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Post by brobear on Mar 18, 2017 10:30:50 GMT -5
Wherever the grizzly has lived, for the most part, and with few exceptions, there has been wolves. Their interspecific relationship is far less violent than between wolf and tiger. A tiger will attempt to kill every wolf foolish enough to live within his domain. He is quite often successful. With the grizzly, only juvenile bears are truly threatened by wolves. A wolf pack will eagerly attack a young grizzly five years old or younger. A mother grizzly is hard pressed to defend her cubs from hungry wolves. A single cub is of course easier to protect than a pair of cubs. Three cubs are extremely difficult to defend. A mature male grizzly will challenge even the biggest wolf pack successfully, no matter the number of wolves. Some bears will habitually follow a wolf pack and devour the "lion's share" of each kill which sometimes causes the wolves to hunt more often than normally. There have been a few known cases of a grizzly and a lone wolf to become friends and playmates; possibly hunting together. A grizzly will, with few exceptions, obtain more red meat from scavenging the kills of other more adequate predators than from his own hunting. Therefore, it is to the grizzly's advantage to have other predators within his domain, such as wolves or cougars.
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Post by brobear on Mar 20, 2017 1:27:22 GMT -5
Bear Almanac by Gary Brown.
Wolf - Wolf-bear relationships have been considered neutral, with only occasional conflicts that are based on defense of home site, food, or young by each species. A wolf and a grizzly bear have fed side by side on a caribou carcass, while at other times a grizzly has fought off a pack of wolves to defend its food, and they each have killed the other.
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Post by brobear on Mar 20, 2017 1:29:11 GMT -5
The Beast that walks like Man by Harold McCracken. Here in Yellowstone, as elsewhere in Montana to the north, there are also more promising developments. Since 1995, there's been a new and enormously interesting scent on those first breezes that the bears inhale when they emerge. They once again, for the first time in several decades, share their domain with a sizable population of wolves, who not only make life exciting in general but also unwillingly provide the bears with a lot of free meat when bears take a fresh kill away from a wolf pack or scavenge an older kill. Life continues to change for the grizzly bears, and, as with the changes in human attitudes about them, the changes are often good.
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Post by brobear on Mar 20, 2017 1:30:44 GMT -5
www.terradaily.com/reports/Of_bears_and_berries_Return_of_wolves_aids_grizzly_bears_in_Yellowstone_999.htmlOf bears and berries: Return of wolves aids grizzly bears in Yellowstone by Staff Writers Corvallis OR (SPX) Jul 30, 2013 A new study suggests that the return of wolves to Yellowstone National Park is beginning to bring back a key part of the diet of grizzly bears that has been missing for much of the past century - berries that help bears put on fat before going into hibernation. It's one of the first reports to identify the interactions between these large, important predators, based on complex ecological processes. It was published by scientists from Oregon State University and Washington State University in the Journal of Animal Ecology. The researchers found that the level of berries consumed by Yellowstone grizzlies is significantly higher now that shrubs are starting to recover following the re-introduction of wolves, which have reduced over-browsing by elk herds. The berry bushes also produce flowers of value to pollinators like butterflies, insects and hummingbirds; food for other small and large mammals; and special benefits to birds. The report said that berries may be sufficiently important to grizzly bear diet and health that they could be considered in legal disputes - as is white pine nut availability now - about whether or not to change the "threatened" status of grizzly bears under the Endangered Species Act."Wild fruit is typically an important part of grizzly bear diet, especially in late summer when they are trying to gain weight as rapidly as possible before winter hibernation," said William Ripple, a professor in the OSU Department of Forest Ecosystems and Society, and lead author on the article."Berries are one part of a diverse food source that aids bear survival and reproduction, and at certain times of the year can be more than half their diet in many places in North America."When wolves were removed from Yellowstone early in the 1900s, increased browsing by elk herds caused the demise of young aspen and willow trees - a favorite food - along with many berry-producing shrubs and tall, herbaceous plants. The recovery of those trees and other food sources since the re-introduction of wolves in the 1990s has had a profound impact on the Yellowstone ecosystem, researchers say, even though it's still in the very early stages."Studies like this also point to the need for an ecologically effective number of wolves," said co-author Robert Beschta, an OSU professor emeritus."As we learn more about the cascading effects they have on ecosystems, the issue may be more than having just enough individual wolves so they can survive as a species. In some situations, we may wish to consider the numbers necessary to help control overbrowsing, allow tree and shrub recovery, and restore ecosystem health." As wolves help reduce elk numbers in Yellowstone and allow tree and shrub recovery, researchers said, this improves the diet and health of grizzly bears. In turn, a healthy grizzly bear population provides a second avenue of control on wild ungulates, especially on newborns in the spring time.Yellowstone has a wide variety of nutritious berries - serviceberry, chokecherry, buffaloberry, twinberry, huckleberry and others - that are highly palatable to bears. These shrubs are also eaten by elk and thus likely declined as elk populations grew over time. With the return of wolves, the new study found the percentage of fruit in grizzly bear scat in recent years almost doubled during August.Because the abundant elk have been an important food for Yellowstone grizzly bears for the past half-century, the increased supply of berries may help offset the reduced availability of elk in the bears' diet in recent years. More research is needed regarding the effects of wolves on plants and animals consumed by grizzly bears.There is precedent for high levels of ungulate herbivory causing problems for grizzly bears, who are omnivores that eat both plants and animals. Before going extinct in the American Southwest by the early 1900s, grizzly bear diets shifted toward livestock depredation, the report noted, because of lack of plant-based food caused by livestock overgrazing.And, in the absence of wolves, black bears went extinct on Anticosti Island in Canada after over-browsing of berry shrubs by introduced while-tailed deer.Increases in berry production in Yellowstone may also provide a buffer against other ecosystem shifts, the researchers noted - whitebark pine nut production, a favored bear food, may be facing pressure from climate change. Grizzly bear survival declined during years of low nut production. Livestock grazing in grizzly bear habitat adjacent to the national park, and bison herbivory in the park, likely also contribute to high foraging pressure on shrubs and forbs, the report said. In addition to eliminating wolf-livestock conflicts, retiring livestock allotments in the grizzly bear recovery zone adjacent to Yellowstone could benefit bears through increases in plant foods.
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Post by brobear on Mar 20, 2017 1:31:26 GMT -5
The Grizzly by Enos A. Mills.
An old grizzly pursued by wolves once gave me a fearful exhibition of nature. He came running across as opening in the southern end of North Park with several wolves close in pursuit. He acted as though away from home - hard pressed, bewildered, and in a strange territory. The wolves were crowding him closely as he reached the edge of the woods. With a sudden move he wheeled and struck at the one in the lead. Instantly the others were around him, snarling and snapping. The grizzly wheeled and struck quickly to right and left, striking outward and downward somewhat after the fashion of a cat striking at a near-by object. Then he turned and ran on.
A few miles farther on he again crossed an opening. Fresh wolves were now in pursuit. I saw several of the pack lying down, panting and resting. The grizzly had no rest, he was hard pressed. At one place, closely crowded, he backed up in the corner of a cliff and here put up such a fight that he drove the wolves off for the time being. He killed one and badly injured two of them. Towards evening he took refuge in a den-like place for which he evidently had been heading. The following morning a number of the wolves were gone, but the others were waiting for the grizzly in front of the den.
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Post by brobear on Mar 24, 2017 12:22:03 GMT -5
Grizzly.
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Post by brobear on Apr 24, 2017 15:31:47 GMT -5
Notorious Grizzly Bears by W.P. Hubbard - 1960 - fighting Ability. All in all, the grizzly wins most of his battles, for he is a fighter, and once riled he will attack man or beast with no consideration for the consequences to himself. After much study and observation, I am convinced that the only animal feared by the grizzly is the timber wolf, which may weigh up to 120 pounds. Reliable wolf and grizzly hunters of Alaska and Canada say that the grizzly retains his fear of wolves until he is seven or eight years old. ( In other words, a sub-adult grizzly has good reason to fear a wolf pack ).
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Post by brobear on Apr 25, 2017 4:21:38 GMT -5
Continued.... At the headwaters of Montana Creek one June, while hunting dens with a wolfer known as "Lobo" Smith, I witnessed an incident that, for my money, established the wolf as the undisputed tyrant of the Territory's ( Alaska ) wildlife. ( In my own words )... The story is longer than I care to hand-copy. It tells of a wolf pack getting the better of a she-grizzly and her two cubs. It appears to me that the author is biased towards the wolf as the makes the claim that the wolf dominates the grizzly even though in both cases given, one is of a juvenile bear and the other a she-bear with cubs. Not exactly fair examples.
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Post by Deleted on Feb 18, 2018 19:24:58 GMT -5
Credits to Good Wolf FB page. Grizzlies and Wolves.
Age old adversaries fighting to survive day to day.
They are programmed by nature’s sense of morality not ours.
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Post by brobear on Feb 18, 2018 22:29:15 GMT -5
Look at the size; small she-bear with cubs. Wolves are a terrible threat to a mother bear. She is seldom seriously injured, but can lose a cub. A full-grown grizzly boar can take a carcass from a wolf pack no matter their numbers. I've watched that on too many documentaries.
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Post by King Kodiak on Sept 2, 2018 6:08:53 GMT -5
Great info brobear. 1 vs 1, obviously a wolf is no match for a grizzly. In Yellowstone National Park, brown bears pirate wolf kills so often, Yellowstone's Wolf Project director Doug Smith wrote, "It's not a matter of if the bears will come calling after a kill, but when."
a grizzly will even try to steal the kill from a whole wolf pack, this here is the best video there is. Grizzly steals the kill from 14 wolves, they dont even try.
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Post by Deleted on Sept 2, 2018 6:10:32 GMT -5
I agree a wolf pack is no match for a hungry bear.
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Post by King Kodiak on Sept 14, 2018 17:16:47 GMT -5
This here pretty much shows what happens when a grizzly goes 1 on 1 vs a lone wolf. it also shows what grizzlies claws can do. here is proof of decapitation. This is “The Telegraph” from the UK. When a four-year old grizzly bear was put in the same five-acre enclosure as four grey wolves, each about the size of a large alsatian, at the Grouse Mountain Refuge for Endangered Wildlife in Vancouver, it was supposed to "provide wildlife with the most natural setting possible". Rather too natural for the dozen or so tourists who watched in horror when the alpha-male wolf went nose-to-nose with the bear over a cow bone. With a single swipe of its paw the 500lb bear took the wolf's head off. In the wild the two species seldom meet. The three remaining wolves are now in a separate enclosure. www.telegraph.co.uk/news/worldnews/northamerica/canada/1490932/Bear-kills-wolf-in-grizzly-attack.html
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Post by brobear on Sept 14, 2018 18:02:09 GMT -5
The four-year-old grizzly was just a sub-adult; sexually mature but far from full-grown. He will not be a full-grown bear until he is from 9 to 10 years old. Then, his paw-strike will be greatly magnified.
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Post by brobear on Sept 14, 2018 18:12:46 GMT -5
My favorite grizzly documentary was the one which showed a grizzly boar in Yellowstone that had decided to skip the usual long Winter sleep and followed a wolf pack. He walked right in among them almost as if he were an accepted member of the pack. Each time the wolves made a kill, the bear enjoyed the "lion's share". They did not fight with each other. The grizzly fed along side the wolves. Very unusual. There have also been observed a grizzly and wolf who often played together in the wild on a river bank. The two had somehow bonded and were friends. Yet another video shows a polar bear playing with some husky dogs. This is not the norm. More often a polar bear will kill the dogs if given the opportunity.
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Post by King Kodiak on Sept 15, 2018 5:46:10 GMT -5
The four-year-old grizzly was just a sub-adult; sexually mature but far from full-grown. He will not be a full-grown bear until he is from 9 to 10 years old. Then, his paw-strike will be greatly magnified. Yes sir, a subadult grizzly that decapitated a wolf with one paw swipe. Just imagine what an adult can do. Well we already know, decapitate Adult moose, And break the skulls of spanish bulls and african lions. By the way, i lost the link, but i found a book that says that grizzlies dominate wolf packs at kill sites.
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Post by brobear on Sept 15, 2018 5:58:14 GMT -5
Absolutely true. My guess is; wolves learned where they stand with a grizzly a million years ago and that memory is embedded within their D.N.A. Probably, in full force, a pack of wolves could kill a grizzly. But at what cost?
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Post by King Kodiak on Sept 15, 2018 10:25:46 GMT -5
In theory, a pack of wolves would be able to kill a grizzly, not before losing some members though. But, i havent seen any reports of a pack of wolves killing a full grown adult male grizzly, just cubs.
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Post by brobear on Sept 15, 2018 10:31:22 GMT -5
In theory, a pack of wolves would be able to kill a grizzly, not before losing some members though. But, i havent seen any reports of a pack of wolves killing a full grown adult male grizzly, just cubs. You never will see that happen.
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Post by King Kodiak on Sept 15, 2018 10:33:27 GMT -5
I agree. And i hope not, lol.
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