Quick Answer
Wildlife might seek shelter in tree wells due to their protection from harsh winter conditions, such as cold temperatures, strong winds, and deep snow. Tree wells provide a hidden space for animals to rest, hide from predators, and conserve energy. These microclimates can be crucial for survival during extreme weather.
Why Tree Wells Are Attractive Shelters
Tree wells are areas of low vegetation and exposed soil around the base of a tree, often created by snow accumulation. These areas can remain relatively snow-free, even in deep winter conditions, making them an attractive shelter for wildlife. In some cases, tree wells can remain 40-50% snow-free, while the surrounding area is buried under 6-8 feet of snow.
Wildlife Seeking Shelter in Tree Wells
Various species of wildlife, including deer, moose, and small mammals, seek shelter in tree wells. These animals may use tree wells as a hiding spot to escape predators, or as a spot to rest and conserve energy. Some species, such as snowshoe hares, will even den in tree wells during extreme winter conditions. When selecting a tree well for shelter, animals often look for areas with dense tree cover, south-facing slopes, and a relatively flat surface.
Techniques for Identifying Tree Wells
To identify tree wells, look for areas of exposed soil around the base of trees, often marked by a ring of bare branches or a circle of compacted snow. Tree wells can also be identified by the presence of animal tracks or scat. When searching for tree wells, consider areas with south-facing slopes, as these tend to receive more sunlight and remain warmer during winter. Keep in mind that tree wells can be hidden by snow cover, so look for areas with slightly disturbed snow or unusual animal activity.
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