Большинство хищников не гнушается падалью. А, так же, предпочтет нападение на слабое или больное животное, если есть такая возможность.

К тому же, росомахе вполне по силам убийства животных, которые крупнее ее самой в 10 раз (крупные копытные). Росомаха завалит любую рысь или волка аналогичных размеров.

Тут росомаха одержала вверх над большим матерым волком:
https://www.youtube.com/watch?v=AJVpztCmS4g

в рационе рыси падаль занимает 5,3% ,а у росомахи 67%

ну и что?

и когда это росомаха добыла животное в 10 раз больше себя?

Вот:

Prey mainly consists of small to medium-sized mammals, but the wolverine has been recorded killing prey such as adult deer that are many times larger than itself. Prey species include porcupines, squirrels, beavers, marmots, rabbits, voles, mice, shrews, lemmings, caribou, roe deer, white-tailed deer, mule deer, sheep, moose, and elk. Smaller predators are occasionally preyed on, including martens, mink, foxes, Eurasian lynx, weasels, and coyote and wolf pups. Wolverines have also been known to kill Canadian lynx in the Yukon of Canada.

The total number of moose individuals killed by wolverines in the four studies is

19 in the period 1967-2001 in a Siberian area (Russian study 1): about 1 moose very 2 years and a total of about 60% adults, snow depths between 80 and 160 cm

11 in the period 1956-1971 in two reserves in RussiaL Laplandski and Pechoro-Ilychasky (study 2). No information given on the sex/age of moose.

3 individuals, 2 subadults and one adult in observations in Alaska and British Columbia (study 3). The adult had 8% bone marrow fat (close to starvation). Death of subadults associated with deep snow.

7 cases in 3-4 decades mentioned in Haglund's article (study 4) as reported in Sweden. Since there are no other reports on moose killings in Sweden under any condition, this means 7 cases of moose adults killed (not of moose adults in good shape).
The total number is 40 recorded moose individuals of all ages killed by wolverines, in various parts of Russia, Siberia, Sweden, Alaska and Canada. Of these, about 16 cases are confirmed adults. The studies span a very long time and a large geographical area.

и кто кого победил?

После схватки волк отступил. У росомахи очень крепкая шкура, укус и выносливость.

Не удивительно, что в глубоком снегу, у росомахи преимущество.

The wolverine has a very low weight load on snow (22 gm/sq cm), which is much smaller than that of lynx (30-60 gm/sq cm) and wolf (over 100 gm/sq cm). This allows it to hunt/forage/move efficiently in areas where other predators have a hard time to hunt.

Вот еще интересное описание конфликта росомахи и медведя:

Krott (1958) :

"Paul had just crossed the moor, where the
delightful River Rall is no more than a little
stream, when he suddenly stopped and sniffed
again. The sweetish, attractive carrion smell
was still there, but now there was something
else as well. Another sweetish smell, but far
- 34 -
from agreeable. Paul growled, the hairs along
his spine stiffened, and his bushy tail described
angry circles. With a few bounds he went up a
slope, over debris and through a clump of
birches along the ridge. It began to rain, which
Paul didn't normally care for at all, but he was
now sufficiently interested to ignore the drizzle.
He plunged into a thick spruce wood and came
to a clearing. There lay a dead elk calf on which
a big bear was happily feeding. That bear had
earned his meal, for in his efforts to kill it he had
been kicked black and blue by the calf's mother
before she gave up the struggle. It was
something of a Pyrrhic victory; for the bear was
now so stiff and sore he could hardly move.

Paul took in the scene at a glance and circled
cautiously. So far the bear had noticed nothing.
Paul went in closer. The bear became aware of
his presence and rose on his hind legs, though
with some difficulty, for the slightest move was
painful. Paul came still closer, baring his fangs
and growling savagely. The yellow strip across
his forehead turned his face into an ugly mask.

The bear growled no less savagely, but
withdrew a few paces; as Paul came closer he
delivered a heavy blow with his great paw. Paul
sprang swiftly to one side and before the bear
could recover had leapt swiftly at his most
sensitive spot, the muzzle, and buried his sharp
claws in the bear's underlip while his teeth tore
a great gobbet out of the bear's snout.
With a howl of pain and anger the bear
staggered back. Paul was in safety up the
nearest tree in an instant. Painfully the big bear
lumbered away. For a moment he paused and
turned back, but Paul sprang down from the
tree, snarling, teeth still bared and his tail
swirling. At the fearsome sight the bear had
had enough, and he turned again and made off,
abandoning his rightful booty."

Вот еще интересно:

Отредактировано Wolf (04 April 2016 03:04:45)

почему-то о нападениях на лосей ничего не говорят Барышников, Тихонов "Млекопитающие фауны России и сопредельных территорий.Копытные.Часть 1 непарнопалые и парнопалые(свиные,кабарговые,оленевые)"
Гепнер и Слудский также ничего не сообщают,и Огнев

почему-то о нападениях на лосей ничего не говорят Барышников, Тихонов "Млекопитающие фауны России и сопредельных территорий.Копытные.Часть 1 непарнопалые и парнопалые(свиные,кабарговые,оленевые)"
Гепнер и Слудский также ничего не сообщают,и Огнев

Ты, что, тролль?

То, что я скинул - итоги с 4 научных работ:
1)Moose (Alces alces) mortality caused by wolverines in the forest zone of
Krasnoyarsk Territory, Russia

by Kozhechkin, Vladimir, Alexander Shishikin, and Igor Tumanov

2)Predator-prey problems in nature reserves of the European part of the RSFSR,
Constantin Filonov, J Wildl Manage 44(2):389-396

3)Wolverine predation on moose in North America. by A. Magun (Presented in the Wolverine Symposium)

4)Moose relation with predators in Sweden, with special reference to bear and wolverine, B Haglund, Naturaliste Can. 101:457-466 (1974)

взрослый лось  - понятие растяжимое, какого возраста были лоси? в каком состоянии,и убивала ли их росомаха?

Вот более подробные данные

первая статья :

Most of the ungulates (74% of total kills) have been killed by this predator during the period of snow abundance and the formation of a thin crust of ice on the snow, i.e., during the period of January through April; more seldom in November through December (21.0%) and in May (5.3%). During an abundant snow cover period, the main victims of this predator among the moose population (n=17) were the less protected animals: short yearlings (23.5%), both female and male 2-year-olds (17.7%), adult pregnant females (41.1%), and much more seldom adult males (17.7%).

Unlike wolves, the wolverine is mainly a solitary predator that specializes in hunting for big ungulates. Inhabiting deep snow regions, in the zone that is risky for wintering ungulates (a big plateau north of the Angara River, an eastern tributary of the Yenissey), the wolverine occupies an ecological niche where other big land predators avoid hunting.

Вот из 2 статьи. Волки побаивались охотиться, а росомаха валила:


Из 3 стати:

There are published accounts of wolverines killing moose in Scandinavia and Russia, but no cases of moose predation by wolverines have been documented for North America. We provide details and photographs of three instances of suspected moose predation by wolverines that occurred in Alaska and British Columbia.

Tracks and fresh blood in the snow as well as wounds on the moose indicated that wolverines were responsible for the death of the moose. In one instance, a wolverine was observed attacking the moose, which had blood on its head and shoulders, but the actual kill was not observed; the moose was found dead the next day and the wolverine was feeding on the head. Subsequent visits to the kill site revealed 3 different wolverines and 5 red foxes feeding on the carcass. The carcass was still being visted daily by these species 11 days after the kill, at which time approximately 30% if the carcass remained.

In at least two cases, deep snow probably contributed to the wolverines' ability to kill the moose, which were both subadults and in average winter condition based on bone marrow. One adult moose was in poor winter condition with only 8% bone marrow fat; this moose was killed by a radio-tagged, 6-yr-old female wolverine that was known to have also killed at least 3 caribou over a 4-yr period"

Из 4 статьи:

Haglund explains why such a small predator can take moose: it is fantastically adapted to walk in deep snow, soft or crusty. Its load pressure is 22 grams/sq cm, less than a fox ! and about 1/5 of the wolf's load. The wolverine can walk in soft snow depths were ANY other larger animal (antelopes) would sink. This gives it a tremendous edge (and lack of competition) to get large animals that sink or badly move in snow:

Прошу обрати внимание вот на это:

Пишут, огромный лось в хорошем состоянии!

Отредактировано Wolf (04 April 2016 03:43:42)

одна взрослая корова действительно погибла.
росомахи убивают копытных когда те вязнут в глубоком снегу,и сопротивляться не могут,пеканы также в многоснежные зимы грызут  копытных.рысь так не конечно не сможет тк она сама провалится в снег.

Отредактировано Diamir2 (04 April 2016 08:59:17)

Не вязнут, а снег мешает передвижению, и роомаха их догоняет. Рысь по снегу передвигается лишь немного хуже росомахи но намного лучше большинства копытных, особенно косуль и дзеренов.

одна взрослая корова действительно погибла.

Ты, что, читать разучился? Я тебе помимо 4ой статьи, еще 3 привел. 16 взрослых!

росомахи убивают копытных когда те вязнут в глубоком снегу

Перед тем, как писать, читай внимательно, что тебе пишут. Вот, специально для тебя выделил:

Most of the ungulates (74% of total kills) have been killed by this predator during the period of snow abundance and the formation of a thin crust of ice on the snow, i.e., during the period of January through April; more seldom in November through December (21.0%) and in May (5.3%).

история с белым медведем - фейк

Я тебе ни 1 историю с медведем привел.

Без снега росомаха догнать лося не может!

Взрослыми там считались лоси старше 2 лет

Ну и что тебе не нравится? Лоси в свои 3-4 года уже довольно крупные. К тому же мы не знаем точный возраст, но сказано, что взрослые.

было сказано что это крупная корова.

Крупная лосиха будет весить под 360 кг. Это почти в 20 раз больше веса росомахи. Заметь, что пишут дальше: "I know of seven such cases reported and verifed in Sweden"

Отредактировано Wolf (04 April 2016 14:30:32)