Fish and Wildlife Disease

Environmental health is defined by connections between the physical environment, ecological health, and human health. Current research within the U.S. Geological Survey (USGS) recognizes the importance of this integrated research philosophy, which includes study of disease and pollutants as they pertain to both wildlife and humans. Due to its key geographic location and significant wildlife...

USGS is creating spatially and temporally explicit inputs to improve avian influenza transmission risk modeling. This project places special emphasis on wild bird distribution and abundance models as well as avian influenza prevalence models.

Corals reefs support marine biodiversity, protect coastlines from storm surges and strong waves, and provide income from tourism to coastal communities. Coral diseases were first recognized in the 1970s and are now considered a major threat to coral reef survival worldwide. Stony coral tissue loss disease (SCTLD) emerged in Florida in 2014, impacting coral reefs in Florida, Puerto Rico, US Virgin...

Over the past 20 years, chronic wasting disease (CWD) in Wyoming has been spreading slowly outward from the southeastern corner of the state into the Greater Yellowstone Area and Wyoming's elk feed grounds. CWD detections have been getting closer to the National Elk Refuge, which provides supplemental feeding to approximately 8,000 elk and 500 bison each winter. NOROCK scientists have been...

Chronic wasting disease (CWD) has been detected in 36 US states and five Canadian provinces in free-ranging cervids and/or commercial captive cervid facilities. CWD has been detected in free-ranging cervids in 36 states and four provinces and in captive cervid facilities in 22 states and three provinces.

Some locations on the landscape can aggregate animals of multiple species and could become hotspots of disease transmission. One example of this are areas of localized concentrations of minerals that animals like deer, elk, bighorn sheep, and mountain goats use and diseases like chronic wasting disease or respiratory diseases could spread among or within species who use natural mineral licks...

Recent outbreaks of highly pathogenic avian influenza have impacted a dramatically wider range of bird hosts than ever before. USGS researchers are working to identify which bird species have been exposed, which have developed immune responses, and how these species may influence viral ecology to inform risk management activities.

USGS researchers are using telemetry to improve our understanding of how wild birds move throughout their environments and the potential implications for disease transmission within and to domestic poultry.

This project focuses on understanding the forces driving the risk of avian influenza transmission from wild waterfowl to domestic poultry within the Chesapeake Bay region.

This project focuses on improving our understanding of how current and previous infection with avian influenza viruses impact the movement ecology of wild bird species.

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.

Understanding disease systems requires an understanding of the basic ecology of host species. USGS is involved in global efforts to explore the movements of bird species that are hosts of avian influenza as well as the potential impacts of changing landscapes on avian influenza.