Masthead banner of Park Science: Integrating Research and Resource Management in the National Parks; ISSN 1090-9966; link to current issue
Volume 29
Number 2
Fall/Winter 2012-2013
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Case Studies
Published: 15 Jan 2014 (online)  •  30 Jan 2014 (in print)
Articles
 
Resource-conflict analysis: A geospatial approach to assessing energy development threats to landscapes in the Southwest
Sidebar: Data sources
Exploring the fuel efficiency of oversnow vehicles in Yellowstone National Park
  Sidebar: Need for special rule to authorize oversnow vehicle use
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Case Study
Sidebar: Need for special rule to authorize oversnow vehicle use

The necessity for a special rule to authorize oversnow vehicle use in national parks stems from Executive Orders (EO) 11644 and 11989, which together require off-road vehicle use to immediately discontinue if such use will cause “considerable adverse effects on the soil, vegetation, wildlife, wildlife habitat, or cultural or historic resources of particular areas or trails of the public lands” (snowmobiles are considered off-road vehicles by the orders), and such areas must remain closed until the agency implements measures to prevent those adverse effects. Colloquially, this is known as the “closed unless open” rule.

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Using landscape patterns, climate projections, and species distribution models to map future potential habitats for desert tortoise, Shivwits milk-vetch, and American pika in Zion National Park, Utah
New recreational water testing alternatives
Resource-conflict analysis: A geospatial approach to assessing energy development threats to landscapes in the Southwest
Sidebar: Data sources
Exploring the fuel efficiency of oversnow vehicles in Yellowstone National Park
  Sidebar: Need for special rule to authorize oversnow vehicle use
Enhancing native plant habitat in a restored salt marsh on Cape Cod, Massachusetts
Improving National Park Service partnerships: A gap analysis of external partners
A system-wide assessment of night resources and night recreation in the U.S. national parks: A case for expanded definitions
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