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Post by Vodmeister on Mar 12, 2014 22:39:07 GMT 5
Data on the mean size and measurements North American Grizzly bear. All the credit to the following data goes to Bear Biology. Data on grizzly bear weights from specific age groups: Very reliable, large sample size. 4 bears * 199.0 kg = 796.0 kg 2 bears * 261.1 kg = 522.2 kg 2 bears * 233.8 kg = 467.6 kg 1 bear * 301.9 kg = 301.9 kg 2 bears * 259.9 kg = 519.8 kg 1 bear * 147.6 kg = 147.6 kg 1 bear * 215.7 kg = 215.7 kg 1 bear * 238.4 kg = 238.4 kg Average = 505.36 pounds Average weight of a North American grizzly bear, according to this study, if we use +12 year old boar grizzly bear, would be 184-222 kg (depending whether they use dumps or not). The heaviest was 325 kg; Average is at 505.7 pounds without sample size affect, 437.3 with it. Also some interesting stuff; Data on measurements:
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Post by Vodmeister on Mar 12, 2014 22:39:40 GMT 5
Data on average weights of various populations of grizzlies (include coastal brown bears): Now, here is a reliable document, upon grizzlies; Data on brown bears of Alaska Peninsula; Data on Kamchatka brown bears; Excessive hunting can cause a sharp decline in the size of an animal. The bigger are weeded out, and the smaller are left to breed. Records in Chinese hunting: The 275kg female brown bear and the 225kg male brown in the Northeast China. Sex\boby mass\HB length\Tail lenght\Hind foot length\Ear length The 212kg female Tibetan brown bear and other about Tibetan brown bear. Sex\boby mass\HB length\Tail lenght\Hind foot length\Ear length The 350kg female brown bear in the Northeast China according to hunter.
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Post by Vodmeister on Mar 12, 2014 22:44:21 GMT 5
Bear hunting in Alaska: the brown & grizzly bear hunter's guide - By Tony Russ Another study done by Bear Biology;
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Post by Vodmeister on Mar 12, 2014 22:45:24 GMT 5
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Post by Vodmeister on Mar 12, 2014 22:47:26 GMT 5
Here's data on the absolute largest subspecies of Brown Bears, those of Alaska Peninsula and Kodiak Island. Study on Kodiak Brown Bears; 835 pounds is an average for a sub-adult 8-9 year old Kodiak. Notice the section under Adult Weight. "Willard A. Troyer writes: Four males weighed in the fall ranged from 960 - 1,346 pounds and three spring species ranged from 813 - 1190 lbs." Take the median value between 813 and 1190, and you'll come up with an average of about 1000 lbs for boar Kodiak Brown Bears. ADF&G technical report on Alaskan Grizzlies suggests an average weight of 441 kg, or 974 lbs for mature (>10 y.o.) Brown Bears from Alaska Peninsula.
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Post by Vodmeister on Mar 12, 2014 22:51:39 GMT 5
Kamchatka Brown Bear; "The bigger of the two was about 10 feet tall and weighed about 1,050 pounds. The smaller one stood 9 feet tall and weighed about 950 pounds." 15 March 2008 - By John Gunther theworldlink.com/sports/outdoors/bears-provide-fun-challenge-for-taxidermist/article_cc8f9f59-b7e4-5b0b-8334-0022fba96248.html#ixzz1mdG4FFDIMean mass, 1000 lbs. Sample size, 2. "Size and mass of Kamchatka subtype of brown bear (U a. piscator of Pucheran, 1855) one of the largest ground-based bear predators and under optimal conditions the maximum fixed weight of a male of Kamchatka bear registers 600 kg, the average weight 350-450 kg are confirmed data and before the autumn period the weight of record specimens have exceeded 700 kg." (Gordienko, 2005). Mean mass 400 kg (882 lbs). Sample size, unknown. "The dimensions of this bear exceed the dimensions of usual brown. Its length frequently reaches 250 cm, with the height before the arms 140 cm. the weight of the old male before the bedding before the den frequently reaches 400 kg, but there are the cases of the acquisition of bears before 425 kg. Fat in this colossus sometimes can weigh up to 150 kg." (N.A. Baikov) Similar to Gordienko, Baikov also suggests a mean spring/summer mass 400 kg (882 lbs). The first source isn't really a study, so I'd take the other two as prime examples of evidence to support that Kamchatka Brown Bear average about 400 kg.
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Post by Vodmeister on Mar 12, 2014 22:52:40 GMT 5
The average weight of the American Black Bears is roughly 263 pounds;
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Post by creature386 on Mar 15, 2014 20:14:29 GMT 5
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Post by Ceratodromeus on Apr 13, 2016 1:41:03 GMT 5
post i've made elsewhere on the sloth bear i cannot find alot on the weights of these bears besides this [relatively] small "semicaptive" sample of males and nonpregnant females from herei've questioned the validity of a ~290lb average weight for adult males as well; gary brown gives the highest recorded animal at 385lbs(174.6kg) in his bear almanac now back to questioning the 290lb average for males, i do so because i've come across this in my research of this bear; suggests that only the larger, older bears will weigh this much. from The great and small game of India, Burma, & Tibet(1900)
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Post by Ceratodromeus on Apr 26, 2016 4:49:55 GMT 5
morphometric measurements of the usurri black bear(ursus thibetanus urrsicus) from mammals of the soviet union
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