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A five-year control program created as a part of the Yukon Wolf Plan ended in 1997 that detailed the extermination of around 80% of the Yukon wolf population within southwest Yukon, specifically around the Aishihik area. This was accomplished by aerial wolf hunting and through the use of snares and traps. Numerous wolves were also surgically sterilized in the years between 1994 and 1997. After recovering the bodies of slain wolves, the pelts were removed and sold.

The program was a test on whether decreased wolf population would cause the population of caribou, moose, and Dall sheep to increase. Subsequently, it could be decided that the major limiting factor in terms of the population growth of these species is attributed to predation by the Yukon wolf. The resulting evidence showed that, while the Yukon wolf greatly affected and controlled the population of moose, the survival rate of adult caribou was not affected by the decrease in the number of wolves in the area, nor was the Dall sheep population affected at all. Thus, the study concluded that the Yukon wolf, along with hunting by humans, was one of the greatest controlling factors for the moose population and for the caribou population as a whole.

The study also concluded that, in future testing areas, lethal methods of reducing wolf populations would be minimized, as it was clearly found during the study that sterilization was far more effective in controlling the population and it also did not affect wolf behavior.

In 1994, during the study, a big game outfitter was convicted in court of attempting to convince guides in the area to place poison on the ground. Some poisoned Yukon wolves and birds were found in the Aishihik testing area and 4 of the packs in the area lowered from 38 individual members to 8 members.
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African golden wolf
African golden wolves frequently groom one another, particularly during courtship, during which it can last up to 30 minutes. Nibbling of the face and neck is observed during greeting ceremonies. When fighting, the African golden wolf slams its opponents with its hips, and bites and shakes the shoulder. The species’ postures are typically canine, and it has more facial mobility than the black-backed and side-striped jackals, being able to expose its canine teeth like a dog.

The vocabulary of the African golden wolf is similar to that of the domestic dog, with seven sounds having been recorded. The African golden wolf’s vocalizations include howls, barks, growls, whines and cackles. Subspecies can be recognised by differences in their howls. One of the most commonly heard sounds is a high, keening wail, of which there are three varieties; a long single toned continuous howl, a wail that rises and falls, and a series of short, staccato howls. These howls are used to repel intruders and attract family members. Howling in chorus is thought to reinforce family bonds, as well as establish territorial status. A comparative analysis of African golden wolf and some gray wolf subspecies’ howls demonstrated that the former’s howls bear similarities to those of the Indian wolf, being high-pitched and of relatively short duration.

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