Fish and Wildlife Disease
Fish and Wildlife Disease
Chronic wasting disease and cervid health—2025 highlights
White-Nose Syndrome and Bat Health: 2025 Year in Review
Batrachochytrium salamandrivorans (Bsal) Surveillance
Tackling avian influenza with automated detection for an early warning system
Distribution of CWD Expanding
Chronic Wasting Disease continues to spread across North America
Chronic Wasting Disease continues to spread across North America
What is Avian Influenza (AI)?
USGS is the lead Federal agency for free-ranging wildlife disease research and surveillance. Our capabilities enhance the understanding of wildlife disease ecology and epidemiology as well as inform the development of decision-support and control tools. USGS wildlife disease experts provide technical assistance as needed to manage wildlife disease and conduct cause-of-death investigations.
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Avian Influenza Spread, Prevalence and Persistence
USGS researchers seek to understand the factors influencing the spread and persistence of avian influenza viruses on the landscape. This research also addresses how novel strains of highly pathogenic avian influenza are impacting a larger number and diversity of host species, including waterfowl, shorebirds, raptors and other birds.
Avian Influenza Dynamics in the Chesapeake Bay Region
USGS is investigating factors that influence the risk of avian influenza transmission from wild waterfowl to domestic poultry within the Chesapeake Bay region, a hub of poultry production for the United States.
Combining Field and Laboratory Studies to Understand Viral Ecology in Avian Species
USGS researchers are pairing field and laboratory studies to gain deeper insights into the role of Lesser Scaup ( Aythya affinis) in the spread and persistence of avian influenza viruses.
Avian Influenza Research at EESC
Emergence of avian influenza viruses with the potential to be highly pathogenic to poultry, wild birds, and humans cause serious concern for the global economic and public health sectors. Researchers at the USGS Eastern Ecological Science Center study multiple aspects of avian influenza viruses in wild birds as well as their implications for commercial agriculture with a special emphasis on...
USGS Sagebrush Science: Supporting Public Safety and Economic Decision Making Across the West
The sagebrush biome is one of the largest ecosystems in North America. Encompassing nearly one-third of the continental U.S., it provides critical resources for millions of Americans and a home for hundreds of plants and animal species in the West. Natural resource management in sagebrush ecosystems can be complex, and science can support management decisions by providing knowledge and tools to...
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Core Science Systems Mission Area, Ecosystems Mission Area, Biological Threats and Invasive Species Research Program, Climate Adaptation Science Centers, Cooperative Research Units, Land Management Research Program, Species Management Research Program, Earth Resources Observation and Science (EROS) Center, Forest and Rangeland Ecosystem Science Center, Fort Collins Science Center, Northern Rocky Mountain Science Center, Southwest Biological Science Center, Western Ecological Research Center (WERC), Wildland Fire Science
Batrachochytrium salamandrivorans (Bsal)
Batrachochytrium salamandrivorans ( Bsal ) is an emerging pathogen capable of causing significant morbidity and mortality in salamanders.
Batrachochytrium salamandrivorans (Bsal) Surveillance
Scientists of the USGS National Wildlife Health Center (NWHC) in collaboration with partners have developed risk assessments for Batrachochytrium salamandrivorans ( Bsal ) in the United States and are sampling high-risk locations for the fungus.
White-Nose Syndrome and Bat Health: 2025 Year in Review
USGS scientists have developed novel tools and techniques for national white-nose syndrome (WNS) detection and research efforts. Our scientists are monitoring bat populations (NABat) and bat behavior in addition to assessing the impact of WNS on bat populations. USGS is now focusing on disease management strategies to reverse bat declines from WNS.
Mapping Chronic Wasting Disease Management: Identify Opportunities for Intervention
This research effort is an interagency partnership between U.S. Geological Survey and U.S. Fish and Wildlife Service to model the social-ecological system that encompasses chronic wasting disease management in the United States. Chronic wasting disease (CWD) is a fatal, neurologically degenerative disease that impacts many cervid species in North America (e.g., elk, moose, mule deer, and white...
Harmful Algal Bloom Toxins in Alaska Seabirds
Elevated ocean temperatures are linked to the development of harmful algal blooms (HABs). Toxins from these blooms may pose health threats to marine organisms, including seabirds. Since 2015, the USGS has worked with a variety of stakeholders to develop testing methods and research projects to better understand the geographic extent, timing and impacts of algal toxins in Alaska marine ecosystems...
The Strain and Genetic Online Tissue Repository for Chronic Wasting Disease
The Strain and Genetic Online Tissue Repository (SAGOTR) is being developed by the USGS Fort Collins Science Center to document, track, discover, and request physical samples of Chronic Wasting Disease (CWD). SAGOTR connects natural resource managers, tissue repositories, and researchers in one online platform, making it easier to locate and share samples and support research and management of CWD...
North American Bat Monitoring Program (NABat)
Bats are essential contributing members of healthy, functioning ecosystems. They perform numerous ecosystem services like insect pest control and plant pollination, and provide enormous economic benefits through ecotourism, medical research, and novel biotechnologies. North American bats face unprecedented threats including habitat loss and fragmentation, white-nose syndrome, and wind energy...