Over the last five winters, scientists have been trapping and fitting GPS collars to wolverines in Idaho and Wyoming while also affixing them to snowmobilers and backcountry skiers. Then they’ve tracked the movements. Preliminary findings show that wolverines move faster and more often on weekends when people are playing in their mountain habitat. That may mean trouble for these animals during the brutal winters of the high Rockies, where every calorie counts.
When we think of injuring nature, it is easy to point an accusing finger at mining companies and their strip mines or timber barons and their clear-cuts. But could something as mellow as backcountry skiing or a Thoreauvian walk in the woods cause harm, too?
More and more studies over the last 15 years have found that when we visit the great outdoors, we have much more of an effect than we realize. Even seemingly low-impact activities like hiking, cross-country skiing and bird-watching often affect wildlife, from bighorn sheep to wolves, birds, amphibians and tiny invertebrates, and in subtle ways.
Impacts from outdoor recreation and tourism are the fourth-leading reason that species are listed by the federal government as threatened or endangered, behind threats from nonnative species, urban growth and agriculture.
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I am Jeff Clark, founder of Internet Brothers, producer of this blog, and passionate about hiking. I live in Western NC near the Blue Ridge and Great Smoky Mountains. Pisgah and Nantahala National Forests are just out my door, so the content will focus on these areas, but let me know what you would like to see on the site. 
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