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Post by Gorilla king on Aug 16, 2024 17:49:02 GMT -5
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Post by Gorilla king on Aug 17, 2024 11:47:41 GMT -5
Denning ecology of brown bears and Asiatic black bears in the Russian Far East
Abstract and Figures
We observed differences in den types, den site characteristics, and chronology of denning between radiocollared brown bears (Ursus arctos) and Asiatic black bears (U. thibetanus) on and near the Sikhote-Alin Biosphere Zapovednik in the Russian Far East during 1993-2002. Of 27 Asiatic black bear dens, 17 (63%) were in hollow trees, 6 (22%) in ground nests, 3 (11%) in caves or under rocks, and 1 (4%) was in an old excavated brown bear den. Of 12 brown bear dens, 9 were burrows excavated into hillsides, 2 under rock outcroppings, and 1 was a ground nest. We compared elevation, percent slope, aspect, and location on slope of 20 brown and 31 Asiatic black bear dens between species, sexes, and with 100 random coordinates, used to represent availability. Brown bears denned at higher elevations and on steeper slopes than Asiatic black bears and selected higher elevations and steeper slopes than were generally available. Black bears selected flat areas more often than available. Female black bears emerged from dens later than did males, and female black bears with cubs emerged later than barren females. One brown and 1 Asiatic black bear abandoned dens in response to inves- tigator disturbance. While in dens, 1 Asiatic black bear was killed by a tiger (Panthera tigris) and 2 other Asiatic black bears survived predation attempts, one by a tiger and one by a brown bear. Tree dens may be important for Asiatic black bears for protection against predators. To increase survival and repro- duction, we recommend protecting potential den trees from logging and adjusting hunting seasons and practices to reduce mortality of adult females.
Den entry and emergence dates for Asiatic black bears and brown bears on and near the Sikhote-Alin Biosphere Zapovednik, Russian Far East, 1993-2002.
www.researchgate.net/publication/242275352_Denning_ecology_of_brown_bears_and_Asiatic_black_bears_in_the_Russian_Far_East
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Post by Gorilla king on Sept 4, 2024 7:23:47 GMT -5
Great info posted by Fantasticstruggle788 at Domain of the bears:
domainofthebears.proboards.com/post/65721/thread
Some really huge Ussuri brown bears killed by hunters.
Bears of the Amur-Ussuri Region.
S.P. Kucherenko (1973). [Hunting and Game Management N°2] pp. 18-19 Among brown bears in the Amur-Ussuri region, very large individuals are still encountered. For example, in November 1958, brothers Nikolai and Viktor Fedorenko killed a brown bear weighing 470 kg without its internal organs, paws, and skin on the Lyuchikheze river (upper Iman basin). A.P. Plishankov in November 1966 killed a bear on the Lower Sinancha river (Iman basin) weighing 437 kg without its internal organs, head, and neck. In November 1962, we discovered a distinct fresh bear track with a paw print size of 36x22.5 cm on the ice of the Mukhena river. Judging by the size of the track, the bear probably weighed at least 500 kg. Tracks of bears on the Khora, Bikin, Iman, Ulakhe, and Vaka rivers were repeatedly found to be 1–2 cm shorter.
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Post by fantasticstruggle788 on Sept 20, 2024 14:07:29 GMT -5
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Post by Gorilla king on Oct 20, 2024 19:44:38 GMT -5
VSEVOLOD SYSOEV WITH KILLED BEAR:
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Post by Gorilla king on Oct 23, 2024 8:11:12 GMT -5
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Post by Gorilla king on Oct 23, 2024 8:16:12 GMT -5
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Post by oldcyansilverback on Nov 2, 2024 3:44:02 GMT -5
/\ Similar way to say that saying a bear has the agility of a monkey. An Ussuri brown bear can't jump vertically like a big cat but it is more flexible than expected.
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Post by Gorilla king on Nov 2, 2024 20:45:38 GMT -5
It's well known how fast a horse can gallop, but imagine that in the forest, a bear can catch up to it.
The bear is especially enduring on "marathon" distances. Imagine for a moment a tiger and a brown bear at the starting line, set to race over a two to three-kilometer distance. The start is given — the tiger swiftly races ahead, leaving its competitor far behind, while the bear, undaunted, continues to run after it. But after five minutes, the tiger's breathing becomes noticeably heavier, while the bear feels nothing! After a minute, the distance between them begins to shrink, and another minute later, the bear catches up with the tiger and calmly, confidently overtakes it. It’s safe to say that after five more minutes, the striped one will be completely exhausted and will slow down, while the bear will continue to run at the same steady and fast pace that it started with.
In the forest, you might see a bear chase after a wild boar. The boar dashes off, and in the blink of an eye, it's gone. But the bear, unhurriedly, continues running, sniffing the tracks. You should know: after 5–6 kilometers, it will catch up with the boar. So much for being a lumbering beast!
From Kucherenko S.P. (1988) [Predatory animals of the forest.] 165 p.
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Post by oldcyansilverback on Nov 3, 2024 0:56:49 GMT -5
Reply 62. Sometimes it is easy to wonder how Ussuri brown bears get so big.
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