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Keyword: Great Basin

Tree-ring reconstruction of the level of Great Salt Lake, USA

Publications Posted on: September 12, 2014
Utah's Great Salt Lake (GSL) is a closed-basin remnant of the larger Pleistocene-age Lake Bonneville. The modern instrumental record of the GSL-level (i.e. elevation) change is strongly modulated by Pacific Ocean coupled ocean/atmospheric oscillations at low frequency, and therefore reflects the decadalscale wet/dry cycles that characterize the region.

Influence of climate and environment on post-fire recovery of mountain big sagebrush

Publications Posted on: May 06, 2014
In arid and semi-arid landscapes around the world, wildfire plays a key role in maintaining species diversity. Dominant plant associations may depend upon particular fire regime characteristics for their persistence. Mountain shrub communities in high-elevation landscapes of the Intermountain West, USA, are strongly influenced by the post-fire recovery dynamics of the obligate-seeding shrub, mountain big sagebrush (Artemisia tridentata Nutt.

Equipment and strategies to enhance the post-wildfire establishment and persistence of Great Basin native plants

Publications Posted on: September 19, 2013
Annual grass invasion in the Great Basin has increased fire size, frequency and severity. Post-fire restoration to provide functional native plant communities is critical to improve resistance to weed invasion. Our ability to successfully re-establish mixtures of native grasses, forbs and shrubs, however, is limited.

Plant establishment and soil microenvironments in Utah juniper masticated woodlands

Publications Posted on: September 19, 2013
Juniper (Juniperus spp.) encroachment into sagebrush (Artemisia spp.) and bunchgrass communities has reduced understory plant cover and allowed juniper trees to dominate millions of hectares of semiarid rangelands. Trees are mechanically masticated or shredded to decrease wildfire potential and increase desirable understory plant cover.

The economics of fuel management: Wildfire, invasive plants, and the dynamics of sagebrush rangelands in the western United States

Publications Posted on: September 11, 2013
In this article we develop a simulation model to evaluate the economic efficiency of fuel treatments and apply it to two sagebrush ecosystems in the Great Basin of the western United States: the Wyoming Sagebrush Steppe and Mountain Big Sagebrush ecosystems. These ecosystems face the two most prominent concerns in sagebrush ecosystems relative to wildfire: annual grass invasion and native conifer expansion.

Science-based management of public lands in southern Nevada [Chapter 11] (Executive Summary)

Publications Posted on: September 09, 2013
Landmark legislation provides guiding principles for land management planning in southern Nevada and the rest of the United States. Such legislation includes, but is not limited to, the Forest Service Organic Administration Act of 1897 (16 U.S.C. 473-478, 479-482 and 551), National Park Service Organic Act of 1916 (U.S.C. Title 16, Secs.

Recreation use on federal lands in southern Nevada [Chapter 10] (Executive Summary)

Publications Posted on: September 09, 2013
Providing for appropriate, diverse, and high quality recreation use of southern Nevada’s lands and ensuring responsible visitor use is an ongoing challenge for Federal agencies that manage much of this land (fig. 1.1). This chapter examines recreation on these Federal lands and addresses Sub-goal 2.4 in the SNAP Science Research Strategy (table 1.1).

Preserving heritage resources through responsible use of southern Nevada’s lands [Chapter 9] (Executive Summary)

Publications Posted on: September 09, 2013
Southern Nevada’s cultural resources (heritage resources) include archeological remains, sacred sites, historic sites, and cultural landscapes of significance to Native Americans and many other cultural groups. Locating, maintaining, and protecting these special places are part of the mandate of Nevada’s Federal and state agencies.

Human interactions with the environment through time in southern Nevada [Chapter 8] (Executive Summary)

Publications Posted on: September 09, 2013
Southern Nevada is rich in irreplaceable cultural resources that include archeological remains, historic sites, cultural landscapes, and other areas of significance to Native Americans and other cultural groups.

Maintaining and restoring sustainable ecosystems in southern Nevada [Chapter 7] (Executive Summary)

Publications Posted on: September 09, 2013
Resource managers in southern Nevada are faced with the challenge of determining appropriate goals and objectives and developing viable approaches for maintaining and restoring sustainable ecosystems in the face of rapid socio-ecological and environmental change.