, there was only one three- or four-year-
old male; the rest were females and a bear cub. The sex
of the Asiatic black bears obtained by the tiger, appar-
ently, did not matter for the latter. The presence of
bear cubs, probably, makes females more accessible
for tigers, because, in protecting their offspring,
females are exposed to increased danger.
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Post by brobear on Jan 12, 2020 13:18:27 GMT 5
A tiger will not choose a mature male grizzly as potential prey. A tiger always kills a bear with a bite to the back of the neck. A boar grizzly has a neck thickly layered with muscle and thicker than his skull. A tiger cannot kill quickly with such a bite and thus an ambush would likely become a fight. Tigers have in a few cases been found feeding on the carcass of adult male grizzlies; leaving open the possibility that the bear was killed by the tiger. But equally as likely that the bear was killed by a hunter's bullet or by a bigger bear.
Amur tigers normally hunt juvenile bears. Mostly those three and four year olds away from Mama Bear and new to survival. Less commonly a tiger will ambush a mature she-grizzly. This has proved to be a dangerous prey choice for the big cat; according to the 20 minute struggle Dale experienced.
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Post by Life on Jan 12, 2020 13:40:30 GMT 5
A tiger will not choose a mature male grizzly as potential prey. A tiger always kills a bear with a bite to the back of the neck. A boar grizzly has a neck thickly layered with muscle and thicker than his skull. A tiger cannot kill quickly with such a bite and thus an ambush would likely become a fight. Tigers have in a few cases been found feeding on the carcass of adult male grizzlies; leaving open the possibility that the bear was killed by the tiger. But equally as likely that the bear was killed by a hunter's bullet or by a bigger bear. Amur tigers normally hunt juvenile bears. Mostly those three and four year olds away from Mama Bear and new to survival. Less commonly a tiger will ambush a mature she-grizzly. This has proved to be a dangerous prey choice for the big cat; according to the 20 minute struggle Dale experienced. You have a point. The notion of 'scavenging' is completely lost to the Tiger fandom. If a Tiger is spotted feeding on the carcass of a relatively larger/formidable animal, the Tiger must have killed it? Completely absurd assumption. Predators are known to hunt/kill other animals as well as scavenge carcasses - norm around the world. I have highlighted peer-reviewed scientific information about 'prey preferences' of Tigers around the world in these discussions, only for such valuable/reliable information to be handwaved in favor of isolated 'accounts' by the Tiger fandom which might be terribly outdated and/or subjective and/or not peer-reviewed. theworldofanimals.proboards.com/post/52720theworldofanimals.proboards.com/post/52076Tigers are not pack predators to begin with. A lone Tiger, irrespective of sex, must not take unnecessary chances against other formidable predators (relatively larger bears for instance) in an overlapping habitat because these fights will lead to injuries which will eventually hamper the Tiger's ability to hunt and sustain itself after a while. |
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