Staff from the Yellowstone Center for Resources and Resource Management & Visitor Protection Office monitored wildlife responses to motorized winter recreation during December 18, 2006 through March 29, 2007. The winter of 2006-07 was moderate in terms of snow pack and temperatures. Over-snow vehicle traffic by visitors was slightly higher than in winter 2005-06, but low in comparison to previous winters. We used snowmobiles to conduct repeated surveys of wildlife responses to motorized winter vehicles and human activities along four groomed road segments in areas of both low and high intensity human and wildlife use. Our sampling unit was the interaction between over-snow vehicles and an observed group of wildlife within 500 meters (547 yards) of the road. We focused our efforts on monitoring the responses of bison, elk, and trumpeter swans owing to the proximity and/or perceived sensitivity of these species to motorized recreation activities during winter.
Wildlife Responses to Motorized Winter Recreation in Yellowstone: 2007 Annual Report (December 18, 2006 through March 29, 2007)
2007
27 pages
Report
Keine Angabe
Englisch
Online Contents | 2007
Author Guidelines 2007 (December 4, 2006)
British Library Online Contents | 2007