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Biological Threats and Invasive Species Research Program

The Biological Threats Research Program delivers science to protect public safety, property, and ecosystems from invasive plants and animals and infectious fish and wildlife diseases that pose significant ecologic and economic threats to the resources of the United States.

News

Between a rock and a hard place: Experiences of the chronic wasting disease management community

Between a rock and a hard place: Experiences of the chronic wasting disease management community

Congratulations to Chris Pullano for Winning this Issue's Photo Contest!

Congratulations to Chris Pullano for Winning this Issue's Photo Contest!

Director's Message: To All of Our Partners, Thank You!

Director's Message: To All of Our Partners, Thank You!

Publications

Between a rock and a hard place: Experiences of the chronic wasting disease management community Between a rock and a hard place: Experiences of the chronic wasting disease management community

Chronic wasting disease (CWD) is a widespread and incurable cervid disease. Despite continuing investments, the logistical challenges of CWD have required wildlife managers and researchers to navigate changing priorities with conflicting public perceptions. When overcoming difficult management problems, leveraging exploratory methods may identify previously unrecognized hypotheses. In...
Authors
Patrick Roan, Brad Milley, Nicholas W. Cole

Observational, virological, and serological data provide insights into an outbreak of highly pathogenic avian influenza among wild birds on the Yukon-Kuskokwim Delta, Alaska in 2022 Observational, virological, and serological data provide insights into an outbreak of highly pathogenic avian influenza among wild birds on the Yukon-Kuskokwim Delta, Alaska in 2022

In 2021–22, clade 2.3.4.4b highly pathogenic avian influenza (HPAI) viruses were introduced by wild birds into North America, leading to geographically widespread disease. In response to HPAI outbreaks throughout late 2021 and early 2022, we recorded observations of sick and dead birds, estimated abundance of carcasses, collected swab and sera samples to detect viruses, and monitored...
Authors
Bryan Daniels, Erik E. Osnas, Megan Boldenow, Robert Gerlach, Christina Ahlstrom, Sarah Coburn, Michael J. Brook, Michael Brubaker, Julian Fischer, David N. Koons, Angela Matz, Marin Murphy, Daniel Rizzolo, Laura Celeste Scott, David R. Sinnett, Jordan M. Thompson, Juliana Lenoch, Mia Kim Torchetti, David E. Stallknecht, Rebecca L. Poulson, Andrew M. Ramey

Spatial distribution and relative biomass of bigheaded carps in Lake Balaton, Hungary estimated from an environmental DNA survey Spatial distribution and relative biomass of bigheaded carps in Lake Balaton, Hungary estimated from an environmental DNA survey

Silver carp (Hypophthalmichthys nobilis), bighead carp (H. molitrix) and their hybrids, collectively known as bigheaded carps, have been introduced to Lake Balaton, Hungary. The current stock sizes are difficult to assess. We investigated environmental DNA (eDNA) techniques targeted for bigheaded carps, assessed the spatial distribution of eDNA in Lake Balaton, compared eDNA...
Authors
Nora Boross, Ardo Laszlo, Duane C. Chapman, Gergely Boros, Zoltán Vitál, Viktor Tóth, Nathan Thompson, Katy E. Klymus, Catherine A. Richter

Science

Batrachochytrium salamandrivorans (Bsal)

Batrachochytrium salamandrivorans  ( Bsal ) is an emerging pathogen capable of causing significant morbidity and mortality in salamanders.
Batrachochytrium salamandrivorans (Bsal)

Batrachochytrium salamandrivorans (Bsal)

Batrachochytrium salamandrivorans  ( Bsal ) is an emerging pathogen capable of causing significant morbidity and mortality in salamanders.
Learn More

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.
Batrachochytrium salamandrivorans (Bsal) Surveillance

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.
Learn More

Molecular Ecology Lab (MEL)

The Molecular Ecology Laboratory applies innovative genetic and genomic technologies to address a variety of complex questions and issues facing the Nation's natural resources. While we continually update the scale and efficiency of laboratory procedures to meet stakeholder needs, we must also be innovative and flexible in addressing those needs that have no off-the-shelf solution. We help...
Molecular Ecology Lab (MEL)

Molecular Ecology Lab (MEL)

The Molecular Ecology Laboratory applies innovative genetic and genomic technologies to address a variety of complex questions and issues facing the Nation's natural resources. While we continually update the scale and efficiency of laboratory procedures to meet stakeholder needs, we must also be innovative and flexible in addressing those needs that have no off-the-shelf solution. We help...
Learn More
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