s******g
发帖数: 466 | | b**g
发帖数: 2813 | | w********9
发帖数: 8613 | 3
样本太小。东北雄虎比非洲雄狮平均重两百磅。视频里的有吗？
【在 s******g 的大作中提到】
: 不要争了，虎狮争霸，狮全胜
: https://www.youtube.com/watch?v=k-Uc40dWaas
| D***3
发帖数: 12712 | | w******8
发帖数: 1078 | | w********9
发帖数: 8613 | 6
东北虎是吃棕熊(在北美又叫Grizzly)的
https://www.youtube.com/watch?v=7iGpUdmuFJE&feature=iv&src_vid=R7835zCPbCQ&
annotation_id=annotation_321649
【在 D***3 的大作中提到】
: 屁
: 灰熊一巴掌全部拍死
| D***3
发帖数: 12712 | 7 屁
都是纸面上的
来点实战
【在 w********9 的大作中提到】
:
: 东北虎是吃棕熊(在北美又叫Grizzly)的
: https://www.youtube.com/watch?v=7iGpUdmuFJE&feature=iv&src_vid=R7835zCPbCQ&
: annotation_id=annotation_321649
| w********9
发帖数: 8613 | 8
哈哈,那是假的.从开头对着镜头出场以及背景就可以看出来.
【在 D***3 的大作中提到】
: 屁
: 都是纸面上的
: 来点实战
| w********9
发帖数: 8613 | 9 老虎会突袭,而不与棕熊面对面对峙
"Interactions with tigers[edit]
Ussuri brown bears are occasionally preyed on by Siberian tigers, and
constitute about 1% of their diet (and up to 18.5% together with black bears
in very particular cases).[8][9] Siberian tigers regularly preying on young
bears but adult female Ussuri brown bears are also taken outside their dens
as well.[6][10][11] Siberian tigers most typically attack brown bears in
the winter, in the hibernaculum.[12] They are typically attacked by tigers
more often than the smaller black bears, due to their habit of living in
more open areas and their inability to climb trees. When hunting bears,
tigers will position themselves from the leeward side of a rock or fallen
tree, waiting for the bear to pass by. When the bear passes, the tiger will
spring from an overhead position and grab the bear from under the chin with
one forepaw and the throat with the other. The immobilised bear is then
killed with a bite to the spinal column. After killing a bear, the tiger
will concentrate its feeding on the bear's fat deposits, such as the back,
legs and groin.[13] Tiger attacks on bears tend to occur when ungulate
populations decrease. From 1944 to 1959, more than 32 cases of tigers
attacking bears were recorded in the Russian Far East. In the same period,
four cases of brown bears killing female and young tigers were reported,
both in disputes over prey and in self-defense.[13][14][15][16] Gepnter et
al (1972) stated bears are generally afraid of tigers and change their path
after coming across tiger trails. In the winters of 1970–1973, Yudakov and
Nikolaev recorded 1 case of brown bear showing no fear of the tigers and
another case of brown bear changing path upon crossing tiger tracks.[8][13][
17][18] Despite the possibility of tiger predation, some large brown bears
may actually benefit from the tiger's presence by appropriating tiger kills
that the bears may not be able to successfully hunt themselves and follow.[
19] During telemetry research in the Sikhote-Alin protected area, 44 direct
confrontations between the two predators were observed, in which bears were
killed in 22 cases, and tigers in 12 cases.[20]"
https://en.wikipedia.org/wiki/Ussuri_brown_bear#cite_note-Seryodkin2-8 | w********9
发帖数: 8613 | 10 Analysis has shown that 2.1% of bears diet is obtained from tiger kills,
1.4% for brown bears and 0.7% from Asiatic black bears. In 44 recorded
encounters between tigers and bears, the tiger
initiated contact in 12 cases while the bear initiated contact in 8 cases.
Of these encounters, 50% resulted in the death of the
bear, 27.3% resulted in the death of the tiger and in 22.7% of encounters
both animals survived and parted ways. Records
of tigers killing Asiatic black bears are unclear. Tigers can prey on
denning bears, and the Asiatic black bear have better
protected dens then brown bears. Bears often follow tiger tracks through
deep snow for ease of movement, to scavenge tiger
kills and to potentially prey on tigers. Tigers, brown bears and Asiatic
black bears all use the same mark and rub trees.
http://www.carnivoreconservation.org/files/meetings/iba_2011.pd |
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