Alldredge, M. W., D. P. Walsh, L. L. Sweanor, R. B. Davies, A. Trujillo. 2015. Evaluation of translocation of black bears involved in human–bear conflicts in South-central Colorado. Wildlife Society Bulletin 39: 334–340. doi:10.1002/wsb.526.
Daniel Walsh
Biography
Daniel Walsh is a Quantitative Ecologist at the National Wildlife Health Center. Since joining the USGS in 2011, his research has focused on developing and applying quantitative approaches to understanding and managing wildlife disease processes. He has conducted applied research on a wide array of diseases including bighorn sheep respiratory disease, chronic wasting disease, Newcastle Disease, and Avian Influenza. He also conducts capacity building in wildlife disease management for countries throughout the world in collaboration with the World Organisation for Animal Health (OIE).
Education
- Ph. D. Fisheries and Wildlife, Michigan State University, 2007
- M. S. Statistics Michigan State University, 2007
- M. S. Fish and Wildlife Biology, Colorado State University, 2002
- B. S. Fisheries and Wildlife, Michigan State University, 1999
Professional Experience
- 2011 – Present Quantitative Ecologist, U.S. Geological Survey, National Wildlife Health Center, Madison WI
- 2007 – 2011 Disease Researcher, Colorado Division of Wildlife
- 2003 – 2007 Research Assistant-Michigan State University
- 2000 – 2002 Research Assistant-Colorado State University
Affiliations
- Honorary Fellow, Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison
- Affiliate Faculty, South Dakota State University
- Member of the Wildlife Disease Association
- Member of the Wildlife Society
- Member of the North Central Section of the Wildlife Society
- Member of Wisconsin Chapter of the Wildlife Society
Science and Products
Date published: June 1, 2019
Status: Active Chronic Wasting Disease
Chronic wasting disease (CWD) is an emerging infectious disease that is fatal to free-ranging and captive animals in Cervidae, the deer family. CWD is one member of a family of diseases called transmissible spongiform encephalopathies (TSEs), and is thought to be caused by prions. CWD is the only TSE known to affect free-ranging wildlife.
Date published: July 24, 2018
Status: Active Avian Influenza
Avian influenza is a viral disease caused by various strains of avian influenza viruses that can be classified as low pathogenic avian influenza (LPAI) or highly pathogenic avian influenza (HPAI). It remains a global disease with potential high consequence with the potential to threaten wildlife, agriculture, and human health.
Date published: May 25, 2018
Status: Active Disease Ecology and Modeling
The USGS National Wildlife Health Center (NWHC) provides quantitative support and technical assistance to state and federal wildlife managers and partners to better understand or predict the impact of disease on wildlife populations.
Contacts: Daniel Walsh, Robin E Russell
Year Published: 2021
Recovering individual-level spatial inference from aggregated binary data
Binary regression models are commonly used in disciplines such as epidemiology and ecology to determine how spatial covariates influence individuals. In many studies, binary data are shared in a spatially aggregated form to protect privacy. For example, rather than reporting the location and result for each individual that was tested for a disease...
Walker, Nelson; Hefley, Trevor J.; Ballmann, Anne; Russell, Robin E.; Walsh, Daniel P.Attribution: National Wildlife Health Center, Ecosystems
Year Published: 2021
Efficacy of fenbendazole and ivermectin against Trichuris spp. in African green monkeys (Chlorocebus sabaeus) in Barbados West Indies
Trichuris spp. are common helminths in NHP, and benzimidazoles and avermectins have both been used to treat these intestinal parasites. The current study compared the efficacy of fenbendazole and ivermectin against natural infection of Trichuris spp. in African green monkeys (Chlorocebus sabaeus). Anthelmintic-naive animals (n = 65) were randomly...
Rhynd, Kamara J. R.; Walsh, Daniel P.; Arthur-Banfield, Linnell C. M.Attribution: National Wildlife Health Center, Ecosystems
Year Published: 2021
Space matters: Host spatial structure and the dynamics of plague transmission
The development of models to elucidate the transmission pathways and dynamics of wildlife diseases remains challenging. Sylvatic plague, caused by the bacterium Yersinia pestis (Yp), is an infectious zoonotic disease that primarily affects wild rodents, including prairie dogs (Cynomys spp.) in North America. Proposed transmission...
Russell, Robin E.; Walsh, Daniel P.; Samuel, Michael D.; Grunnill, Martin S.; Rocke, Tonie E.Attribution: National Wildlife Health Center, Ecosystems
Year Published: 2020
An ecological and conservation perspective
Natural ecosystems are facing unprecedented threats which directly threaten human well-being through decreases in critical ecosystem services (IPBES 2019). The top five drivers causing the largest global impacts to biodiversity and ecosystem services include: 1) changes in land and sea use; 2) direct exploitation of organisms; 3) climate change; 4...
White, C. LeAnn; Lankton, Julia S.; Walsh, Daniel P.; Sleeman, Jonathan M.; Stephen, CraigAttribution: National Wildlife Health Center, Ecosystems
Year Published: 2020
Improving the accessibility and transferability of machine learning algorithms for identification of animals in camera trap images: MLWIC2
Motion‐activated wildlife cameras (or “camera traps”) are frequently used to remotely and noninvasively observe animals. The vast number of images collected from camera trap projects has prompted some biologists to employ machine learning algorithms to automatically recognize species in these images, or at least filter‐out images that do not...
Tabak, Michael A.; Norouzzadeh, Mohammad S.; Wolfson, David W.; Newton, Erica J.; Boughton, Raoul K.; Ivan, Jacob S.; Odell, Eric; Newkirk, Eric S.; Conrey, Reesa Y.; Stenglein, Jennifer L.; Iannarilli, Fabiola; Erb, John; Brook, Ryan K.; Davis, Amy J.; Lewis, Jesse S.; Walsh, Daniel P.; Beasley, James C; Vercauteren, Kurt C.; Clune, Jeff; Miller, Ryan S.Attribution: National Wildlife Health Center, Ecosystems
Year Published: 2020
Assessing the risks posed by SARS-CoV-2 in and via North American bats—Decision framing and rapid risk assessment
The novel β-coronavirus, SARS-CoV-2, may pose a threat to North American bat populations if bats are exposed to the virus through interaction with humans, if the virus can subsequently infect bats and be transmitted among them, and if the virus causes morbidity or mortality in bats. Further, if SARS-CoV-2 became established in bat populations, it...
Runge, Michael C.; Campbell Grant, Evan H.; Coleman, Jeremy T. H.; Reichard, Jonathan D.; Gibbs, Samantha E. J.; Cryan, Paul M.; Olival, Kevin J.; Walsh, Daniel P.; Blehert, David S.; Hopkins, M. Camille; Sleeman, Jonathan M.Attribution: National Wildlife Health Center, Patuxent Wildlife Research Center, Eastern Ecological Science Center, Ecosystems, Fish & Wildlife Disease, Region 1: North Atlantic-Appalachian
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Runge, M.C., Grant, E.H.C., Coleman, J.T.H., Reichard, J.D., Gibbs, S.E.J., Cryan, P.M., Olival, K.J., Walsh, D.P., Blehert, D.S., Hopkins, M.C., and Sleeman, J.M., 2020, Assessing the risks posed by SARS-CoV-2 in and via North American bats—Decision framing and rapid risk assessment: U.S. Geological Survey Open-File Report 2020–1060, 43 p., https://doi.org/10.3133/ofr20201060.
Year Published: 2020
Removal of chronic Mycoplasma ovipneumoniae carrier ewes eliminates pneumonia in a bighorn sheep population
Chronic pathogen carriage is one mechanism that allows diseases to persist in populations. We hypothesized that persistent or recurrent pneumonia in bighorn sheep (Ovis canadensis ) populations may be caused by chronic carriers of Mycoplasma ovipneumoniae (Mo ). Our experimental approach allowed us to address a conservation...
Garwood, Tyler; Lehman, Chadwick P.; Walsh, Daniel P.; Cassirer, E. Frances; Besser, Thomas E.; Jenks, Jonathan A.Attribution: National Wildlife Health Center, Ecosystems
Year Published: 2019
Chronic wasting disease—Research by the U.S. Geological Survey and partners
IntroductionChronic wasting disease (CWD) is the only transmissible spongiform encephalopathy, a class of invariably fatal neurodegenerative mammalian diseases associated with a misfolded cellular prion protein found in wild free-ranging animals. Because it has a long incubation period, affected animals in Cervidae (the deer family; referred to as...
Hopkins, M. Camille; Carlson, Christina M.; Cross, Paul C.; Johnson, Christopher J.; Richards, Bryan J.; Russell, Robin E.; Samuel, Michael D.; Sargeant, Glen A.; Walsh, Daniel P.; Walter, W. DavidAttribution: National Wildlife Health Center, Northern Rocky Mountain Science Center, Ecosystems, Cooperative Research Units, Fish & Wildlife Disease
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Hopkins, M.C., Carlson, C.M., Cross, P.C., Johnson, C.J., Richards, B.J., Russell, R.E., Samuel, M.D., Sargeant, G.A., Walsh, D.P., and Walter, W.D., 2019, Chronic wasting disease—Research by the U.S. Geological Survey and partners (ver. 2.0, November 2019): U.S. Geological Survey Open-File Report 2019–1109, 29 p., https://doi.org/10.3133/ofr20191109.
Year Published: 2019
Artificial intelligence and avian influenza: Using machine learning to enhance active surveillance for avian influenza viruses
Influenza A viruses are one of the most significant viral groups globally with substantial impacts on human, domestic animal and wildlife health. Wild birds are the natural reservoirs for these viruses, and active surveillance within wild bird populations provides critical information about viral evolution forming the basis of risk assessments and...
Walsh, Daniel P.; Ma, Ting Fung; Ip, Hon S.; Zhu, Jun
Year Published: 2019
Predicting the initial spread of novel Asian origin influenza A viruses in the continental USA by wild waterfowl
Using data on waterfowl band recoveries, we identified spatially explicit hotspots of concentrated waterfowl movement to predict occurrence and spatial spread of a novel influenza A virus (clade 2.3.4.4) introduced from Asia by waterfowl from an initial outbreak in North America in November 2014. In response to the outbreak, the hotspots of...
Franklin, Alan B.; Bevins, Sarah N.; Ellis, Jeremy W.; Miller, Ryan S.; Shriner, Susan A.; Root, J. Jeffrey; Walsh, Daniel P.; DeLiberto, Thomas J.
Year Published: 2018
Challenges and opportunities developing mathematical models of shared pathogens of domestic and wild animals
Diseases that affect both wild and domestic animals can be particularly difficult to prevent, predict, mitigate, and control. Such multi-host diseases can have devastating economic impacts on domestic animal producers and can present significant challenges to wildlife populations, particularly for populations of conservation concern. Few...
Huyvaert, Kathryn P.; Russell, Robin E.; Patyk, Kelly A.; Craft, Meggan E.; Cross, Paul C.; Garner, M. Graeme; Martin, Michael K.; Nol, Pauline; Walsh, Daniel P.
Year Published: 2018
Applying a Bayesian weighted surveillance approach to detect chronic wasting disease in white‐tailed deer
Surveillance is critical for early detection of emerging and re‐emerging infectious diseases. Weighted surveillance leverages heterogeneity in infection risk to increase sampling efficiency.Here, we apply a Bayesian approach to estimate weights for 16 surveillance classes of white‐tailed deer in Wisconsin, USA, relative to hunter‐harvested...
Jennelle, Christopher S.; Walsh, Daniel P.; Samuel, Michael D.; Osnas, Erik; Rolley, Robert E.; Langenberg, Julia A.; Powers, Jenny G.; Monello, Ryan J.; Demarest, E. David; Gubler, Rolf; Heisey, Dennis M.Pre-USGS Publications
Smith, J. B., D. P. Walsh, E. J. Goldstein, Z. D. Parsons, R. C. Karsch, J. R. Stiver, J. W. Cain III, K. J. Raedeke, and J. A. Jenks. 2014. Techniques for capturing bighorn sheep lambs. Wildlife Society Bulletin 38: 165–174. doi: 10.1002/wsb.360.
Davis, M. J., S. Thokala, X. Xing, N. T. Hobbs, D. P. Walsh, R. Y. Han, and S. Mishra. 2012. Developing a data-transfer model for a novel Wildlife-tracking network. Wildlife Society Bulletin 36:820–827.
Walsh, D. P., L. L. Wolfe, M. E. P. Vieira, and M. W. Miller. 2012. Detection probability and Pasteurellaceae surveillance in bighorn sheep. Journal of Wildlife Diseases 48: 593–602.
Sirochman, M. A., K. J. Woodruff, J. L. Grigg, D. P. Walsh, K. P. Huyvaert, M. W. Miller, and L. L. Wolfe. 2012. Evaluation of management treatments intended to increase lamb recruitment in a bighorn sheep herd. Journal of Wildlife Diseases 48:781–784.
Walsh, D. P., H. Campa III, D. E. Beyer Jr., and S. R. Winterstein. 2011. Measurement error and survey design in sightability model development. Journal of Wildlife Management 75: 1228–1235.
Bishop, C. J., C. R. Anderson, D. P. Walsh, E. J. Bergman, P. Kuechle, and J. Roth. 2011. Effectiveness of a redesigned vaginal implant transmitter in mule deer. Journal of Wildlife Management 75: 1797–1806.
Walter, W. D., D. P. Walsh, M. L. Farnsworth, D. L. Winkleman, and M. W. Miller. 2011. Soil clay content underlies prion infection odds. Nature Communications 2:200 doi: 10.1038/ncomms1203.
Walsh, D. P., and M. W. Miller. 2010. A weighted surveillance approach for detecting chronic wasting disease foci. Journal of Wildlife Diseases 46: 118–135.
Walsh, D. P., J. R. Stiver, G. C. White, T. E. Remington, and A. D. Apa. 2010. Population estimation techniques for lekking species. Journal of Wildlife Management 74: 1607–1613.
Griffin, K. A., D. J. Martin, L. E. Rosen, M. A. Sirochman, D. P. Walsh, L. L. Wolfe, and M. W. Miller. 2010. Detection of Yersinia pestis DNA in prairie dog-associated fleas by polymerase chain reaction assay of purified DNA. Journal of Wildlife Diseases 46: 636–643.
Martin, D. J., B. R. McMillan, J. D. Erb, T. A. Gorman, and D. P. Walsh. 2010. Diel activity patterns of river otters (Lontra canadensis) in southeastern Minnesota. Journal of Mammalogy 91: 1213–1224.
Wolfe, L. L., B. Diamond, T. R. Spraker, M. A. Sirochman, D. P. Walsh, C. M. Machin, D. J. Bade, and M. W. Miller. 2010. A bighorn sheep die-off in southern Colorado involving a Pasteurellaceae strain that may have originated from syntopic Cattle. Journal of Wildlife Diseases 46: 1262–1269.
Rosen, L. E., D. P. Walsh, L. L. Wolfe, C. L. Bedwell, and M. W. Miller. 2009. Effects of selenium supplementation and sample storage time on blood indices of selenium status in bighorn sheep. Journal of Wildlife Diseases 45: 795–801.
Walsh, D. P., C. F. Page, H. Campa III, S. R. Winterstein, and D. E. Beyer Jr. 2009. Incorporating estimates of group size in sightability models for wildlife. Journal of Wildlife Management 73: 136–143.
Population estimation and fixed kernel analyses of elk in Michigan
Walsh, D.P. 2007. Population estimation and fixed kernel analyses of elk in Michigan. Michigan State University, East Lansing, Michigan. Ph.D. Dissertation, 238pp.
Felix, A. B., D. P. Walsh, B. D. Hughey, H. Campa III, and S. R. Winterstein. 2006. Applying landscape-scale habitat-potential models to understand deer spatial structure and movement patterns. Journal of Wildlife Management 71: 804–810.
Walsh, D. P., G. C. White, T. E. Remington, and D. C. Bowden. 2004. Evaluation of the lek-count index for greater-sage grouse. Wildlife Society Bulletin 32: 56–68.
Population estimation techniques for Greater-Sage Grouse
Walsh, D. P. 2002. Population estimation techniques for Greater-Sage Grouse. Colorado State University, Fort Collins, Colorado. M.S. Thesis, 139 pp.