Rocky Mountain National Park reduced nitrogen source apportionment

Spatial patterns of atmospheric deposition of nitrogen and sulfur using ion-exchange resin collectors in Rocky Mountain National Park, USA

Lakes and streams in Class 1 wilderness areas in the western United States (U.S.) are at risk from at­ mospheric deposition of nitrogen (N) and sulfur (S), and protection of these resources is mandated under the Federal Clean Air Act and amendments. Assessment of critical loads, which are the maximum exposure to pollution an area can receive without adverse effects on sensitive ecosystems, requ...

YMCA hiking patterns at Rocky Mountain National Park: implications for public health.

BACKGROUND There is little data on hiking patterns in national parks to support hiking behavior as a vehicle to meet the joint YMCA, CDC, and National Park Service initiatives to encourage physical activity through public land use. METHODS The YMCA of the Rockies hiking program provided data from Hike Report forms completed after 343 supervised hikes for one summer season in Rocky Mountain Na...

Using High-Resolution Future Climate Scenarios to Forecast Bromus tectorum Invasion in Rocky Mountain National Park

National Parks are hallmarks of ecosystem preservation in the United States. The introduction of alien invasive plant species threatens protection of these areas. Bromus tectorum L. (commonly called downy brome or cheatgrass), which is found in Rocky Mountain National Park (hereafter, the Park), Colorado, USA, has been implicated in early spring competition with native grasses, decreased soil n...

Plankton Population of Certain Lakes and Streams in the Rocky Mountain National Park, Colorado

Regulating overabundant ungulate populations: an example for elk in Rocky Mountain National Park, Colorado.

In many areas of the world, populations of native ungulates have become so abundant that they are believed to be harming vegetation and disrupting ecosystem function. Methods for controlling overabundance populations include culling animals from the population and controlling fertility using contraceptives. However, understanding the feasibility these alternatives requires insight into their lo...