Gregory Wann, PhD
Greg Wann is a Biologist at the Fort Collins Science Center, who works primarily on conservation issues in the sagebrush and alpine biomes of western North America.
Greg Wann is a biologist with the U.S. Geological Survey (USGS) at the Fort Collins Science Center. He works primarily on conservation issues in the sagebrush and alpine biomes of western North America. Recent research projects include identifying priority habitats promoting greater sage-grouse persistence and assessing the population viability of white-tailed ptarmigan along Colorado’s Front Range. Greg completed postdoctoral training at the University of Georgia and Western Ecological Research Center (USGS) prior to joining the Fort Collins Science Center, where he worked primarily on applied conservation issues in upland gamebird ecology and management.
Science and Products
Shrubland Alpine & Grassland Ecology (SAGE) Wildlife Research Group
The SAGE Wildlife Research Group consists of a large team of research scientists with an interest in conservation and management of wildlife and their ecosystems. Broadly, research involves understanding animal-habitat relationships, with an emphasis on conservation ecology and population demography, and a focus on shrubland, alpine, and grassland ecosystems. We are addressing the effects of...
Estimating spatial variation in greater sage-grouse lek buffers using seasonal space use models
Greater sage-grouse ( Centrocercus urophasianus ) management relies on the identification and protection of core habitat for the species. Core areas are often centered on leks where the potential impacts of anthropogenic development and other disturbances can be evaluated based on buffer distances around active leks. While buffer distances have been quantified for some regions, sage-grouse space...
Influence of future climate scenarios on habitat and population dynamics of greater sage-grouse
Sagebrush ecosystems and sagebrush-dependent wildlife species are likely to experience more frequent extreme drought and temperature conditions with changing climate. Greater sage-grouse ( Centrocercus urophasianus ), an indicator species in sagebrush ecosystems, may experience habitat and population losses that are increasingly exacerbated by current and future climate change. However, the direct...
Creating range-wide predictive maps of Greater Sage-Grouse seasonal habitats
Through a collaborative effort with multiple state and federal agencies, university researchers, and individual stakeholders, we are producing a set of predictive seasonal habitat maps for greater sage-grouse ( Centrocercus urophasianus ) spanning the entirety of the species’ U.S. distribution. This is the largest habitat modeling effort of its kind for the species and uses a large, compiled...
Understanding Population Trends for the Gunnison Sage-Grouse to Inform Adaptive Management
In partnership with the Bureau of Land Management and Colorado Parks and Wildlife, scientists from USGS Fort Collins Science Center and Western Ecological Research Center are applying a hierarchical monitoring framework to Gunnison sage-grouse ( Centrocercus minimus ) to evaluate population trends and inform adaptive management.
Informing the Habitat Assessment Framework Process—An Assessment to Understand Habitat Patch Composition and Configuration Requirements for Range-Wide Sage-Grouse Persistence
USGS scientists are developing multiple products to directly inform the Bureau of Land Management's Sage-grouse Habitat Assessment Framework process.
Science and Products
Shrubland Alpine & Grassland Ecology (SAGE) Wildlife Research Group
The SAGE Wildlife Research Group consists of a large team of research scientists with an interest in conservation and management of wildlife and their ecosystems. Broadly, research involves understanding animal-habitat relationships, with an emphasis on conservation ecology and population demography, and a focus on shrubland, alpine, and grassland ecosystems. We are addressing the effects of...
Estimating spatial variation in greater sage-grouse lek buffers using seasonal space use models
Greater sage-grouse ( Centrocercus urophasianus ) management relies on the identification and protection of core habitat for the species. Core areas are often centered on leks where the potential impacts of anthropogenic development and other disturbances can be evaluated based on buffer distances around active leks. While buffer distances have been quantified for some regions, sage-grouse space...
Influence of future climate scenarios on habitat and population dynamics of greater sage-grouse
Sagebrush ecosystems and sagebrush-dependent wildlife species are likely to experience more frequent extreme drought and temperature conditions with changing climate. Greater sage-grouse ( Centrocercus urophasianus ), an indicator species in sagebrush ecosystems, may experience habitat and population losses that are increasingly exacerbated by current and future climate change. However, the direct...
Creating range-wide predictive maps of Greater Sage-Grouse seasonal habitats
Through a collaborative effort with multiple state and federal agencies, university researchers, and individual stakeholders, we are producing a set of predictive seasonal habitat maps for greater sage-grouse ( Centrocercus urophasianus ) spanning the entirety of the species’ U.S. distribution. This is the largest habitat modeling effort of its kind for the species and uses a large, compiled...
Understanding Population Trends for the Gunnison Sage-Grouse to Inform Adaptive Management
In partnership with the Bureau of Land Management and Colorado Parks and Wildlife, scientists from USGS Fort Collins Science Center and Western Ecological Research Center are applying a hierarchical monitoring framework to Gunnison sage-grouse ( Centrocercus minimus ) to evaluate population trends and inform adaptive management.
Informing the Habitat Assessment Framework Process—An Assessment to Understand Habitat Patch Composition and Configuration Requirements for Range-Wide Sage-Grouse Persistence
USGS scientists are developing multiple products to directly inform the Bureau of Land Management's Sage-grouse Habitat Assessment Framework process.