Table of contents:
Video: Bears cut wolf killings
2024 Author: Seth Attwood | [email protected]. Last modified: 2023-12-16 15:55
An international team of scientists has shown that Scandinavian and American wolves kill less often in the presence of brown bears. The results of the work were published in the journal Proceedings of the Royal Society B.
Gray wolves (Canis lupus) and brown bears (Ursus arctos) often occupy the same territory. At the same time, wolves are typical predators that can feed on plant food and carrion, bears are omnivorous, but in the north of the range they also tend to hunt. Previously, it was assumed that in the presence of bears, wolves tend to kill more prey in order to compensate for the activity of the former.
In the new work, scientists from the Swedish Agricultural University and other universities tested how wolves and bears that live in North America and Scandinavia interact with each other. To do this, the authors observed the number of killings of elk (Alces alces) and European roe deer (Capreolus capreolus) by wolves and the tendency to eat fell by bears in Sweden and the United States.
The results showed that wolves kill less prey in the presence of bears. In winter, when the former tend to hunt adults, there is enough food for representatives of both families. At the same time, unlike, for example, pumas (Puma concolor), wolves do not abandon their prey when the bear approaches, but wait until it is full. In summer, bears are more likely to hunt moose calves and are more competitive.
According to the authors, it is premature to disseminate data to wolves and bears in other regions. Scientists do not exclude that the detected trend is characteristic only for the indicated territories. The fact is that the hunting frequency in both families considered depends significantly on seasonality, climate, and other factors. Further research will help clarify this.
See also unique film:
Living with wolves
For centuries, wolves have been characterized as bloodthirsty beasts, enemies of ranchers and killers of helpless livestock. Determined to overcome this misunderstanding, naturalist cinematographers Jamie and Jim Dutcher spent six years in a tent camp in the wilderness of Idaho, living with a pack of wolves, listening to them and earning their trust.
The full-length popular science film reveals the deepest details of the life of wolves in a pack - its unique social composition, the maturation of wolf cubs within the group and their further maturity. Overcoming forest ridges, cold winters and the dangers of encountering a cougar, Dutchers and wolves, these highly intelligent animals, show us an example of the spiritual and unique cooperation between man and predator.
We highly recommend watching another wonderful film on this topic: "The Lord of the Wolves"
Recommended:
Fake story: China cut down Siberian forests and devastated Baikal
One of the propaganda methods is the creation of long-lived fakes, which only need to be fed from time to time with fakes that “fall under the general meaning”, but for key events - such as elections - to pull out and, shaking off the dust, exploit to the fullest
Forests of Siberia and the Far East are ruthlessly cut down for export to China
2017 has been declared the Year of the Environment in Russia. Only, it seems, not our country, but China. Such a feeling is created, looking at how, in order to please the Celestial Empire, which is restoring its forests, the taiga is being cut down in Siberia and the Far East
Evidence of ritual killings among the Jews
The Jewish woman Vicky Pauline in the popular television show regrets about sacrificing children to her god Yahweh. Oprah unknowingly or deliberately tries to divert attention, suggesting that the Jews "worship the devil"
Why women in Russia never cut their hair
For a long time, women of all ages and all classes in Russia and in the Moscow state knew one and only hairstyle - a braid. Girls decorated their braids with ribbons or braids, women - covered them with a warrior. However, the braid was not just a hairstyle
For the fact that Rus is cut by the Russian yardstick
We bring to the attention of our readers two articles sent to the competition of the Russian Scientific and Technical Society. You can read about the competition, which is dedicated to the memory of N.V. Levashov, at this address. There you can also familiarize yourself with the rest of the articles, and, if you wish, take part in it