Brynne E Lazarus
I am a Botanist at the USGS Forest and Rangeland Ecosystem Science Center
Science and Products
Invasives
As exotic annual grasses and the wildfires they promote become more common, the FIREss team in combats them with science-based solutions. In post-fire sagebrush steppe landscapes, invasive annual grasses grow fast and quickly fill in many of the spaces left open by perennial vegetation lost to the fire. Cheatgrass, a common invasive annual grass, is particularly problematic because it colonizes...
Post-Fire Restoration
Exotic plant invasions and increasing wildfire have greatly impacted rangelands in the American West, particularly areas that normally support perennial shrub-steppe vegetation. The FIREss team produces science to inform proactive and reactive management of sagebrush steppe with the goal of increasing resistance to invasion and resilience to wildfire. Many on the team participate in fire...
The Effect of Pre-Emergent Herbicides on Soil in The Sagebrush Steppe
We are studying how herbicides sprayed onto soil to prevent the establishment of exotic annual grasses such as cheatgrass may impact the health, growth resources and microbiota of soils in sagebrush-steppe, where herbicide use is an important and common tool. Our findings will help make herbicide applications more successful.
Longevity of Herbicides Targeting Exotic Annual Grasses in Sagebrush-Steppe Soils
Pre-emergent herbicides applied to soil are a primary tool for reducing exotic annual grasses, such as cheatgrass, in sagebrush steppe rangelands. Effective herbicide application can allow existing perennials to grow and spread to outcompete cheatgrass, preventing reinvasion, but most perennials are slow-growing and require more years of relief from annual-grass competition than standard...
FIREss: Fire, Invasives, and Rehabilitation of Shrub-Steppe Rangelands
The USGS FIREss team produces basic and applied scientific information needed to manage semiarid landscapes for resistance and resilience to wildfire, exotic plant invasions, and drought. These stressors impact ecosystem productivity and pose costly risks to health, safety, and economic wellbeing in the vast rangelands, protected areas, and military installations of the Western United States. We...
Science and Products
Invasives
As exotic annual grasses and the wildfires they promote become more common, the FIREss team in combats them with science-based solutions. In post-fire sagebrush steppe landscapes, invasive annual grasses grow fast and quickly fill in many of the spaces left open by perennial vegetation lost to the fire. Cheatgrass, a common invasive annual grass, is particularly problematic because it colonizes...
Post-Fire Restoration
Exotic plant invasions and increasing wildfire have greatly impacted rangelands in the American West, particularly areas that normally support perennial shrub-steppe vegetation. The FIREss team produces science to inform proactive and reactive management of sagebrush steppe with the goal of increasing resistance to invasion and resilience to wildfire. Many on the team participate in fire...
The Effect of Pre-Emergent Herbicides on Soil in The Sagebrush Steppe
We are studying how herbicides sprayed onto soil to prevent the establishment of exotic annual grasses such as cheatgrass may impact the health, growth resources and microbiota of soils in sagebrush-steppe, where herbicide use is an important and common tool. Our findings will help make herbicide applications more successful.
Longevity of Herbicides Targeting Exotic Annual Grasses in Sagebrush-Steppe Soils
Pre-emergent herbicides applied to soil are a primary tool for reducing exotic annual grasses, such as cheatgrass, in sagebrush steppe rangelands. Effective herbicide application can allow existing perennials to grow and spread to outcompete cheatgrass, preventing reinvasion, but most perennials are slow-growing and require more years of relief from annual-grass competition than standard...
FIREss: Fire, Invasives, and Rehabilitation of Shrub-Steppe Rangelands
The USGS FIREss team produces basic and applied scientific information needed to manage semiarid landscapes for resistance and resilience to wildfire, exotic plant invasions, and drought. These stressors impact ecosystem productivity and pose costly risks to health, safety, and economic wellbeing in the vast rangelands, protected areas, and military installations of the Western United States. We...