Pregnant Moose Cozy Up To Traffic

Roads and motor vehicles aren’t generally thought of as beneficial to forest critters. But when it’s time for moose to give birth in the Greater Yellowstone Ecosystem, they head to where it is safest from predators – namely closer to people. At least, that’s according to a new study by the Wildlife Conservation Society.

Published in the Society’s journal Biology Letters, the study found that moose avoid grizzly bear predation of their calves by moving closer to roads and other infrastructure prior to giving birth. Society researchers tracked both moose and bears, finding that pregnant moose in Greater Yellowstone have shifted their movements each year for the past decade about 125 meters closer to roads during calving season.

“Given that brown bears avoid areas within approximately 500 meters of roads in Yellowstone and elsewhere, moose mothers have apparently buffered against predation on offspring using roadside corridors,” said Society biologist Dr. Joel Berger.

Other species that use humans as cover from predation include vervet monkeys in Kenya and axis deer in Nepal that avoid big cats by staying close to ranger stations. “The study’s results indicate that moose and other prey species find humans more benign and hence move to humans for safety whereas predators do not because we humans tend to be less kind to predators,” Berger noted.

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Source: Wildlife Conservation Society

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