11/16/2016 05:26 EST | Updated 11/16/2016 05:29 EST

Grizzly Cubs Learn Bad Behaviour From Mother Bear: Research

EDMONTON – When it comes to bad behaviour in grizzly bears, new research blames the moms.

A University of Alberta study suggests that cubs who have watched their mothers come into conflict with people are more likely to do so as well.

Wildlife ecologist Andrea Morehouse says it's evidence of social learning in grizzlies.

"Bear biologists have long suspected that cubs learn behaviours,'' she said Wednesday.

"If we can stop female grizzlies from becoming problem bears in the first place, we can prevent the social learning of problem behaviour in cubs and help stop the cycle at its source.''

The research is published in the online science journal PLOS ONE.

grizzly mom and cub

If bad momma grizzly behaviour can be curbed, baby bears won't grow up to become bad bears, say researchers. (Photo: Harry Walker/Getty Images)

The findings are based on a study of 2,043 grizzlies in Alberta, British Columbia and Montana that was done with the United States Geological Survey.

Morehouse and her colleagues created family trees of grizzly bears using DNA samples taken over the years from captured bears or from fur collected from trees and fences bruins rubbed against.

Researchers focused on specific grizzlies that had been involved in attacks on people, livestock or pets, as well as on bears that had broken into grain bins or fed on garbage.

They found a link between mother bears and cubs when it came to problem behaviour. The link wasn't there with father bears.

"With grizzly bears, cubs stay with their moms for about two to three years,'' said Morehouse. "It is just the moms that are involved in the rearing of the offspring. Male grizzly bears are not involved in that.''

Morehouse said the findings suggest behaviour is not passed down genetically. They also point to the need for people to help prevent problem behaviour in mother grizzlies.

grizzly cubs

Sure, they look adorable, but these cubs might grow up to be unbearable. (Photo: Eastcott Momatiuk/Getty Images)

Measures researchers recommend include increased use of electric fencing, tougher handles on grain bins to make them more difficult for bears to open, quick removal of dead livestock and securing garbage in bear-proof containers.

Parks Canada says about 20,000 grizzly bears remain in British Columbia, Alberta, Yukon and the Northwest Territories.

Researchers estimate there are about 700 of the bears in Alberta, where the species is listed as threatened.

Morehouse said it is possible to condition problem bears to avoid people by scaring them using small explosives called bear bangers, shooting them with rubber bullets or confronting them with specially trained dogs.

But preventing bad bear behaviour in the first place is more effective, she said.

"The main message is we can try and prevent the behaviours that we don't want to see develop.''

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