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Keyword: Great Basin

Climate variability affects the germination strategies exhibited by arid land plants

Publications Posted on: April 05, 2019
Spatial and temporal environmental variability can lead to variation in selection pressures across a landscape. Strategies for coping with environmental heterogeneity range from specialized phenotypic responses to a narrow range of conditions to generalist strategies that function under a range of conditions.

Seedling native species increases resistance to annual grass invasion following prescribed burning of semiarid woodlands

Publications Posted on: March 27, 2019
Exotic grass invasions are often facilitated by disturbances, which provide opportunities for invasion by releasing pulses of resources available to invaders. Where disturbances such as prescribed fire are used as a management tool, there is a pressing need to identify ecosystem attributes associated with susceptibility to disturbance-induced invasion.

Common native forbs of the northern Great Basin important for Greater Sage-grouse

Publications Posted on: December 21, 2018
This field guide is a tool for the identification of 119 common forbs found in the sagebrush rangelands and grasslands of the northern Great Basin. These forbs are important because they are either browsed directly by Greater Sage-grouse or support invertebrates that are also consumed by the birds. Species are arranged alphabetically by genus and species within families.

Population history provides foundational knowledge for utilizing and developing native plant restoration materials

Publications Posted on: December 06, 2018
A species’ population structure and history are critical pieces of information that can help guide the use of available native plant materials in restoration treatments and decide what new native plant materials should be developed to meet future restoration needs.

Shrub cover and fire history predict seed bank composition in Great Basin shrublands

Publications Posted on: August 17, 2018
Dormant seeds in the soil are an important contribution to the regenerative potential of an area. Understanding factors that affect seed bank dynamics in arid regions provides insight into how communities respond to disturbance and environmental change.

A conservation planning tool for Greater Sage-grouse using indices of species distribution, resilience, and resistance

Publications Posted on: July 10, 2018
Managers require quantitative yet tractable tools that identify areas for restoration yielding effective benefits for targeted wildlife species and the ecosystems they inhabit.

Fire patterns in piñon and juniper in the Western United States: Trends from 1984 through 2013

Science Spotlights Posted on: May 15, 2018
Changes in fire patterns for piñon and juniper vegetation in the western United States were analyzed over a 30-year period. This is the first evaluation of its type.

Advancing evaluation of resilience to disturbance and resistance to exotic annual grass invasion in the Great Basin

Projects Posted on: May 10, 2018
We will deliver a spatially explicit predictive tool depicting resilience to disturbance and resistance to cheatgrass (Bromus tectorum) invasion across the Great Basin.

Does basin wildrye (Leymus cinereus) show local adaptation when deployed according to generalized provisional seed zones in the Central Basin and Range ecoregion?

Projects Posted on: April 20, 2018
Efforts to deploy genetically appropriate plant materials build on the concept of local adaptation, that is, the intent to match adaptive genetic characteristics to variation in ecological clines pertinent to plant establishment and persistence. Here, basin wildrye (Leymus cinereus (Scribn. & Merr.) Á. Löve) sources from 25 wild populations are planted at four test sites representing the species distribution across generalized provisional seed zones in the Central Basin and Range ecoregion. The study evaluates the utility of provisional seed zones as a means of matching seed sources to restoration sites.

Factors effecting emergence of 20 Great Basin native forbs when sown at depths typical of rangeland drills

Projects Posted on: April 20, 2018
This study evaluated the effects of species, sowing depth and dormancy status, and the treatment effect of row cover on field emergence of 20 forbs native to the Great Basin. Implemented at three sites in 2013 and 2014, forb seeds were sown at four planting depths within the expected variation of the Kemmerer Rangeland or Truax Rough Rider drills.