Source: http://fwf.ag.utk.edu/mgray/
Timestamp: 2019-04-22 00:58:53+00:00

Document:
I received my Ph.D. in Wildlife Science and Mathematics from Texas Tech University under the primary direction of Loren M. Smith. We examined the effects of agricultural land use (i.e., grassland vs. cultivation) and landscape structure (i.e., patch juxtaposition, geometric complexity) on postmetamorphic body size and population demographics of amphibians using playa wetlands in the Southern High Plains (SHP). I also investigated with Linda J. S. Allen (Biomathematics Research Group) the presence of biological chaos in Southern High Plains amphibian populations. Ultimately, we discerned potential regulating mechanisms (i.e., density dependence, environmental stochasticity) in SHP amphibian populations via modeling with deterministic and stochastic nonlinear difference equations.
I received my M.S. in Wildlife Ecology and Statistics from Mississippi State University under the primary guidance of Richard M. Kaminski. We evaluated effects of natural and man-induced wetland management techniques in moist-soil wetlands and hardwood bottomlands via 3 experiments at Noxubee National Wildlife Refuge, Mississippi. Specifically, we tested effects of autumn mowing, disking, and tilling on aquatic invertebrate and moist-soil plant responses. We also evaluated methods to predict seed yield of wetland plants using linear models. Finally, we evaluated influences of 2 winter flood regimes (periodic vs. continuous) in hardwood bottomlands on survival of oak seedlings.
During the interim (1996-98) between my M.S. and Ph.D., I worked as a Visiting Research Scientist for the Mississippi Cooperative Fish and Wildlife Research Unit with Francisco J. Vilella. We conducted an ecological assessment, and wrote a comprehensive conservation and management plan for the Puerto Rico Department of Natural and Environmental Resources (DNER). Subsequently, we consulted the Puerto Rico DNER in the development of the first moist-soil management complex in the Caribbean on the Humacao Wildlife Refuge. I also have instructed (2002-2004) Introductory Statistics and Calculus in the Department of Mathematics and Statistics at Texas Tech University, and did a short post-doc in ecology with Drs. Nancy McIntyre and Mike Willig in the Department of Biological Sciences at Texas Tech prior to starting my position at UT-Knoxville. While in biology at Texas Tech, I taught Principles of Ecology.
Gray, M. J. and V. G. Chinchar. 2015. Introduction: History and future of ranaviruses. Pages 1 – 8 in M. J. Gray and V. G. Chinchar, editors. Ranaviruses: lethal pathogens of ectothermic vertebrates. Springer, New York.
Brunner, J. L., A. Storfer, M. J. Gray, and J. T. Hoverman. 2015. Ranavirus ecology and evolution: from epidemiology to extinction. Pages 71 – 104 in M. J. Gray and V. G. Chinchar, editors. Ranaviruses: lethal pathogens of ectothermic vertebrates. Springer, New York.
Gray, M. J., J. L. Brunner, J. E. Earl, and E. Ariel. 2015. Design and analysis of ranavirus studies: surveillance and assessing risk. Pages 209 – 240 in M. J. Gray and V. G. Chinchar, editors. Ranaviruses: lethal pathogens of ectothermic vertebrates. Springer, New York.
Gray, M. J., M. J. Chamberlain, D. A. Buehler, and W. B. Sutton. 2013. Wetland wildlife monitoring and assessment. Pages 265-318 in J. T. Anderson and C. A. Davis, editors. Wetland Techniques, Volume 2, Springer, Secaucus, New Jersey, USA.
Gray, M. J., H. A. Hagy, J. A. Nyman, and J. D. Stafford. 2013. Management of wetlands for wildlife. Pages 121-180 in J. T. Anderson and C. A. Davis, editors. Wetland Techniques, Volume 3, Springer, Secaucus, New Jersey, USA.
Nelms, K. D., M. D. Porter, and M. J. Gray. 2012. Managing impoundments for wildlife. Pages 391-420 in J. W. Neal and D. W. Willis, editors. Small impoundment management in North America. American Fisheries Society, Bethesda, Maryland, USA.
Green, D. E., M. J. Gray, and D. L. Miller. 2009. Disease monitoring and biosecurity. Pages 481-505 in: C. K. Dodd, editor. Amphibian Ecology and Conservation: A Handbook of Techniques. Oxford University Press, Oxford, UK.
Gray, M. J., J. A. Spatz, E. D. Carter, C. M. Yarber, R. P. Wilkes, and D. L. Miller. 2018. Poor biosecurity could lead to disease outbreaks in animal populations. PLoS ONE 13(3): e0193243.
Claytor, S. C., K. Subramaniam, N. Landrau-Giovannetti, V. G. Chinchar, M. J. Gray, D. L. Miller, C. Mavian, M. Salemi, S. Wisely, T. B. Waltzek. 2017. Ranavirus phylogenomics: signatures of recombination and inversions among bullfrog ranaculture isolates. Virology 511:330-343.
Gray, M. J., A. L. J. Duffus, K. H. Haman, R. N. Harris, M. C. Allender, T. A. Thompson, M. R. Christman, A. Sacerdote-Velat, L. A. Sprague, J. M. Williams, and D. L. Miller. 2017. Pathogen surveillance in herpetofaunal populations: guidance on study design, sample collection, biosecurity, and intervention strategies. Herpetological Review 48:334-351.
Duffus, A. L. J., H. M. A. Fenton, M. J. Gray, and D. L. Miller. 2017. Investigating amphibian and reptile mortalities: a practical guide for wildlife professionals. Herpetological Review 48:550-557.
Grant, E. H., E. Muths, R. A. Katz, S. Canessa, M. J. Adams, J. R. Ballard, L. Berger, C. J. Briggs, J. T. H. Coleman, M. J. Gray, et al. 2017. Using decision analysis to support proactive management of emerging infectious wildlife diseases. Frontiers in Ecology and the Environment doi:10.1002/fee.1481.
Earl, J. E., J. C. Chaney, W. B. Sutton, C. E. Lillard, A. J. Kouba, C. Langhorne, J. Krebs, R. P. Wilkes, R. D. Hill, D. L. Miller, and M. J. Gray. 2016. Ranavirus could facilitate local extinction of rare amphibian species. Oecologia DOI 10.1007/s00442-016-3682-6.
Brand, M. D., R. D. Hill, R. Brenes, J. C. Chaney, R. P. Wilkes, L. Grayfer, D. L. Miller, and M. J. Gray. 2016. Water temperature affects susceptibility to ranavirus. EcoHealth 13:350-359.
Geng, Y., M. J. Gray, K. Wang, D. Chen, P. Ouyang, X. Huang, C. He, Z. Zhong, and Z. Yang. 2016. Pathological changes in Andrias davidianus infected with Chinese giant salamander ranavirus. Asian Herpetological Research 7:258-264.
Gray, M. J., J. P. Lewis, P. Nanjappa, B. Klocke, F. Pasmans, A. Martel et al. 2015. Batrachochytrium salamandrivorans: The North American response and a call for action. PLOS Pathogens 11(12): e1005251. doi:10.1371/journal.ppat.1005251.
Blackburn, M., J. Wayland, W. H. Smith. J. H. McKenna, M. Harry, M. K. Hamed, M. J. Gray, and D. L. Miller. 2015. First report of ranavirus and Batrachochytrium dendrobatidis in green salamanders (Aneides aeneus) from Virginia, USA. Herpetological Review 46:357-361.
Sutton, W. B., M. J. Gray, R. H. Hardman, R. P. Wilkes, A. J. Kouba, and D. L. Miller. 2014. High susceptibility of the endangered dusky gopher frog to ranavirus. Diseases of Aquatic Organisms 112:9-16.
Sutton, W. B., M. J. Gray, J. T. Hoverman, R. G. Secrist, P. Super, R. H. Hardman, J. L. Tucker, and D. L. Miller. 2014. Trends in ranavirus prevalence among plethodontid salamanders in the Great Smoky Mountains National Park. EcoHealth DOI: 10.1007/s10393-014-0994-z.
Waltzek, T. B., D. L. Miller, M. J. Gray, et al. 2014. New disease records for hatchery-reared sturgeon. I. Expansion of Frog Virus 3 into Scaphirhynchus albus. Diseases of Aquatic Organisms 111:219-227.
Earl, J. E., and M. J. Gray. 2014. Introduction of ranavirus to isolated wood frog population could cause local extinction. EcoHealth DOI: 10.1007/s10393-014-0950-y.
Wheelwright, N. T., M. J. Gray, R. D. Hill, and D. L. Miller 2014. Sudden mass die-off of a large population of wood frog (Lithobates sylvaticus) tadpoles in Maine, USA, likely due to ranavirus. Herpetological Review 45:240-242.
Brenes, R., D. L. Miller, T. B. Waltzek, R. P. Wilkes, J. L. Tucker, J. C. Chaney, R. H. Hardman, M. D. Brand, R. R. Huether, and M. J. Gray. 2014. Susceptibility of fish and turtles to three ranaviruses isolated from different ectothermic vertebrate classes. Journal of Aquatic Animal Health 26:118-126.
Brenes, R, M. J. Gray, T. B. Waltzek, R. P. Wilkes, and D. L. Miller. 2014. Transmission of ranavirus between ectothermic vertebrate hosts. PLoS ONE 9(3): e92476. doi:10.1371/journal.pone.0092476.
Gold, K. K., P. D. Reed, D. A. Bemis, D. L. Miller, M. J. Gray, and M. J. Souza. 2013. Efficacy of common disinfectants and terbinafine HCl at inhibiting the growth of Batrachochytrium dendobatidis in culture. Diseases of Aquatic Organisms 107:77-81.
Gray, M. J., and D. L. Miller. 2013. Rise of ranavirus: an emerging pathogen threatens ectothermic vertebrates. Wildlife Professional 7:51-55.
Hamed, M. K, M. J. Gray, and D. L. Miller. 2013. First Report of Ranavirus in Plethodontid Salamanders from the Mount Roger’s National Recreation Area, Virginia. Herpetological Review 44:455-457.
Richter, S. C., A. N. Drayer, J. R. Strong, C. S. Kross, D. L. Miller and M. J. Gray. 2013. High prevalence of ranavirus infection in permanent constructed wetlands in eastern Kentucky, USA. Herpetological Review 44:464-466.
Haislip, N. A., J. T. Hoverman, D. L. Miller, and M. J. Gray. 2012. Natural stressors and disease risk: does the threat of predation increase amphibian susceptibility to ranavirus? Canadian Journal of Zoology 90:893-902.
Souza, M. J., M. J. Gray, P. Colclough, and D. L. Miller. 2012. Prevalence of infection by Batrachochytrium dendrobatidis and ranavirus in eastern hellbenders in eastern Tennessee. Journal of Wildlife Diseases 48:560-566.
O’Bryan, C. J., M. J. Gray, and C. S. Brooks. 2012. Further presence of ranavirus infection in amphibian populations of Tennessee, USA. Herpetological Review 43:293-295.
Gray, M. J., D. L. Miller and J. T. Hoverman. 2012. Reliability of non-lethal surveillance methods for detecting ranavirus infection. Diseases of Aquatic Organisms 99:1-6.
Hoverman, J. T., M. J. Gray, D. L. Miller and N. A Haislip. 2011. Widespread occurrence of ranavirus in pond-breeding amphibian populations. EcoHealth DOI: 10.1007/s10393-011-0731-9.
Miller, D. L., M. J. Gray, A. Storfer. 2011. Ecopathology of ranaviruses infecting amphibians. Viruses 3:2351-2373.
Lesbarrères, D., A. Balseiro, J. Brunner, V. G. Chinchar, A. Duffus, J. Kerby, D. L. Miller, J. Robert, D. M. Schock, T. Waltzek, and M. J. Gray. 2011. Ranavirus: past, present and future. Biology Letters 7: doi: 10.1098/rsbl.2011.0951.
Hoverman, J. T., M. J. Gray, N. A. Haislip, and D. L. Miller. 2011. Phylogeny, life history, and ecology contribute to differences in amphibian susceptibility to ranaviruses. EcoHealth 8:301-319.
Haislip, N.A., M. J. Gray, J. T. Hoverman, and D. L. Miller. 2011. Development and disease: how susceptibility to an emerging pathogen changes through anuran development. PLoS ONE 6(7): e22307. doi:10.1371/journal.pone.0022307.
Hoverman, J. T., M. J. Gray, and D. L. Miller. 2010. Anuran susceptibilities to ranaviruses: the role of species identity, exposure route, and a novel virus isolate. Diseases of Aquatic Organisms 89:97-107.
Miller, D. L., and M. J. Gray. 2010. Amphibian decline and mass mortality: The value of visualizing ranavirus in tissue sections. The Veterinary Journal 182:133-134.
Gray, M. J., D. L. Miller, and J. T. Hoverman. 2009. Ecology and pathology of amphibian ranaviruses. Diseases of Aquatic Organisms 87:243-266.
Gray, M. J., D. L. Miller, and J. T. Hoverman. 2009. First report of Ranavirus infecting lungless salamanders. Herpetological Review 40:316-319.
Todd-Thompson, M., D. L. Miller, P. E. Super, and M. J. Gray. 2009. Chytridiomycosis-associated mortality in a Rana palustris collected in Great Smoky Mountains National Park, Tennessee, USA. Herpetological Review 40:321-323.
Miller, D. L., M. J. Gray, S. Rajeev, A. C. Schmutzer, E. C. Burton, A. Merrill, and C. A. Baldwin. 2009. Pathologic findings in larval and juvenile anurans inhabiting farm ponds in Tennessee, U.S.A. Journal of Wildlife Diseases 45:314-324.
Bryan, L. K., C. A. Baldwin, M. J. Gray, and D. L. Miller. 2009. Efficacy of select disinfectants at inactivating Ranavirus. Diseases of Aquatic Organisms 84:89-94.
Burton, E. C., M. J. Gray, A. C. Schmutzer and D. L. Miller. 2009. Differential responses of postmetamorphic amphibians to cattle grazing in wetlands. Journal of Wildlife Management 73:269-277.
Schmutzer, A. C., M. J. Gray, E. C. Burton, and D. L. Miller. 2008. Impacts of cattle on amphibian larvae and the aquatic environment. Freshwater Biology 53:2613-2625.
Burton, E. C., D. L. Miller, E. L. Styer, and M. J. Gray. 2008. Amphibian ocular malformation associated with Frog virus 3. The Veterinary Journal 177:442-444.
Gray, M. J., D. L. Miller, A. C. Schmutzer, and C. A. Baldwin. 2007. Frog virus 3 prevalence in tadpole populations inhabiting cattle-access and non-access wetlands in Tennessee, USA. Diseases of Aquatic Organisms 77:97-103.
Gray, M. J., S. Rajeev, D. L. Miller, A. C. Schmutzer, E. C. Burton, E. D. Rogers, and G. J. Hickling. 2007. Preliminary evidence that American bullfrogs (Rana catesbeiana) are suitable hosts for Escherichia coli O157:H7. Applied and Environmental Microbiology 73:4066-4088.
Gray, M. J., L. M. Smith, D. L. Miller, and C. R. Bursey. 2007. Influences of agricultural land use on Clinostomum attenuatum metacercariae prevalence in Southern Great Plains amphibians, U.S.A. Herpetological Conservation and Biology 2:23-28.
Burton, E. C., M. J. Gray, and A. C. Schmutzer. 2007. Comparison of anuran call survey durations in Tennessee wetlands. Proceedings of the Southeastern Association of Fish and Wildlife Agencies 60:15-18.
Miller, D. L., S. Rajeev, M. J. Gray, and C. A. Baldwin. 2007. Frog virus 3 infection, cultured American bullfrogs. Emerging Infectious Diseases 13:342-343.
Gray, M. J., and L. M. Smith. 2005. Influence of land use on postmetamorphic body size of playa lake amphibians. Journal of Wildlife Management 69:515-524.
Gray, M. J., D. L. Miller, and L. M. Smith. 2005. Coelomic response and signal range of implant transmitters in Bufo cognatus. Herpetological Review 36:285-288.
Gray, M. J., L. M. Smith, and R. Brenes. 2004. Effects of agricultural cultivation on demographics of Southern High Plains amphibians. Conservation Biology 18:1368-1377.
Gray, M. J., L. M. Smith, and R. I. Leyva. 2004. Influence of agricultural landscape structure on a Southern High Plains, USA, amphibian assemblage. Landscape Ecology 19:719-729.
Smith, L. M., M. J. Gray, and A. Quarrels. 2004. Diets of newly metamorphosed amphibians in west Texas playas. Southwestern Naturalist 46:257-263.
Miller, D. L., C. R. Bursey, M. J. Gray, and L. M. Smith. 2004. Metacercaria of Clinostomum attenuatum (Digenea) in Ambystoma tigrinum mavortium, Bufo cognatus, and Spea multiplicata from west Texas. Journal of Helminthology 78:373-376.
Gonzalez, Z., D. A. Ray, L. R. McAliley, M. J. Gray, C. Perchellet, L. M. Smith, and L. D. Densmore. 2004. Five polymorphic microsatellite markers for the Great Plains toad, Bufo cognatus. Molecular Ecology Notes 4:9−10.
Osborn, J. M., H. M. Hagy, M. D. McClanahan, J. B. Davis, and M. J. Gray. 2017. Diurnal habitat selection and activities of dabbling ducks during non-breeding periods. Journal of Wildlife Management 81: DOI: 10.1002/jwmg.21324.
Osborn, J. M., H. M. Hagy, M. D. McClanahan, and M. J. Gray. 2017. Temporally-robust models for predicting seed yield of moist-soil plants. Wildlife Society Bulletin 41, DOI:10.1002/wsb.735.
Newcomb, K.C., J. B. Davis, R. M. Kaminski, and M. J. Gray. 2016. Winter survival of female American black ducks in Tennessee, USA. The Condor 118:33-45.
Williams, C. K., B. D. Dugger, M. G. Brasher, J. M. Coluccy, D. M. Cramer, J. M. Eadie, M. J. Gray, H. M. Hagy, M. Livolsi, S. R. McWilliams, M. Petrie, G. J. Soulliere, J. M. Tirpak, and E. B. Webb. 2014. Estimating habitat carrying capacity for migrating and wintering waterfowl: considerations, pitfalls and improvements. Wildfowl Special Issue 4:407-435.
Newcomb, K.C., A. P. Monroe, J. B. Davis, and M. J. Gray. 2014. Shorebird response to post-flood drawdowns on Tennessee National Wildlife Refuge. Southeastern Naturalist 13:744-761.
Foster, M. A., M. J. Gray, C. A. Harper, and R. M. Kaminski. 2011. Post-harvest fates of agricultural seeds in Tennessee croplands. Proceedings of the Southeastern Association of Fish and Wildlife Agencies 64:81-87.
Minser, W. G., M. J. Gray, J. W. Laux, and D. W. Wirwa. 2011. The value of transient mud. Wildlife Professional 5:35-37.
Foster, M. A., M. J. Gray, and R. M. Kaminski. 2010. Agricultural seed biomass for migrating and wintering waterfowl in the southeastern United States. Journal of Wildlife Management 74:489-495.
Foster, M. A., M. J. Gray, C. A. Harper, and J. G. Walls. 2010. Comparison of agricultural seed loss in flooded and unflooded fields on the Tennessee National Wildlife Refuge. Journal of Fish and Wildlife Management 1:43-46.
McCurry, J. R., M. J. Gray, and D. C. Mercker. 2010. Early growing season flooding influence on seedlings of three common bottomland hardwood species in western Tennessee. Journal of Fish and Wildlife Management 1:11-18.
McCurry, J. R., M. J. Gray, J. A. Franklin, and D. C. Mercker. 2006. Relationship of oak seedling height and diameter with bottomland elevation. Proceedings of the Southeastern Association of Fish and Wildlife Agencies 59:173-182.
Naylor, L. W., J. M. Eadie, W. D. Smith, M. Eichholz, and M. J. Gray. 2005. A simple method to predict seed yield in moist-soil habitats. Wildlife Society Bulletin 33:1335-1341.
Gray, M. J., and R. M. Kaminski. 2005. Effect of continuous vs. periodic winter flooding on bottomland hardwood seedlings in Mississippi greentree reservoirs. Pages 487–493 in L. H. Fredrickson, S. L. King, and R. M. Kaminski, editors. Ecology and management of bottomland hardwood systems: the state of our understanding. University of Missouri, Gaylord Memorial Laboratory Special Publication Number 10, Puxico, Missouri, USA.
Gray, M. J., R. M. Kaminski, G. Weerakkody, B. D. Leopold, and K. C. Jensen. 1999. Aquatic invertebrate and plant responses following mechanical manipulations of moist-soil habitat. Wildlife Society Bulletin 27:770−779.
Gray, M. J., R. M. Kaminski, and G. Weerakkody. 1999. Predicting seed yield of moist-soil plants. Journal Wildlife Management 63:1261−1268.
Gray, M. J., R. M. Kaminski, and M. G. Brasher. 1999. A new method to predict seed yield of moist-soil plants. Journal of Wildlife Management 63:1269−1272.
Gray, M. J., D. L Miller and W. B. Sutton. 2015. UTIA Center for Wildlife Health in the Smokies: Instructing Disease Surveillance Techniques. Tennessee Uncharted Episode 207 .(watch 1:30-6:00 minutes).
Gray, M. J., and E. A. Summers. 2012. Standard bioassessment procedures for evaluating ecological restoration in southeastern hardwood bottomlands. University of Tennessee Institute of Agriculture Research Report 12-04.
Gray, M. J. 2010. Managing your lands for ducks in Tennessee. Tennessee Out-of-Doors Winter 2010:4-5.
Gray, M. J., J. T. Hoverman, and D. L. Miller. 2009. Amphibian ranaviruses in the southeastern United States. Southeastern Partners in Amphibian and Reptile Conservation, Disease, Pathogens and Parasites Task Team, Information Sheet #1.
Miller, D. L., and M. J. Gray. 2009. Collecting and shipping specimens for diagnostic testing. Southeastern Partners in Amphibian and Reptile Conservation, Disease, Pathogens and Parasites Task Team, Information Sheet #9.
Miller, D. L., and M. J. Gray. 2009. Disinfection of field equipment and personal gear. Southeastern Partners in Amphibian and Reptile Conservation, Disease, Pathogens and Parasites Task Team, Information Sheet #10.
Haislip, N. A. 2009. Student research: Disease ecology of amphibian ranaviruses. Vector 3(4):2-3.
Videos on Ranaviruses: Killer Virus in the Smokies and Can Ranaviruses Cause Declines?

References: V. 
 V. 
 V. 
 V. 
 V. 
 V.