My research focuses on evaluating effects of disturbances, such as wildfire and invasive species, and effectiveness of restoration in a variety of terrestrial and aquatic ecosystems.
I lead a team of scientists that develop tools and models to improve understanding of ecological systems and solve challenging problems in natural resource management. We primarily address questions related to wildlife habitat, species conservation, and restoration. Our research team also develops data management and decision support systems to facilitate adaptive management, especially in western rangelands. We primarily work on issues affecting the Intermountain West and Great Basin regions of the U.S.
Science and Products
Wildlife Ecology and Conservation Biology Team (FRESC)
Wildlife respond to changes in their environment, some of which are dramatic and others subtle. To fully understand the factors that drive changes in populations and communities, we need better information on wildlife ecology in natural and human-altered landscapes. We conduct research and provide technical assistance to address applied questions about the ecology and conservation of wildlife...
Filter Total Items: 23
Proof of concept airborne eDNA testing to detect invasive species in shipping containers
Shipping containers that are transported by water vessels traveling between islands and the mainland or other islands can act as a vector for invasive species that are accidentally transported with the cargo. If the vessel carries a lot of cargo, or cargo has areas for different species to hide, inspections can be difficult, time consuming, and expensive, or in the case of non-agricultural...
Fuel Break Science in the Great Basin
Researchers from the U.S. Geological Survey are developing a strategic framework for assessing and monitoring the impacts of fuel breaks in sagebrush ecosystems of the western U.S. Fuel breaks are increasingly being used to reduce the threat of wildfire, but more information on their efficacy and impacts on wildlife habitat and exotic annual grass invasion is needed.
Systematic Review and Analysis of Seeding and Herbicide Treatment in the Sagebrush Steppe
Seeding and herbicide treatments are a key aspect of the strategy used to break the annual grass-fire cycle in sagebrush steppe. However, past studies report considerable variability in the effectiveness of seeding and herbicide treatments. To generate a more consistent interpretation of post-fire herbicide and seeding effects, we are compiling, reviewing, and synthesizing findings from past...
Using Pollinator Environmental DNA to Assess the Ecological Resilience of America’s Grasslands
Scientists from six USGS science centers are collaborating with USDA, university, and Tribal partners, and Department of the Interior land managers, to assess the status of pollinator communities and the distribution of species of conservation concern using environmental DNA. These methods will be used to improve assessments of habitat quality and pollinator responses to restoration, including...
By
Species Management Research Program, Eastern Ecological Science Center, Forest and Rangeland Ecosystem Science Center, Great Lakes Science Center, Northern Prairie Wildlife Research Center, Northern Rocky Mountain Science Center, Upper Midwest Environmental Sciences Center, Pacific Northwest Environmental DNA Laboratory
Using Artificial Flowers to Survey for Pollinators
Pollinators, such as bees and butterflies, are critical for the success of agriculture and must have suitable habitat to thrive. Planting pollinator-friendly plants under and around solar panels has the potential to benefit pollinators and nearby agriculture while contributing to renewable energy production.
Dakota Skipper Surveillance, Monitoring, and Assessment
The Dakota Skipper is a small butterfly that once lived throughout the grasslands of the north-central U.S. and south-central Canada but is now listed as threatened under the Endangered Species Act.
Wildland Fire Trends Tool
The Wildland Fire Trends Tool (WFTT) is a data visualization and analysis tool that calculates and displays wildfire trends and patterns for the western U.S. based on user-defined regions of interest, time periods, and ecosystem types. Users can use the tool to easily generate a variety of maps, graphs, and tabular data products that are informative for all levels of expertise. The WFTT provides...
READI-Net: Transitioning eDNA aquatic invasive species surveillance from research to actionable science
USGS researchers are working with the Monterey Bay Aquarium Research Institute to optimize autonomous, robotic samplers for detection of DNA fragments shed by biological threats (BT; invasive species, parasites, pathogens) in our nation’s waters. Finding DNA fragments (a method known as environmental DNA sampling) produced by an emerging BT in water is akin to finding a needle in a haystack—many...
By
Ecosystems Mission Area, Biological Threats and Invasive Species Research Program, Columbia Environmental Research Center, Eastern Ecological Science Center, Forest and Rangeland Ecosystem Science Center, New York Water Science Center, Northern Rocky Mountain Science Center, Upper Midwest Environmental Sciences Center, Wetland and Aquatic Research Center , Wyoming-Montana Water Science Center, Pacific Northwest Environmental DNA Laboratory
GIS Clipping and Summarization Tool for Points, Lines, Polygons, and Rasters
Geographic Information System (GIS) analyses are an essential part of natural resource management and research. Calculating and summarizing data within intersecting GIS layers is common practice for analysts and researchers. However, the various tools and steps required to complete this process are slow and tedious, requiring many tools iterating over hundreds, or even thousands of datasets. We pr
The Wildfire Trends Tool: A data visualization and analysis tool to meet land management needs and facilitate scientific inquiry
Fighting wildfires and reducing their negative effects on natural resources costs billions of dollars annually in the U.S. We will develop the Wildfire Trends Tool (WTT), a data visualization and analysis tool that will calculate and display wildfire trends and patterns for the western U.S. based on user-defined regions of interest, time periods, and ecosystem types. The WTT will be publicly avail
Contributions to the development of the Western Association of Fish and Wildlife Agencies Sagebrush Conservation Strategy
USGS scientists are contributing to the development of the Western Association of Fish and Wildlife Agencies Sagebrush Conservation Strategy, a strategy intended to provide guidance so that efforts to conserve the iconic greater sage-grouse can be expanded to the entire sagebrush biome to benefit the people and wildlife that depend on it.
Environmental DNA (eDNA): Combining Technology and Biology to Detect Aquatic Invasive Species and Pathogens
Using DNA, USGS researchers are able to detect the presence of invasive species in aquatic ecosystems. The DNA they use is literally floating around in the environment and is called environmental DNA (eDNA) and is a powerful tool for the early detection of invasive species and pathogens, which can cause serious ecological and economic damage. USGS researchers are also combining the use of eDNA...
Science and Products
- Science
Wildlife Ecology and Conservation Biology Team (FRESC)
Wildlife respond to changes in their environment, some of which are dramatic and others subtle. To fully understand the factors that drive changes in populations and communities, we need better information on wildlife ecology in natural and human-altered landscapes. We conduct research and provide technical assistance to address applied questions about the ecology and conservation of wildlife...Filter Total Items: 23Proof of concept airborne eDNA testing to detect invasive species in shipping containers
Shipping containers that are transported by water vessels traveling between islands and the mainland or other islands can act as a vector for invasive species that are accidentally transported with the cargo. If the vessel carries a lot of cargo, or cargo has areas for different species to hide, inspections can be difficult, time consuming, and expensive, or in the case of non-agricultural...Fuel Break Science in the Great Basin
Researchers from the U.S. Geological Survey are developing a strategic framework for assessing and monitoring the impacts of fuel breaks in sagebrush ecosystems of the western U.S. Fuel breaks are increasingly being used to reduce the threat of wildfire, but more information on their efficacy and impacts on wildlife habitat and exotic annual grass invasion is needed.Systematic Review and Analysis of Seeding and Herbicide Treatment in the Sagebrush Steppe
Seeding and herbicide treatments are a key aspect of the strategy used to break the annual grass-fire cycle in sagebrush steppe. However, past studies report considerable variability in the effectiveness of seeding and herbicide treatments. To generate a more consistent interpretation of post-fire herbicide and seeding effects, we are compiling, reviewing, and synthesizing findings from past...Using Pollinator Environmental DNA to Assess the Ecological Resilience of America’s Grasslands
Scientists from six USGS science centers are collaborating with USDA, university, and Tribal partners, and Department of the Interior land managers, to assess the status of pollinator communities and the distribution of species of conservation concern using environmental DNA. These methods will be used to improve assessments of habitat quality and pollinator responses to restoration, including...BySpecies Management Research Program, Eastern Ecological Science Center, Forest and Rangeland Ecosystem Science Center, Great Lakes Science Center, Northern Prairie Wildlife Research Center, Northern Rocky Mountain Science Center, Upper Midwest Environmental Sciences Center, Pacific Northwest Environmental DNA LaboratoryUsing Artificial Flowers to Survey for Pollinators
Pollinators, such as bees and butterflies, are critical for the success of agriculture and must have suitable habitat to thrive. Planting pollinator-friendly plants under and around solar panels has the potential to benefit pollinators and nearby agriculture while contributing to renewable energy production.Dakota Skipper Surveillance, Monitoring, and Assessment
The Dakota Skipper is a small butterfly that once lived throughout the grasslands of the north-central U.S. and south-central Canada but is now listed as threatened under the Endangered Species Act.Wildland Fire Trends Tool
The Wildland Fire Trends Tool (WFTT) is a data visualization and analysis tool that calculates and displays wildfire trends and patterns for the western U.S. based on user-defined regions of interest, time periods, and ecosystem types. Users can use the tool to easily generate a variety of maps, graphs, and tabular data products that are informative for all levels of expertise. The WFTT provides...READI-Net: Transitioning eDNA aquatic invasive species surveillance from research to actionable science
USGS researchers are working with the Monterey Bay Aquarium Research Institute to optimize autonomous, robotic samplers for detection of DNA fragments shed by biological threats (BT; invasive species, parasites, pathogens) in our nation’s waters. Finding DNA fragments (a method known as environmental DNA sampling) produced by an emerging BT in water is akin to finding a needle in a haystack—many...ByEcosystems Mission Area, Biological Threats and Invasive Species Research Program, Columbia Environmental Research Center, Eastern Ecological Science Center, Forest and Rangeland Ecosystem Science Center, New York Water Science Center, Northern Rocky Mountain Science Center, Upper Midwest Environmental Sciences Center, Wetland and Aquatic Research Center , Wyoming-Montana Water Science Center, Pacific Northwest Environmental DNA LaboratoryGIS Clipping and Summarization Tool for Points, Lines, Polygons, and Rasters
Geographic Information System (GIS) analyses are an essential part of natural resource management and research. Calculating and summarizing data within intersecting GIS layers is common practice for analysts and researchers. However, the various tools and steps required to complete this process are slow and tedious, requiring many tools iterating over hundreds, or even thousands of datasets. We prThe Wildfire Trends Tool: A data visualization and analysis tool to meet land management needs and facilitate scientific inquiry
Fighting wildfires and reducing their negative effects on natural resources costs billions of dollars annually in the U.S. We will develop the Wildfire Trends Tool (WTT), a data visualization and analysis tool that will calculate and display wildfire trends and patterns for the western U.S. based on user-defined regions of interest, time periods, and ecosystem types. The WTT will be publicly availContributions to the development of the Western Association of Fish and Wildlife Agencies Sagebrush Conservation Strategy
USGS scientists are contributing to the development of the Western Association of Fish and Wildlife Agencies Sagebrush Conservation Strategy, a strategy intended to provide guidance so that efforts to conserve the iconic greater sage-grouse can be expanded to the entire sagebrush biome to benefit the people and wildlife that depend on it.Environmental DNA (eDNA): Combining Technology and Biology to Detect Aquatic Invasive Species and Pathogens
Using DNA, USGS researchers are able to detect the presence of invasive species in aquatic ecosystems. The DNA they use is literally floating around in the environment and is called environmental DNA (eDNA) and is a powerful tool for the early detection of invasive species and pathogens, which can cause serious ecological and economic damage. USGS researchers are also combining the use of eDNA... - Data
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