Fish and Wildlife

Migratory wildlife need to balance the benefits of migration and reproduction with the physiological costs. This is particularly challenging in dynamic environments like wetlands, where food levels can vary greatly from year to year. For shorebirds in the Great Basin region, saline or terminal lakes provide essential habitats during their annual life cycle. To understand how changes in hydrology...

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...

The National Environmental Policy Act (NEPA) requires federal agencies to assess potential impacts of proposed actions as part of their decision-making processes. Assessing potential cumulative effects is a challenging component of NEPA analyses. The USGS is working with the Bureau of Land Management to develop a process that public land managers can use to strengthen cumulative effects analyses.

Diseases are challenging to manage in wild ungulate populations, particularly when there are many ways the disease can spread. Wildlife management agencies often need to take action to control disease spread, but it is unclear which actions are most effective in constraining disease because the importance of different spread mechanisms is not fully understood. This project will aid state wildlife...

The Conservation Efforts Database (CED) is a secure online data repository that collects, stores, and retrieves spatially explicit, spatially obscure, and non-spatial information on species and habitat conservation and management actions. The CED is designed to allow data collection from all interested partners including federal, state, local, non-government organizations, universities, private...

The CED Gunnison Sage-grouse Recovery Module was released in 2020 and is designed to capture any effort designed to benefit Gunnison sage-grouse recovery. This includes habitat restoration and any activities that contribute to the recovery of Gunnison sage-grouse, a federally listed threatened species. While similar to the Sagebrush Module, The Gunnison Sage-Grouse Recovery module contains fields...

The CED Cutthroat Module, released in 2024, is our latest module and is designed to capture any action related to the conservation, enhancement, restoration, or recovery of native, inland cutthroat trout or the habitats and waters that they depend on. The first iteration of this module was designed specifically for the Lahontan cutthroat trout. However, we are currently working on expanding the...

In partnership with the United States Fish and Wildlife Service, and other partners, scientists from USGS Fort Collins Science Center are working to create a suite of prioritization scenarios that will inform adaptive management for Gunnison sage-grouse.

Climate change will expose many species to novel extreme environmental conditions, that may test organisms’ ability to respond to environmental change. Local adaptation, when a species evolves to be more suited for its local environment, can be an indicator of whether a species is likely to persist in the rapidly changing environment. Habitat specialists, like the greater sage-grouse, have evolved...

Widespread anthropogenic development in the sagebrush steppe and shifting drought and wildfire patterns have contributed to the observed dramatic declines of the greater sage-grouse since the 1960s. Alteration of the sagebrush habitat can affect many aspects of the species life history, including survival and local resource use. Over many years, the combined effects of landscape composition on...

The greater sage-grouse is a sagebrush-obligate species that has experienced dramatic range-wide declines since the 1960s, causing significant conservation concern. Genetic information has refined our understanding of population structure, the levels of inbreeding or relatedness, allowed the ability to monitor for change over time, and has been used to understand the outcome of management actions...

Many revegetation projects are intended to benefit focal wildlife species. Yet, few scope the ability of revegetation efforts to yield habitat. To investigate the ability of alternative sagebrush planting strategies to recover habitat conditions for wildlife like sage-grouse,  USGS and Colorado State University scientists developed a spatial vegetation-habitat recovery model. Scientists combined...