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Dr. Susan A. Shriner

Dr. Susan A. Shriner

Dr. Susan A. Shriner, Research Biologist

Susan Shriner is a quantitative biologist, interested in risk assessment models for agricultural operations, especially in the area of understanding disease dynamics of pathogens associated with agriculture. She aslo works on models aimed at optimizing disease surveillance and control and conducts field and pen studies to support empirical parameterization of disease models.

NWRC Research ProjectNational Wildlife Disease Program

Current Research

  • Shedding dynamics of avian influenza virus in mallards
  • Cross immunity and antibody stability for avian influenza viruses
  • Role of wildlife in antimicrobial resistance associated with agricultural operations

  • Ph.D., North Carolina State University, 2001
  • M.P.A., M.S.E.S, Indiana University, 1996
  • B.S., Purdue University, 1990

International Experience:
Costa Rica

Contact Information:

  • Address: USDA/APHIS/Wildlife Services, NWRC, 4101 LaPorte Ave., Fort Collins, CO, 80521
  • Telephone: 970-266-6151
  • E-mail:



Alexander, C.R., M.J. Hooper, D. Cacela, K.D. Smelker, C.S. Calvin, K.M. Dean, S.J. Bursian, F.L. Cunningham, K.C. Hanson-Dorr, K.E. Horak, J.P. Isanhart, J. Link, S.A. Shriner, and C.A.J. Godard-Codding. 2017. Reprint of: CYP1A protein expression and catalytic activity in double-crested cormorants experimentally exposed to Deepwater Horizon Mississippi Canyon 252 oil. Ecotoxicology and Environmental Safety 146:68-75. doi: 10.1016/j.ecoenv.2017.02.049

Bursian, S.J., C.R. Alexander, D. Cacela, F.L. Cunningham, K.M. Dean, B.S. Dorr, C.K. Ellis, C.A. Godard-Codding, C.G. Guglielmo, K.C. Hanson-Dorr, K.E. Harr, K.A. Healy, M.J. Hooper, K.E. Horak, J.P. Isanhart, L.V. Kennedy, J.E. Link, I. Maggini, J.K. Moye, C.R. Perez, C.A. Pritsos, S.A. Shriner, K.A. Trust, and P.L. Tuttle. 2017. Reprint of: Overview of avian toxicity studies for the Deepwater Horizon natural resource damage assessment. Ecotoxicology and Environmental Safety 146:4-10. doi: 10.1016/j.ecoenv.2017.05.014

Chandler, J.C., J.W. Schaeffer, M. Davidson, S.L. Magzamen, A. Perez-Mendez, S.J. Reynolds, L.D. Goodridge, J. Volckens, A.B. Franklin, S.A. Shriner, and B. Bisha. 2017. A method for the improved detection of aerosolized influenza viruses and the male-specific (F+) RNA coliphage MS2.Journal of Virological Methods 246:38-41.  doi: 10.1016/j.jviromet.2017.04.004

Cunningham, F., K. Dean, K. Hanson-Dorr, K. Harr, K. Healy, K. Horak, J. Link, S. Shriner, S. Bursian, and B. Dorr. 2017. Reprint of: Development of methods for avian oil toxicity studies using the double crested cormorant (Phalacrocorax auritus). Ecotoxicology and Environmental Safety 146:19-28. doi: 10.1016/j.ecoenv.2017.03.025

Dannemiller, N.G., C.T. Webb, K.R. Wilson, K.T. Bentler, N.L. Mooers, J.W. Ellis, J.J. Root, A.B. Franklin, and S.A. Shriner. 2017. Impact of body condition on influenza A virus infection dynamics in mallards following a secondary exposure. Plos ONE 12(4): e0175757.  doi: 10.1371/journal.pone.0175757

Dean, K.M., D. Cacela, M.W. Carney, F.L. Cunningham, C. Ellis, A.R. Gerson, C.G. Guglielmo, K.C. Hanson-Dorr, K.E. Harr, K.A. Healy, K.E. Horak. J.P. Isanhart, L.V. Kennedy, J.E. Link. I. Lipton, A.K. McFadden, J.K. Moye, C.R. Perez, C.A. Pritsos, K.L. Pritsos, T. Muthumalage, S.A. Shriner, and S.J. Bursian. 2017. Testing of an oral dosing technique for double-crested cormorants, Phalacocorax auritus, laughing gulls, Leucophaeus atricilla, homing pigeons, Columba livia, and western sandpipers, Calidris mauri, with artificially weather MC252 oil. Ecotoxicology and Environmental Safety 146:11-18. doi: 10.1016/j.ecoenv.2017.07.003

Ellis, J.W., S.A. Shriner, H.E. McLean, L. Petersen, and J.J. Root. 2017. Inventory of wildlife use of mortality pits as feeding sites: implications of pathogen exposure. Human-Wildlife Interactions 11(1):8-18. doi:

Harr, K.E., D.R. Reavill, S.J. Bursian, D. Cacela, F.L. Cunningham, K.M. Dean, B.S. Dorr, K.C. Hanson-Dorr, K. Healy, K. Horak, J.E. Link, S. Shriner, and R.E. Schmidt. 2017. Organ weights and histopathology of double-crested cormorants (Phalacrocorax auritus) dosed orally or dermally with artificially weathered Mississippi Canyon 252 crude oil. Ecotoxicology and Environmental Safety 146:52-61. doi: 10.1016/j.ecoenv. 2017.07.011

Horak, K.E., S.J. Bursian, C.K. Ellis, K.M. Dean, J.E. Link, K.C. Hanson-Dorr, F.L. Cunningham, K.E. Harr, C.A. Pritsos, K.L. Pritsos, K.A. Healy, D. Cacela, and S.A. Shriner. 2017. Toxic effects of orally ingested oil from the Deepwater Horizon spill on laughing gulls. Ecotoxicology and Environmental Safety. Online. doi: 10.1016/j.ecoenv.2017.07.018

PepinK.M., S.L. Kay, B.D. Golas, S.A. Shriner, A.T. Gilbert, R.S. Miller, A.L. Graham, S. Riley, P.C. Cross, M.D. Samuel, M.B. HootenJ.A. HoetingJ.O. Lloyd-Smith, C.T. Webb, and M.G. Buhnerkempe. 2017.Inferring infection hazard in wildlife populations by linking data across individual and population scales. Ecology Letters.  doi: 10.1111/ele.12732

Pritsos, K.L., C.R. Perez, T. Muthumalage, K.M. Dean, D. Cacela, K. Hanson-Dorr, F. Cunningham, S.J. Bursian, J.E. Link, S. Shriner, K. Horak, and C.A. Pritsos. 2017. Dietary intake of Deepwater Horizon oil-injected live food fish by double-crested cormorants resulted in oxidative stress. Ecotoxicology and Environmental Safety 146:62-67. doi: 10.1016/j.ecoenv.2017.06.067

Root, J.J., S.A. Shriner, J.W. Ellis, K.K. VanDalen, and A.B. Franklin. 2017. Transmission of H6N2 wild bird-origin influenza A virus among multiple bird species in a stacked-cage setting. Archives of Virology 162(9):2617-2624. doi: 10.1007/s00705-017-3397-y


Shriner, S.A., J.J. Root, M.W. Lutman, J.M. Kloft, K.K. VanDalen, H.J. Sullivan, T.S. White, M.P. Milleson, J.L. Hairston, S.C. Chandler, P.C. Wolf, C.T. Turnage, B.J. McCluskey, A.L. Vincent, M.K. Torchetti, T. Gidlewski, and T.J.DeLiberto. 2016. Surveillance for highly pathogenic H5 avian influenza virus in synanthropic wildlife associated with poultry farms during an acute outbreak. Scientific reports 6:36237.  doi: 10.1038/srep36237   

Shriner, S.A., J.J. Root, N.L. Mooers, J.W. Ellis, S.R. Stopak, H.J. Sullivan, K.K. VanDalen, and A.B. Franklin. 2016. Susceptibility of rock doves to low-pathogenic avian influenza A viruses. Archives of Virology 161:715-720.   doi:  10.1007/s00705-015-2685-7      

Shriner, S.A., K.K. VanDalen, J.J.Root, and H.J. Sullivan. 2016. Evaluation and optimization of a commercial blocking ELISA for detecting antibodies to influenza A virus for research and surveillance of mallards. Journal of Virological Methods 226:130-134.  doi: 10.1016/jviromet.2015.11.021


Root, J.J., S.A. Shriner, J.W. Ellis, K.K. VanDalen, H.J. Sullivan, and A.B. Franklin. 2015. When fur and feather occur together: Interclass transmission of avian influenza A virus from mammals to birds through common resources. Scientific Reports 5:14354.  doi: 10.1038/srep14354

Root, J.J., S.A. Shriner, K.T. Bentler, T. Gidlewski, N.L. Mooers, J.W. Ellis, T.R. Spraker, K.K. VanDalen, H.J. Sullivan, and A.B. Franklin. 2014. Shedding of a low pathogenic Avian Influenza virus in a common synanthropic mammal - the cottontail rabbit . PLoSOne 9(8): e102513. doi: 10.1371/journal.pone.0102513.

Root, J.J., K.T. Bentler, S.A. Shriner, N.L. Mooers, K.K. VanDalen, H.J. Sullivan, and A.B. Franklin. 2014. Ecological routes of Avian Influenza virus transmission to a common mesopredator: An experimental evaluation of alternatives . PLoSONE 9(8): e102964. doi: 10.1371/journal.pone.0102964.

Pepin, K.M., E. Spackman, J.D. Brown, K.L. Pabilonia, L.P. Garber, J.T. Weaver, D.A. Kennedy, K.A. Patyk, K.P. Huyvaert, R.S. Miller, A.B. Franklin, K. Pedersen, T.L. Bogich, P. Rohani, S.A. Shriner, C.T. Webb, and S. Riley. 2014. Using quantitative disease dynamics as a tool for guiding response to avian influenza in poultry in the United States of America. Preventive Veterinary Medicine 113(4): 376-397. doi: 10.1016/j.prevetmed.2013.11.011.

Root, J.J., S.A. Shriner, K.T. Bentler, T. Gidlewski, N.L. Mooers, J.W. Ellis, T.R. Spraker, K.K. VanDalen, H.J. Sullivan, A.B. Franklin. 2014. Extended viral shedding of a low pathogenic avian influenza virus by striped skunks (Mephitis mephitis). PLoS ONE 9(1): e70639. doi: 10.1371/journal.pone.0070639.

Campbell, T.A., D.B. Long, S.A. Shriner. 2013. Wildlife contact rates at artificial feeding sites in Texas. Environmental Management 51(6): 1187-1193. doi: 10.1007/s00267-013-0046-4.

Fry, T.L., K.K. VanDalen, S.A. Shriner, S.M. Moore, C.A. Hanlon, and K.C. VerCauteren. 2013. Humoral immune response to oral rabies vaccination in raccoon kits: Problems and implications. Vaccine 31: 2811-2815. doi: 10.1016/j.vaccine.2013.04.016.

Piaggio, A.J., S.A. Shriner, K.K. VanDalen, A.B. Franklin, T.D. Anderson, and S.-O. Kolokotronis. 2012. Molecular surveillance of low pathogenic avian influenza viruses in wild birds across the United States: inferences from the hemagglutinin gene. PLoS ONE doi: 10.1371/journal.pone.0050834.

Pepin, K.M., K.K. VanDalen, N.L. Mooers, J.W. Ellis, H.J. Sullivan, J.J. Root, C.T. Webb, A.B. Franklin, and S.A. Shriner. 2012. Quantification of heterosubtypic immunity between avian influenza subtypes H3N8 and H4N6 in multiple avian host species. Journal of General Virology 93:2575-2583 doi:10.1099/vir.0.045427-0.

Shriner, S.A., K.K. VanDalen, J.J. Root, N.L. Mooers, and A.B. Franklin. 2012. Low-pathogenic avian influenza viruses in wild house mice. PLoS ONE 7(6):e39206. doi:10.1371/journal.pone.0039206

VanDalen, K.K., A.B. Franklin, N.L. Mooers, H.J. Sullivan, and S.A. Shriner. 2010. Shedding light on avian influenza H4N6 infection in mallards: modes of transmission and implications for surveillance. PLoS ONE 5(9):e12851. doi:10.1371/journal.pone.0012851

Flather, Curtis H., K.R. Wilson, and S.A. Shriner. 2009. Geographic approaches to biodiversity conservation: Implications of scale and error to landscape planning. In Millspaugh, J.J., F.R. Thompson, III, eds. Models for planning wildlife conservation in large landscapes. Burlington, MA: Elsevier Inc.: 85-121.

VanDalen, K.K., S.A. Shriner, H.J. Sullivan, J.J. Root, and A.B. Franklin. 2009. Monitoring exposure to avian influenza viruses in wild mammals. Mammal Review 39:167-177.

McLean, R.G., J.S. Hall, A.B. Franklin, H.J. Sullivan, K.K. VanDalen, S.A. Shriner, M.L. Farnsworth, and 12 others. 2007. Avian influenza in wild birds: environmental sampling strategy for the rapid detection of avian influenza viruses. In Proceedings of the 12th Wildlife Damage Management Conference, D.L. Nolte, M. Argo, and D H. Stalman, eds.

Flather, C.H., K.R. Wilson, and S.A. Shriner. 2008. Geographic approaches to biodiversity conservation: implications of scale and error to landscape planning. In In: Millspaugh, J.J.; Thompson, F.R., III, eds. Models for planning wildlife conservation in large landscapes. Burlington, MA: Elsevier Inc.: 85-121.

Alldredge, M.W., K.H. Pollock, T.R. Simons, J.A. Collazo, and S.A. Shriner. 2007. Time of detection method for estimating abundance from point count surveys. Auk 124:653-664.

Alldredge, M.W., K.H. Pollock, T.R. Simons, S.A. Shriner. 2007. Multiple species analysis of point count data: a more parsimonious modeling framework. Journal of Applied Ecology 14:281-290.

Shriner, S.A., K.R. Wilson, and C.H. Flather. 2006. Reserve networks based on richness hotspots and representation vary with scale. Ecological Applications 16:1660-1673.

Simons, T.R., S.A. Shriner and G.L. Farnsworth. 2006. A comparison of breeding bird and vegetation communities in primary and secondary eastern deciduous forests. Biological Conservation 129:302-311.

Farnsworth, G.L., J.D. Nichols, J.R. Sauer, S.G. Fancy, K.H. Pollock, S.A. Shriner, and T.R. Simons. 2005. Statistical approaches to the analysis of point count data: a little extra information can go a long way. In Bird Conservation Implementation and Integration in the Americas: Proceedings of the 3rd International Partners in Flight Workshop, Monterey, CA, March 20-24, 2002. PSRS-GTR: USDA, Forest Service, Pacific Southwest Research Station.

Lichstein, J.W., T.R. Simons, S.A. Shriner, and K. Franzreb. 2002. Spatial autocorrelation and autoregressive models in ecology. Ecological Monographs 72:445-463.

Shriner, S.A, T.R. Simons, and G.L. Farnsworth. 2002. A GIS-based habitat model for Wood Thrush in Great Smoky Mountain National Park. In Predicting Species Occurrences: Issues of Scale and Accuracy, Scott, J. M., P. J. Heglund, M. Morrison, M. Raphael, J. Haufler, B. Wall, editors. Island Press. Covello, CA.

Simons, T.R., G.L. Farnsworth, and S.A. Shriner. 2000. Evaluating Great Smoky Mountains National Park as a population source for Wood Thrush. Conservation Biology 14:1133‑1144.

Banerji, A. and S.A. Shriner. 1995. Development of phenytoin-II (monoclonal) assay for the Abbott AxSYM™ immunoassay analyzer. Clinical Chemistry 41: S121-S121 Suppl. S.




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