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Post by King Kodiak on Oct 16, 2020 9:04:34 GMT -5
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Post by brobear on Oct 16, 2020 9:13:29 GMT -5
This makes no sense to me: Average body weigth for adult males ≥ 8 year old =257.7 kg body length = 211 cm Average body weight for adult female ≥ 7 year old 163.75 kg Average body weight for adult female ≥ 4 year old 150 kg body length =178 cm *8 year old male ( not 8 and older ) - 7 year old female. - 4 year old female. This is meaningless.
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Post by King Kodiak on Oct 16, 2020 9:16:29 GMT -5
Am not 100% sure, but i think that means 8+ year olds.
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Post by King Kodiak on Oct 16, 2020 9:21:19 GMT -5
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Post by brobear on Oct 16, 2020 9:48:18 GMT -5
I'm neither a scientist nor a prior college student. Looks interesting though: Proper management of brown bear populations (Ursus arctos) requires knowledge of their ecology, including space use. Brown bear spatial patterns are particularly poorly understood in the Russian Far East, due to lack of telemetry studies. The aim of this work was to study space use by brown bears in the Sikhote-Alin region. From 1993 to 2002, we used VHF radiocollars to collect spatial data from nine males (eight adults and one juvenile) and six females (five adults and one juvenile) in the Middle Sikhote-Alin. Fixed Kernel home range size estimates were larger for males (891.34 ± 346.99 km2) than for females (349.94 ± 543.06 km2). The juvenile home range sizes were 237.24 and 333.64 km2 for the male and female, respectively. The maximum home range size was for the two-year area of one male (9217.36 km2). The core area sizes varied over a wide range (6.12–358.45 km2). The structure and location of home ranges and their core areas depended upon the seasonal habitat selection of bears, as well as the distribution, abundance, and accessibility of foraging resources. Bears’ home ranges overlapped between males and females, as well as between same sex individuals. The results of this work are important for the management of the brown bear population in the Sikhote-Alin
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Post by brobear on Nov 20, 2020 4:20:24 GMT -5
Average body weight for adult female ( Ussuri brown bear ) ≥ 7 year old 163.75 kg ( according to Warsaw ): 361 pounds. Average body weight of Amur tiger ( according to our own weight collection ): 418.9 pounds. *This would suggest that the tiger has roughly a 58-pound weight advantage. Considering that a prime male tiger has great difficulty in breaking through the defenses of a female sloth bear only half his own weight, a stand-off between an Amur tiger and an Ussuri she-bear would most likely have a similar outcome.
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Post by King Kodiak on Nov 20, 2020 18:12:46 GMT -5
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Post by brobear on Nov 28, 2020 14:09:25 GMT -5
We cannot seem to find anything positive on the weights of famale Ussuri brown bears. According to: "Tiger vs Brown Bear in the Wild" page #1 - Average mature female Ussuri brown bear (5 years+) - 416.7 pounds. So, until we find some accurate info; male Amur tiger and Ussuri she-bear should be considered as a weight-party face-off. Even though a female sloth bear less than half of a male tiger's weight can usually hold her own, in defense. And even though a she-grizzly is per size stronger than a sloth bear, I will give this face-off a 50/50.
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Post by theundertaker45 on Nov 28, 2020 14:28:37 GMT -5
The issue underneath all of that is that we don't know the age of the bears in Kucherenkov's sample. I used the 5y+ category as I assumed them to be sexually mature individuals but we don't know anything about their age in this sample; same thing with the male Ussuri brown bears. We know that they averaged 264kg but an age class wasn't given, therefore I took the default 5y+ class.
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Post by King Kodiak on Nov 28, 2020 19:33:43 GMT -5
Guys, read reply #65, its very recent, from December 2019, Kucherenko's table is very old. We have to go by the source at reply #65. The averages are:
Average body weigth for adult males ≥ 8 to 16 year old =257.50 kg (568 lbs) body length = 211.63 cm (8 specimens)
Average body weight for adult female ≥ 7-9 year old 163.75 kg (361 lbs), 181.17 cm in length. (4 specimens)
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Post by brobear on Nov 28, 2020 19:50:10 GMT -5
www.researchgate.net/publication/338554040_Space_Use_by_Brown_Bears_Ursus_arctos_in_the_Sikhote-Alin Proper management of brown bear populations (Ursus arctos) requires knowledge of their ecology, including space use. Brown bear spatial patterns are particularly poorly understood in the Russian Far East, due to lack of telemetry studies. The aim of this work was to study space use by brown bears in the Sikhote-Alin region. From 1993 to 2002, we used VHF radiocollars to collect spatial data from nine males (eight adults and one juvenile) and six females (five adults and one juvenile) in the Middle Sikhote-Alin. Fixed Kernel home range size estimates were larger for males (891.34 ± 346.99 km2) than for females (349.94 ± 543.06 km2). The juvenile home range sizes were 237.24 and 333.64 km2 for the male and female, respectively. The maximum home range size was for the two-year area of one male (9217.36 km2). The core area sizes varied over a wide range (6.12–358.45 km2). The structure and location of home ranges and their core areas depended upon the seasonal habitat selection of bears, as well as the distribution, abundance, and accessibility of foraging resources. Bears’ home ranges overlapped between males and females, as well as between same sex individuals. The results of this work are important for the management of the brown bear population in the Sikhote-Alin
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Post by brobear on Nov 28, 2020 19:54:14 GMT -5
*Nothing in this about bear size; at least not anything that I can read. What Warsaw brought to the table is ( IMO ) lacking.
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Post by brobear on Nov 28, 2020 19:57:09 GMT -5
Reply #68 - 215 kilograms is equal to 473.99 pounds ( but we cannot claim this as an average either.
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Post by King Kodiak on Nov 28, 2020 19:57:30 GMT -5
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Post by brobear on Nov 28, 2020 20:04:06 GMT -5
This is what it has for a female Ussuri brown bear: Weight 138 - (m) 163,75 - 215 (n=4) *This is not telling me anything.
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Post by King Kodiak on Nov 28, 2020 20:07:58 GMT -5
This is what it has for a female Ussuri brown bear: Weight 138 - (m) 163,75 - 215 (n=4) *This is not telling me anything. Why not? Its telling you this:
Range was from 138 kg to 215 kg (M) Mean (average) is 163.75 kg
Its very simple really. It even tells you the ages, one specimen was 7, one was 8, and 2 were 9. I know its a very small sample of 4 females only, but its something.
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Post by brobear on Nov 29, 2020 5:13:35 GMT -5
163.75 kilograms is equal to 361.01 pounds. OK, I guess this makes sense considering that a she-bear is little more than half the weight of a boar which averages 631.40 pounds. *This leaves the male Amur tiger with roughly a 60-pound weight advantage. If 60-pounds is a game changer, then surely you would never wager on a lion over a tiger. So, I will hold with my opinion of a 50/50 contest.
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Post by theundertaker45 on Nov 29, 2020 5:49:05 GMT -5
So according to the table that King Kodiak has shared, the following can be concluded:
Average fully grown male Ussuri brown bear (9y+): 286.4kg (631.4lbs); Length: 210cm Average fully grown female Ussuri brown bear (7y+): 163.75kg (361lbs); Length: 181.17cm
I'll therefore edit our weight collection and adjust it to this new data.
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Post by brobear on Nov 29, 2020 6:06:42 GMT -5
So according to the table that King Kodiak has shared, the following can be concluded: Average fully grown male Ussuri brown bear (9y+): 286.4kg (631.4lbs); Length: 210cm Average fully grown female Ussuri brown bear (7y+): 163.75kg (361lbs); Length: 181.17cmI'll therefore edit our weight collection and adjust it to this new data. And I moved those posts concerning the weights of the male to the Ussuri brown bear topic.
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Post by theundertaker45 on Nov 29, 2020 9:39:16 GMT -5
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