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: 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 (NOROCK), Ecosystems, Cooperative Research Units, Office of Science Quality and Integrity
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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.
Year Published: 2018
Factors influencing elk recruitment across ecotypes in the Western United States
Ungulates are key components in ecosystems and economically important for sport and subsistence harvest. Yet the relative importance of the effects of weather conditions, forage productivity, and carnivores on ungulates are not well understood. We examined changes in elk (Cervus canadensis) recruitment (indexed as age ratios) across 7 states and 3...
Lukacs, Paul M.; Mitchell, Michael S.; Hebblewhite, Mark; Johnson, Bruce K.; Johnson, Heather E.; Kauffman, Matthew J.; Proffitt, Kelly M.; Zager, Peter; Brodie, Jedediah; Hersey, Kent R.; Holland, A. Andrew; Hurley, Mark; McCorquodale, Scott; Middleton, Arthur; Nordhagen, Matthew; Nowak, J. Joshua; Walsh, Daniel P.; White, P.J.
Year Published: 2018
Chronic wasting disease—Status, science, and management support by the U.S. Geological Survey
The U.S. Geological Survey (USGS) investigates chronic wasting disease (CWD) at multiple science centers and cooperative research units across the Nation and supports the management of CWD through science-based strategies. CWD research conducted by USGS scientists has three strategies: (1) to understand the biology, ecology, and causes and...
Carlson, Christina M.; Hopkins, M. Camille ; Nguyen, Natalie T.; Richards, Bryan J.; Walsh, Daniel P.; Walter, W. DavidAttribution: Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America
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Carlson, C.M., Hopkins, M.C., Nguyen, N.T., Richards, B.J., Walsh, D.P., and Walter, W.D., 2018, Chronic wasting disease—Status, science, and management support by the U.S. Geological Survey: U.S. Geological Survey Open-File Report 2017–1138, 8 p., https://doi.org/10.3133/ofr20171138.
Year Published: 2018
Using expert knowledge to incorporate uncertainty in cause-of-death assignments for modeling of cause-specific mortality
Implicit and explicit use of expert knowledge to inform ecological analyses is becoming increasingly common because it often represents the sole source of information in many circumstances. Thus, there is a need to develop statistical methods that explicitly incorporate expert knowledge, and can successfully leverage this information while...
Walsh, Daniel P.; Norton, Andrew S.; Storm, Daniel J.; Van Deelen, Timothy R.; Heisy, Dennis M.Attribution: Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America
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Walsh DP, Norton AS, Storm DJ, Van Deelen TR, Heisey DM. Using expert knowledge to incorporate uncertainty in cause-of-death assignments for modeling of cause-specific mortality. Ecol Evol. 2017;8:509–520. https://doi.org/10.1002/ece3.3701
Year Published: 2018
Semi-quantitative assessment of disease risks at the human, livestock, wildlife interface for the Republic of Korea using a nationwide survey of experts: A model for other countries
Wildlife-associated diseases and pathogens have increased in importance; however, management of a large number of diseases and diversity of hosts is prohibitively expensive. Thus, the determination of priority wildlife pathogens and risk factors for disease emergence is warranted. We used an online questionnaire survey to assess release and...
Hwang, Jusun; Lee, Kyunglee; Walsh, Daniel P.; Kim, SangWha; Sleeman, Jonathan M.; Lee, HangAttribution: Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America, South Korea
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Transbound Emerg Dis. 2017 Sep 22. doi: 10.1111/tbed.12705. [Epub ahead of print]
Year Published: 2017
A dynamic spatio-temporal model for spatial data
Analyzing spatial data often requires modeling dependencies created by a dynamic spatio-temporal data generating process. In many applications, a generalized linear mixed model (GLMM) is used with a random effect to account for spatial dependence and to provide optimal spatial predictions. Location-specific covariates are often included as fixed...
Hefley, Trevor J.; Hooten, Mevin B.; Hanks, Ephraim M.; Russell, Robin; Walsh, Daniel P.
Year Published: 2017
When mechanism matters: Bayesian forecasting using models of ecological diffusion
Ecological diffusion is a theory that can be used to understand and forecast spatio-temporal processes such as dispersal, invasion, and the spread of disease. Hierarchical Bayesian modelling provides a framework to make statistical inference and probabilistic forecasts, using mechanistic ecological models. To illustrate, we show how hierarchical...
Hefley, Trevor J.; Hooten, Mevin B.; Russell, Robin E.; Walsh, Daniel P.; Powell, James A.
Year Published: 2017
The Bayesian group lasso for confounded spatial data
Generalized linear mixed models for spatial processes are widely used in applied statistics. In many applications of the spatial generalized linear mixed model (SGLMM), the goal is to obtain inference about regression coefficients while achieving optimal predictive ability. When implementing the SGLMM, multicollinearity among covariates and the...
Hefley, Trevor J.; Hooten, Mevin B.; Hanks, Ephraim M.; Russell, Robin E.; Walsh, Daniel P.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.