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+----- Thread: Brown Bears (Info, Pics and Videos) (/topic-brown-bears-info-pics-and-videos)
RE: Brown Bears (Info, Pics and Videos) - Shadow - 11-16-2020
(11-16-2020, 08:19 PM)TheNormalGuy Wrote: Radio-collars and grizzly bears by Michael Morris, Parks Canada October 25, 2001
Radio Telemetry & Wildlife Tracking Introduction to radio-telemetry and wildlife tracking (Yellowstone Grizzly Project)
BIOLOGISTS CAPTURE, COLLAR GRIZZLIES NEAR YELLOWSTONE GENERAL | SEPTEMBER 30, 2020
18 grizzlies were captured ^
Quote:Radio-Collaring Bears
IGBST began radiocollaring grizzly bears in the Greater Yellowstone Ecosystem (GYE) in 1975. Since then, we have radio-monitored over 830 individuals for varying durations, typically for 2 to 3 years. Over 100 individuals have been monitored during more than 5 different years.
- Interagency Grizzly Bear Study Team
IGBST Annual Reports
IGBST Complete Publications 1974 - 2020
Grizzly Bear Mortality Database
Bear Caused Human Fatalities in the GYE, 1892 - Present
Contacts
[I didn't include their phone numbers or emails, but they are available on the first link or by clicking on their name]
Frank van Manen
Supervisory Research Wildlife Biologist
Interagency Grizzly Bear Study Team
Mark Haroldson
Supervisory Wildlife Biologist
Interagency Grizzly Bear Study Team
Chad Dickinson
Biological Science Technician
Interagency Grizzly Bear Study Team
Mike Ebinger
Ecologist
Interagency Grizzly Bear Study Team
Bryn Karabensh
Biologist
Interagency Grizzly Bear Study Team
Craig Whitman
Biological Science Technician
Interagency Grizzly Bear Study Team
APPRAISING STATUS OF THE YELLOWSTONE GRIZZLY BEAR POPULATION BY COUNTING FEMALES WITH CUBS-OF-THE-YEAR
POPULATION TREND OF THE YELLOWSTONE GRIZZLY BEAR AS ESTIMATED FROM REPRODUCTIVE AND SURVIVAL RATES
DISTRIBUTION OF YELLOWSTONE GRIZZLY BEARS DURING THE 1980S
YELLOWSTONE GRIZZLY BEAR MORTALITY, HUMAN HABITUATION, AND WHITEBARK-PINE SEED CROPS
CANNIBALISM AND PREDATION ON BLACK BEARS BY GRIZZLY BEARS IN THE YELLOWSTONE ECOSYSTEM, 1975-1990
FOOD-HABITS OF YELLOWSTONE GRIZZLY BEARS, 1977-1987
MOVEMENTS OF YELLOWSTONE GRIZZLY BEARS
REACTIONS OF GRIZZLY BEARS, URSUS-ARCTOS-HORRIBILIS, TO WILDFIRE IN YELLOWSTONE-NATIONAL-PARK, WYOMING
MORTALITY PATTERNS AND POPULATION SINKS FOR YELLOWSTONE GRIZZLY BEARS, 1973-1985
MONITORING GRIZZLY BEAR POPULATION TRENDS
Size and Growth Patterns of the Yellowstone Grizzly Bear [Blanchard]
By The Way, There are Yellowstone National Park Bear Annual Reports just like for wolves [free to view]
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 (?).
RE: Brown Bears (Info, Pics and Videos) - TheNormalGuy - 11-16-2020
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]
RE: Brown Bears (Info, Pics and Videos) - TheNormalGuy - 11-16-2020
(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
Radio Telemetry & Wildlife Tracking Introduction to radio-telemetry and wildlife tracking (Yellowstone Grizzly Project)
BIOLOGISTS CAPTURE, COLLAR GRIZZLIES NEAR YELLOWSTONE GENERAL | SEPTEMBER 30, 2020
18 grizzlies were captured ^
Quote:Radio-Collaring Bears
IGBST began radiocollaring grizzly bears in the Greater Yellowstone Ecosystem (GYE) in 1975. Since then, we have radio-monitored over 830 individuals for varying durations, typically for 2 to 3 years. Over 100 individuals have been monitored during more than 5 different years.
- Interagency Grizzly Bear Study Team
IGBST Annual Reports
IGBST Complete Publications 1974 - 2020
Grizzly Bear Mortality Database
Bear Caused Human Fatalities in the GYE, 1892 - Present
Contacts
[I didn't include their phone numbers or emails, but they are available on the first link or by clicking on their name]
Frank van Manen
Supervisory Research Wildlife Biologist
Interagency Grizzly Bear Study Team
Mark Haroldson
Supervisory Wildlife Biologist
Interagency Grizzly Bear Study Team
Chad Dickinson
Biological Science Technician
Interagency Grizzly Bear Study Team
Mike Ebinger
Ecologist
Interagency Grizzly Bear Study Team
Bryn Karabensh
Biologist
Interagency Grizzly Bear Study Team
Craig Whitman
Biological Science Technician
Interagency Grizzly Bear Study Team
APPRAISING STATUS OF THE YELLOWSTONE GRIZZLY BEAR POPULATION BY COUNTING FEMALES WITH CUBS-OF-THE-YEAR
POPULATION TREND OF THE YELLOWSTONE GRIZZLY BEAR AS ESTIMATED FROM REPRODUCTIVE AND SURVIVAL RATES
DISTRIBUTION OF YELLOWSTONE GRIZZLY BEARS DURING THE 1980S
YELLOWSTONE GRIZZLY BEAR MORTALITY, HUMAN HABITUATION, AND WHITEBARK-PINE SEED CROPS
CANNIBALISM AND PREDATION ON BLACK BEARS BY GRIZZLY BEARS IN THE YELLOWSTONE ECOSYSTEM, 1975-1990
FOOD-HABITS OF YELLOWSTONE GRIZZLY BEARS, 1977-1987
MOVEMENTS OF YELLOWSTONE GRIZZLY BEARS
REACTIONS OF GRIZZLY BEARS, URSUS-ARCTOS-HORRIBILIS, TO WILDFIRE IN YELLOWSTONE-NATIONAL-PARK, WYOMING
MORTALITY PATTERNS AND POPULATION SINKS FOR YELLOWSTONE GRIZZLY BEARS, 1973-1985
MONITORING GRIZZLY BEAR POPULATION TRENDS
Size and Growth Patterns of the Yellowstone Grizzly Bear [Blanchard]
By The Way, There are Yellowstone National Park Bear Annual Reports just like for wolves [free to view]
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 (?).
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
RE: Brown Bears (Info, Pics and Videos) - TheNormalGuy - 11-16-2020
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]
RE: Brown Bears (Info, Pics and Videos) - Maritimus77 - 11-16-2020
@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.
RE: Brown Bears (Info, Pics and Videos) - Shadow - 11-17-2020
(11-16-2020, 10:53 PM)Maritimus77 Wrote: @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.
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.
RE: Brown Bears (Info, Pics and Videos) - TheNormalGuy - 11-17-2020
You know that only 10 % of them are collared ?
RE: Brown Bears (Info, Pics and Videos) - Shadow - 11-17-2020
(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.
RE: Brown Bears (Info, Pics and Videos) - Shadow - 11-22-2020
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/Evaluation-of-body-condition-using-body-mass-and-in-Moriwaki-Omori/a81dc058f49f924f35b6039a66dfe6db9ba6eff2
RE: Brown Bears (Info, Pics and Videos) - Shadow - 11-22-2020
Brown bear nursing cubs. From Finland, summer 2016.
RE: Brown Bears (Info, Pics and Videos) - Shadow - 11-22-2020
(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.
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/Evaluation-of-body-condition-using-body-mass-and-in-Moriwaki-Omori/a81dc058f49f924f35b6039a66dfe6db9ba6eff2
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.
RE: Brown Bears (Info, Pics and Videos) - Shadow - 12-01-2020
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/lasarnas-jakter/unik-film-se-nar-stor-bjorn-kliver-upp-ur-sitt-ide/
RE: Brown Bears (Info, Pics and Videos) - Shadow - 12-08-2020
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"
RE: Brown Bears (Info, Pics and Videos) - Shadow - 12-09-2020
Big bears notices that bigger one arrives.... Romania 2018.
RE: Brown Bears (Info, Pics and Videos) - Shadow - 12-13-2020
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, has lived in 6ft by 9ft cage since he was snatched from his mother as cub
- He was one of four bears taken from Ainu Culture Museum on Hokkaido, Japan, to Yorkshire Wildlife Park
- Eighteen months ago tourists brought bear to attention of Wild Welfare, a charity that helps captive animals
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