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 (11-16-2020, 08:19 PM)TheNormalGuy Wrote: Radio-collars and grizzly bears by Michael Morris, Parks Canada October 25, 2001 A lot of links, interesting to read when more time. But did you have some new weight information or does some of those links include such? I´m now in a bit hurry but will check later. But it would be nice if you could tell which link is about weights, because two first which I briefly opened seemed to be overall about radio collaring, no weights (?). 
I will help a bit (for all in Yellowstone)
Wolf-cougar interactions Howard Quigley, Toni Ruth Hornocker Wildlife Institute Wolf-coyote interactions Bob Crabtree, Jennifer Sheldon Yellowstone Ecosystem Studies Wolf-elk relationships in the Bob Garrott, Rose Jaffe Montana State University Firehole watershed Wolf stress hormones Scott Creel, Jennifer Sands Montana State University Wolf-scavenger relationships Wayne Getz, Chris Wilmers California State University, Berkeley Wolf-carnivore-human interactions Howard Quigley Hornocker Wildlife Institute Charles Schwartz Interagency Grizzly Bear Study Team Dan Tyers U.S. Forest Service, Gallatin National Forest Gardiner District Kevin Fry Montana Dept. of Fish, Wildlife and Parks ^ 1999 Wolf–cougar interactions Howard Quigley, Toni Ruth Hornocker Wildlife Institute Wolf–coyote interactions Bob Crabtree, Jennifer Sheldon Yellowstone Ecosystem Studies Wolf–elk relationships in the Bob Garrott, Rose Jaffe Montana State University Firehole watershed Wolf stress hormones Scott Creel, Jennifer Sands Montana State University Wolf–scavenger relationships Wayne Getz, Chris Wilmers; California State University, Berkeley; Bob Crabtree Yellowstone Ecosystem Studies Wolf howling John and Mary Theberge University of Waterloo, Canada ^ 2000 Wolf–cougar interactions Howard Quigley, Toni Ruth Hornocker Wildlife Institute Wolf–coyote interactions Robert Crabtree, Jennifer Sheldon Yellowstone Ecosystem Studies Wolf–bear interactions Charles Schwartz, Mark Haroldson; Interagency Grizzly Bear Study Team; Kerry Gunther YNP Wolf–elk relationships in the Bob Garrott, Eric Bergman Montana State University Firehole watershed Wolf stress hormones Scott Creel, Jennifer Sands Montana State University Wolf–scavenger relationships Wayne Getz, Chris Wilmers; California State University, Berkeley; Bob Crabtree Yellowstone Ecosystem Studies Wolf–aspen William Ripple Oregon State University ^ 2001 Wolf-cougar interactions Toni Ruth, Howard Quigley Hornocker Wildlife Institute/Wildlife Conservation Society Wolf-coyote interactions Robert Crabtree, Jennifer Sheldon Yellowstone Ecosystem Studies Wolf-bear interactions Charles Schwartz, Mark Haroldson Interagency Grizzly Bear Study Team Wolf-scavenger relationships Chris Wilmers, Wayne Getz; Bob Crabtree University of California at Berkeley; Yellowstone Ecosystem Studies Wolf-elk relationships—Firehole Watershed Bob Garrott, Eric Bergman Montana State University Wolf-pronghorn John Byers University of Idaho Wolf-willow Francis Singer USGS Wolf-aspen William Ripple Oregon State University Wolf-trophic cascades L. David Mech; Mark Boyce, Nathan Varley; Rolf Peterson USGS; University of Alberta; Michigan Technological University Wolf predation Tom Drummer Michigan Technological University Wolf survival Dennis Murray University of Idaho; Trent University ^ 2002 Wolf–cougar interactions Toni Ruth, Howard Quigley Wildlife Conservation Society Wolf–coyote interactions Robert Crabtree, Jennifer Sheldon Yellowstone Ecological Research Center Wolf–bear interactions Charles Schwartz, Mark Haroldson Interagency Grizzly Bear Study Team Wolf–scavenger relationships Chris Wilmers, Wayne Getz; University of California at Berkeley; Bob Crabtree Yellowstone Ecological Research Center Wolf–elk relationships in the Bob Garrott, Eric Bergman Montana State University Firehole Watershed Wolf–elk calf mortality L. David Mech, Shannon Barber University of Minnesota Wolf–pronghorn John Byers University of Idaho Wolf–willow Francis Singer USGS Wolf–aspen William Ripple Oregon State University Wolf–trophic cascades L. David Mech; USGS; Mark Boyce, Nathan Varley; University of Alberta; Rolf Peterson Michigan Technological University Wolf predation Tom Drummer Michigan Technological University Wolf survival Dennis Murray University of Idaho; Trent University ^2003 Wolf–cougar interactions Toni Ruth Wildlife Conservation Society Wolf–coyote interactions Robert Crabtree, Jennifer Sheldon Yellowstone Ecological Research Center Wolf–bear interactions Charles Schwartz, Mark Haroldson Interagency Grizzly Bear Study Team, Kerry Gunther Bear Management Offi ce (YCR) Wolf–carnivore interactions Howard Quigley Beringia South Wolf–elk relationships in the Bob Garrott, Matt Becker, Montana State University Madison–Firehole watershed Claire Gower Wolf–elk calf mortality P.J. White, L. David Mech, YCR, University of Minnesota Shannon Barber Wolf–pronghorn P.J. White, John Byers, YCR, University of Idaho Wolf–willow Evelyn Merrill, Francis Singer, University of Alberta, USGS, Roy Renkin, William Ripple, YCR, Oregon State University, David Cooper, Tom Hobbs, Colorado State University Don Despain Wolf–aspen William Ripple, Eric Larsen, Oregon State University, University Roy Renkin, Matt Kauffman of Wisconsin at Stevens Point, YCR, University of Montana Wolf–trophic cascades L. David Mech, Rolf Peterson, University of Minnesota, Nathan Varley, Mark Boyce, Michigan Technological University, Francis Singer University of Alberta, USGS Wolf predation Tom Drummer, John Vucetich, Michigan Technological University Rolf Peterson Wolf survival Dennis Murray Trent University ^ 2004 Wolf–cougar interactions Toni Ruth Wildlife Conservation Society Wolf–coyote interactions Robert Crabtree, Jennifer Sheldon Yellowstone Ecological Research Center Wolf–bear interactions Charles Schwartz, Mark Haroldson, Interagency Grizzly Bear Study Team, Kerry Gunther Bear Management Offi ce (YCR) Wolf–carnivore interactions Howard Quigley Beringia South Wolf population genetics Robert Wayne, Bridgett vonHoldt University of California, Los Angeles Wolf–elk relationships in the Bob Garrott, Matt Becker, Montana State University Madison–Firehole watershed Claire Gower Wolf–elk calf mortality P.J. White, L. David Mech, YCR, University of Minnesota Shannon Barber Wolf–pronghorn P.J. White, John Byers YCR, University of Idaho Wolf–willow Evelyn Merrill, Francis Singer, University of Alberta, USGS, Roy Renkin, William Ripple, YCR, Colorado State University David Cooper, Tom Hobbs, Don Despain Wolf–aspen William Ripple, Eric Larsen, Oregon State University, University Roy Renkin, Matt Kauffman of Wisconsin at Stevens Point, YCR, University of Montana Wolf–trophic cascades L. David Mech, Mark Boyce, University of Minnesota, Nathan Varley, Rolf Peterson, Michigan Technological University, Dan MacNulty University of Alberta, USGS Wolf predation Tom Drummer, John Vucetich, Michigan Technological University Rolf Peterson Wolf survival Dennis Murray Trent University ^2005 Wolf–cougar interactions Toni Ruth Wildlife Conservation Society Wolf–coyote interactions Robert Crabtree, Jennifer Sheldon Yellowstone Ecological Research Center Wolf–bear interactions Charles Schwartz, Mark Haroldson, Interagency Grizzly Bear Study Team, Kerry Gunther Bear Management Office (YCR) Wolf–carnivore interactions Howard Quigley Beringia South Wolf–scavenger interactions Chris Wilmers University of California, Davis Wolf population genetics Robert Wayne, University of California, Los Angeles Bridgett vonHoldt, Daniel Stahler Wolf–elk relationships, Bob Garrott, Matt Becker, Montana State University, YCR Madison–Firehole watershed Claire Gower, P.J. White Wolf–pronghorn P.J. White, John Byers, YCR, University of Idaho Kerey Barnowe-Meyer Wolf–willow Evelyn Merrill, Roy Renkin, University of Alberta, YCR, William Ripple, David Cooper, Oregon State University, Colorado State Tom Hobbs, Don Despain University, USGS Wolf–aspen William Ripple, Eric Larsen, Oregon State University, University of Roy Renkin, Matt Kauffman Wisconsin at Stevens Point, YCR, University of Montana Wolf–trophic cascades L. David Mech, Mark Boyce, USGS, University of Alberta, Michigan Nathan Varley, Rolf Peterson, Technological University, University of Dan MacNulty Minnesota Wolf predation Tom Drummer, John Vucetich, Michigan Technological University, Rolf Peterson, Dan MacNulty University of Minnesota Wolf survival Dennis Murray Trent University Wolf population genetics Robert Wayne, Daniel Stahler, University of California, Los Angeles Bridgett vonHoldt, John Pollinger Wolf diseases and parasites L. David Mech, Emily Almberg USGS, University of Minnesota Wolves, willows, and songbirds Andy Hansen, Lisa Baril Montana State University Wolf movements/dispersal Douglas McWhirter, L. David Mech, Wyoming Game and Fish, Mike Jimenez USGS, USFWS ^2006 Wolf–cougar interactions Toni Ruth, Wildlife Conservation Society Wolf–coyote interactions Robert Crabtree, Jennifer Sheldon Yellowstone Ecological Research Center Wolf–bear interactions Charles Schwartz, Mark Haroldson, Interagency Grizzly Bear Study Kerry Gunther Team, YCR Bear Management Office Wolf–carnivore interactions Howard Quigley Beringia South Wolf population genetics Robert Wayne, University of California at Los Angeles Bridgett vonHoldt, John Pollinger Wolf–elk relationships, Bob Garrott, Matt Becker, Montana State University Madison-Firehole Watershed Claire Gower, Shana Dunkley Wolf–pronghorn P.J. White, John Byers YCR, University of Idaho Wolf–willow Evelyn Merrill, Francis Singer, University of Alberta, USGS, Roy Renkin, Bill Ripple, YCR, Colorado State University David Cooper, Tom Hobbs, Don Despain, Nathan Varley Wolf–aspen William Ripple, Eric Larsen, Oregon State University, Roy Renkin, Matt Kauffman University of Wisconsin at Stevens Point, YCR, University of Montana Wolf–trophic cascades L. David Mech, Mark Boyce, USGS, University of Alberta, Nathan Varley, Rolf Peterson, Michigan Technological University, John Vucetich University of Minnesota Wolf predation Tom Drummer, John Vucetich, Michigan Technological University Dan McNulty, Rolf Peterson Wolf survival Dennis Murray Trent University ^2007 Wolf–cougar interactions Toni Ruth Wildlife Conservation Society Wolf–coyote interactions Robert Crabtree, Jennifer Sheldon Yellowstone Ecological Research Center Wolf–bear interactions Charles Schwartz, Mark Haroldson, Interagency Grizzly Bear Study Kerry Gunther Team, YCR Bear Management Office Wolf–carnivore interactions Howard Quigley Beringia South Wolf population genetics Robert Wayne, University of California at Los Angeles Bridgett vonHoldt, John Pollinger Wolf–elk relationships, Bob Garrott, Matt Becker, Montana State University Madison-Firehole Watershed Claire Gower, Shana Dunkley Wolf–pronghorn P.J. White, John Byers Yellowstone Center for Resources (YCR), University of Idaho Wolf–willow Evelyn Merrill, Francis Singer, University of Alberta, U.S. Geological Roy Renkin, Bill Ripple, Survey (USGS), YCR, David Cooper, Tom Hobbs, Colorado State University Don Despain, Nathan Varley Wolf–aspen William Ripple, Eric Larsen, Oregon State University, Roy Renkin, Matt Kauffman University of Wisconsin at Stevens Point, YCR, University of Montana Wolf–trophic cascades L. David Mech, Mark Boyce, USGS, University of Alberta, Nathan Varley, Rolf Peterson, Michigan Technological University, Dan MacNulty, John Vucetich University of Minnesota Wolf predation Tom Drummer, John Vucetich, Michigan Technological University Rolf Peterson Wolf survival Dennis Murray Trent University ^ 2008 Source : Yellowstone Wolf Project Annual Reports 2001-2008 [There is more but you get it] (11-16-2020, 08:32 PM)Shadow Wrote:(11-16-2020, 08:19 PM)TheNormalGuy Wrote: Radio-collars and grizzly bears by Michael Morris, Parks Canada October 25, 2001 Didn't have time to check myself. The first link talk about some weight of canadian grizzlys. The second talk about everything on telemetry, tracking, radio-collaring, etc. Third link is about the most recent capture operations of yellowstone in Sept 2020. It do not give weights but it gives how many bears were captured (18) this year. Then it the Interagency Grizzly Bear Study [A Larger Entity than The Yellowstone Wolf Project since it take accounts of the three states at least : Idaho, Wyo, MT i guess] Then the links under the quote are from the small context page of that entity After the contacts, is probably the lead expert in Yellowstone Bears as Doug Smith is with wolves. Bonnie M. Blanchard. Finally, i suggests that there is Annual Reports for yellowstone bears as there are for wolves
Table 8. Grizzly bear capture information from the Cabinet-Yaak 1983-08. Multiple captures of a single bear during a given year are not included. 78 Weights
CABINET-YAAK GRIZZLY BEAR RECOVERY AREA 2008 RESEARCH AND MONITORING PROGRESS REPORT (P.24-25) There is even a summary for each individual bear ! Monitoring Summary of Each Adult Female Grizzly Bear [Cabinet Mountains Native Adult Female Bears] [P.32] [For example] Table 11. Grizzly bears captured, observed, photographed, or genotyped by study personnel in the Yaak study, 1986-2008. [P.62] In fact, I suggest reading [I didn't for times & interests reasons... for now] to every bear enthusiats this. It got everything ! Even That (below) : Appendix Table 1. Known grizzly bear mortality in or near the Cabinet-Yaak recovery zone and the Yahk grizzly bear population unit in British Columbia, 1949-08. [p.73] 
@TheNormalGuy
Again thank you for your efforts, Normal Guy, you've sent me a document regarding the monitoring of Cabinet-Yaak grizzlies and the weight data extracted from that is higly valuable: Mature male grizzlies (5y+, old ones were also included): ~194.2kg (~428.1lbs; n=19) Mature female grizzlies (5y+, old ones were also included): ~126.2kg (~278.2lbs; n=15) Fully grown/Prime male grizzlies (all boars being at least 9y of age and not too old; I excluded one male at 27y of age): ~217.4kg (~479.3lbs; n=8) Fully grown/Prime female grizzlies (all sows being at least 7y of age and not too old; I excluded three females being well over 25y of age): ~141.9kg (~312.8lbs; n=11) Largest male: 270kg (595.2lbs), 14y of age Largest female: 171kg (377lbs), 11y of age Full document is here: http://transbordergrizzlybearproject.ca/pdf/Kasworm%20et%20al%202009.pdf @Shadow I saw that you asked for precise weight data in your previous post here; this might be from great interest for you then. (11-16-2020, 10:53 PM)Maritimus77 Wrote: @TheNormalGuy Well brown bears have variation in size depending of population. These seem to be a bit smaller than Yellowstone population what comes to weight then. Then again so small number weighed that not possible to make too big conclusions. In my country biggest wild bears have been well over 350 kg, biggest was 372 or 373 kg. A 300 kg bear is naturally always big, but not something extraordinary. Then again 791 at Yellowstone is clearly over 300 kg, it´s way larger than 881 which was weighed to be 280 kg so it´s quite safe to make that claim. Hopefully they could weigh 791 also one day, even though I do hope, that they wouldn´t radio collar it. I don´t like to see too many animals radio collared even though I understand, that doing it to some gives valuable information. (11-17-2020, 01:01 AM)TheNormalGuy Wrote: You know that only 10 % of them are collared ? I know that it´s small number which are collared, but exact percentage wasn´t in my knowledge. I wrote what I wrote because I dislike to see collared wild animals and the less there are is better, imo. So if asked from me I would say, that there are at least 9% too much in that number, 1/100 would be better and after some time it would be nice if 0%. They have already a lot of data to analyze. But they do it naturally and with good intentions, so I don´t judge collaring too strongly either. Anyway the less of animals are radio collared is better, imo. I understand it better with animals which are critically endangered and practically almost every individual is very important, like Siberian tigers and other species with only a few hundred individuals left.
I don´t know if this has been shared before, but interesting study concerning body mass and chest girth of Ussuri brown bears living at Hokkaido, Japan. These same bears live also in Russia at same areas with Siberian/Amur tigers.
For some reason I hadn´t seen this before. It has measurements and weights from longer period of time and it confirms that some Ussuri brown bears can be truly huge. Everyone can imagine what it looks like, when a bear can be over 500 kg heavy, chest girth 2,5 meters and standing clearly over 2,5 meters tall. Heaviest bear in this study was 520 kg (1146,5 lbs), biggest chest girth 250 cm (8,2 ft or 8 ft 2,4 in) and biggest body length from tip of the nose to rump 260 cm (8,5 ft or 8 ft 6,4 in). I read this study just briefly now, but I recommend to read all of it if any interest towards brown bears. Some quotes: "Morphometric measurements including body length, chest girth, and body mass were obtained from Hokkaido brown bears harvested from the population for conflict management for the 22 years from August 1991 through December 2012 (n ＝ 3,576; 2,347 males and 1,229 females). Body length (cm) was measured from the nose tip to the anus. Chest girth (cm) was measured as the axillary girth just caudal to the scapula. Body mass (kg) was determined by suspending bears from a spring scale or placing them on an electronic load scale. Data on the presence of offspring, number of accompanying offspring, and estimated age of offspring of harvested bears was also collected from local government personnel and hunters." "Among bears with these measurements, body mass was 3-520 kg for males (n ＝ 642) and 8-204 kg for females (n ＝ 316), body length was 45-260 cm (n ＝ 2,347) and 50-280 cm (n ＝ 1,229), and chest girth was 23-250 cm (n ＝ 2,307) and 28-240 cm (n ＝ 1,218)." https://www.semanticscholar.org/paper/Ev...db9ba6eff2 (11-22-2020, 12:36 AM)Shadow Wrote: I don´t know if this has been shared before, but interesting study concerning body mass and chest girth of Ussuri brown bears living at Hokkaido, Japan. These same bears live also in Russia at same areas with Siberian/Amur tigers. On interesting and a bit odd thing in this study is it, that when looking at figure 2 (Distribution of age - body mass...) there are so many big/very big male bears and then again some very young. When a 300 kg bear is based on chart maybe 2 years old it raises eyebrow. It can be of course that some age determinations have been incorrect. Very big number of bears included and maybe some errors because of it. Still even if some considering it, that some invalid information included this study has a lot of big bears weighing 300-400 kg and then 2-3 really big ones over 400 kg including that one 520 kg heavy. Based on this study it looks obvious, that these bears can really be said to be between of "normal" brown bears/grizzlies and Kodiak/Alaskan peninsula/Kamchatka peninsula bears in size. I don´t remember any other study with that many bears in between 300-400 kg what comes to "normal" brown bears and by this I mean brown bears with no access to rivers with salmon.
This is quite rare and unique footage from Sweden, early April 2020.
Swedish man, Jonas Lindström,was working in the woods in his forestry machine. He was just finishing a working day when he noticed how moss was moving nearby. He took his phone and started to film. He tells, that he had passed that place on foot earlier that day without noticing bear den there. He then cut down a tree near the den and that maybe made the bear to wake up. Dizzy bear walked away and seemed to look back a few times angrily. Lindström told, that first time in years he drove forestry machine back to his car, he didn´t feel that it would have been a good time to walk back  Article concerning this, Swedish translates quite nicely to English with google translator. https://svenskjakt.se/jakt-prylar/lasarn...-sitt-ide/
July 9th 2019, dominant bear 856 asserting his dominance over bear 747 (747 won fat bear contest recently) in Katmai Nationa Park Alaska. More of these videos and some with quite intense fights in thread:
"Intraspecific conflicts, no canids or felids"
This is one stunning story, in sad way, from 2018. These bears were finally lucky, but it is simply disgusting that these bears had to be rescued in the year 2018 from a Japanese "culture museum" where they were held in tiny cages as living exhibits!?!?!?! And Japan is considered to be civilized country...... This article isn´t good to read if hoping to have good mood, but then again if this kind of animal cruelty cases are just passed by it´s not good either. Captive animals deserve to be treated with some minimal respect and obviously it´s not the case in Japan. Hopefully it could be said soon, that it wasn´t. But this isn´t the case of some irresponsible private owner. This disgrace has happened with acceptance of officials in Japan and there are no excuses for this kind of shameful act. To say, that reading this made angry would be a huge understatement. Only good thing is, that at least these bears were saved from barbaric conditions.
Quotes:
Kai, a 17-year-old Ussuri brown bear who has lived in a 6ft by 9ft cage since being snatched as a cub from his mother – who was shot by hunters – places a paw on something that isn’t cold, hard concrete. Yikes! He snorts. He can’t believe it’s soft. He spies a toy, donated by the local fire service, one of many made from old hoses. Kai has never owned a toy. He picks it up and, thrilled, carries it inside his den. The keepers at Yorkshire Wildlife Park near Doncaster don’t want to cheer, as that would be alarming. Instead, water leaks from eyes as phones are held aloft to record this momentous moment. Kai is one of four bears who existed as ‘living’ exhibits in the Ainu Culture Museum on Hokkaido, the northernmost of Japan’s islands. The cubs were once sacrificed, but when that practice ended they were simply locked up. These brown bears are rare: there are only about 10,000 left in Japan. Eighteen months ago, Western tourists, shocked at the barren conditions, brought the four bears to the attention of Wild Welfare, a UK charity that helps captive wild animals. The two brothers, Kai and Riku, would eat, then vomit, as that gave them something to do; all four bears would pace, driven mad with boredom. ‘The museum wanted the bears rehomed,’ Georgina Groves of Wild Welfare tells me. ‘They didn’t have the facilities. Unfortunately, we couldn’t find anywhere in Japan that would take them.’ She got in touch with Yorkshire Wildlife Park (YWP), which has an incredible reputation for rehabilitating wild animals. They said yes, of course. Kai and his fellow inmates were flown 5,400 miles from Japan to the UK, where they arrived on August 3. DHL provided air-conditioned road transport – at a discount price – while the bears were flown in the hold by Japanese Airlines. The journey alone cost £150,000. A team of five vets – two from Japan – helped with the move, which began in 36C heat. Only Hanako, the 27-year-old female, the most inquisitive of the four, went willingly into a crate. Amu, 27, a gentle giant, and brothers Kai and Riku had to be tranquillised."  *This image is copyright of its original author Making a splash: Within minutes, having ripped the bark off a tree stump as easily as if it were a plaster, he has discovered the lake. Whoosh! The whole story and more photos here, this is something people should read, this shouldn´t be allowed anymore anywhere: https://www.dailymail.co.uk/news/article-6050829/After-17-years-Ussuri-brown-bear-tasted-freedom-time.html |
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