News of the WeekEcology

Signs of Stress Seen in Snowmobile Season

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Science  07 Jun 2002:
Vol. 296, Issue 5574, pp. 1784-1785
DOI: 10.1126/science.296.5574.1784b

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As biologists, recreationists, and policy-makers debate whether snowmobiles should be allowed in U.S. national parks, a new study of animal feces suggests that the noisy machines raise the stress hormone levels of elk and wolves. It's not clear, however, whether the glucocorticoid levels measured are detrimental to the animals