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Keyword: invasive annual grasses

Using resilience and resistance concepts to manage persistent threats to sagebrush ecosystems and greater sage-grouse

Publications Posted on: March 10, 2017
Conservation of imperiled species often demands addressing a complex suite of threats that undermine species viability. Regulatory approaches, such as the US Endangered Species Act (1973), tend to focus on anthropogenic threats through adoption of policies and regulatory mechanisms.

Great Basin Factsheet Series 2016 - Information and tools to restore and conserve Great Basin ecosystems

Publications Posted on: November 17, 2016
Land managers are responsible for developing effective strategies for conserving and restoring Great Basin ecosystems in the face of invasive species, conifer expansion, and altered fire regimes. A warming climate is magnifying the effects of these threats and adding urgency to implementation of management practices that will maintain or improve ecosystem functioning.

Managing invasive annual brome grasses and altered fire regimes

Science Spotlights Posted on: August 19, 2016
Invasive annual brome grasses are resulting in altered fire regimes and conversion of native arid and semi-arid ecosystems in the western United States to annual grass dominance. The problem is particularly acute in sagebrush shrublands where cheatgrass (Bromus tectorum) has resulted in annual grass fire cycles that are placing numerous native species such as greater sage-grouse at risk and threating ecosystem services such as livestock forage, hunting and recreation, and even clean air and water. This 15-chapter book examines the environmental impacts, invasiveness, environmental controls, and management alternatives for invasive annual brome-grasses.

Resilience science - key to effective restoration of imperiled sagebrush ecosystems

Science Spotlights Posted on: October 08, 2015
Sagebrush ecosystems and the more than 350 species that rely on them are highly imperiled due to persistent threats such as invasive annual grasses, pinyon and juniper expansion, and altered fire regimes. Understanding their relative resilience or recovery potential following wildfire or management treatments provides the basis for more effective selection of treatment areas and restoration strategies.

A field guide for rapid assessment of post-wildfire recovery potential in sagebrush and pinon-juniper ecosystems in the Great Basin: Evaluating resilience to disturbance and resistance to invasive annual grasses and predicting vegetation response

Publications Posted on: August 14, 2015
This field guide provides a framework for rapidly evaluating post-fire resilience to disturbance, or recovery potential, and resistance to invasive annual grasses, and for determining the need and suitability of the burned area for seeding.

Effect of repeated burning on plant and soil carbon and nitrogen in cheatgrass (Bromus tectorum) dominated ecosystems

Publications Posted on: July 14, 2015
Fire has profound effects on ecosystem properties, but few studies have addressed the effect of repeated burns on soil nutrients, and none have been conducted in cold desert ecosystems where invasion by exotic annual grasses is resulting in greater fire frequency.

The role of resource limitation in restoration of sagebrush ecosystems dominated by cheatgrass (Bromus tectorum)

Publications Posted on: July 13, 2015
Success of invasive annual grasses is often linked to increases in resources, and restoration ecologists have suggested that decreasing nitrogen (N) availability and restoring more conservative N cycles with lower N turnover should decrease the competitive advantage of these invaders and facilitate establishment of native perennials.

Using resistance and resilience concepts to reduce impacts of invasive annual grasses and altered fire regimes on the sagebrush ecosystem and greater sage-grouse: A strategic multi-scale approach

Publications Posted on: August 27, 2014
This Report provides a strategic approach for conservation of sagebrush ecosystems and Greater Sage- Grouse (sage-grouse) that focuses specifically on habitat threats caused by invasive annual grasses and altered fire regimes.