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Johnson, Tammi

Tammi Johnson

Associate Professor
Office:  
Texas A&M AgriLife Research and Extension Center at Uvalde, TX
Email:  
[email protected]
Phone:  
(830) 988-6142
Tammi Johnson's Website

Education

Undergraduate Education
B.S. Biology, University of Mary, Bismarck, ND
Graduate Education
M.S. Biology, Kansas State University
Ph.D. Organismal Biology and Ecology, University of Montana

Areas of Expertise

  • Wildlife disease ecology
  • Ticks and tick-borne disease
  • Anti-tick vaccines
  • Exotic and invasive species
  • OneHealth

Professional Summary

Tammi Johnson, Ph.D. is an Assistant Professor in the Texas A&M Department of Rangeland, Wildlife, and Fisheries Management. As the leader of the Wildlife Disease Ecology Lab, her research seeks to identify strategic research priorities in the conservation and management of native, exotic and invasive wildlife populations at the livestock interface. Johnson’s lab focuses on identifying sets of ecological characteristics that contribute to pathogen and vector maintenance, emergence, disease risk and ultimately on prevention and control through integrated management practices. An improved understanding of epizootiology will allow for the identification of intervention strategies which will, in turn, benefit wildlife health, agricultural productivity, biodiversity and human health. A major goal for her research program is to align research with the OneHealth framework. Johnson’s overall research aims to develop a multidisciplinary collaborative research program characterizing wildlife disease systems to better understand and mitigate diseases that may be detrimental to species of economic and conservation importance. Since joining AgriLife Research, Johnson has been PI or Co-PI on nine successfully funded projects totaling almost $2.1 million, of which just over $1.1 million has come directly to her research program. Johnson primarily focuses on ticks and tick-borne diseases at the wildlife-livestock interface. She maintains a captive white-tailed deer herd at the Uvalde Research Center.

Selected Publications

Quadros, DG, TL Johnson, TR Whitney, JD Oliver, and AS Oliva Chávez. 2020. Natural plant-derived compounds for tick pest control in livestock and wildlife: pragmatism or utopia? Insects, 11(8):490-515, https://doi.org/10.3390/insects11080490
Paddock, CD, J Hecht, AN Green, KA Waldrup, PD Teel, SE Karpathy and TL Johnson§. 2020. Rickettsia parkeri in the sky islands of West Texas. Journal of Medical Entomology, 57(5):1582-1587, https://doi.org/10.1093/jme/tjaa059
Johnson, TL, CB Graham, SE Maes, A Hojgaard, A Fleshman, KA Boegler, MJ Delorey, KS Slater, SE Karpathy, JKH Bjork, DF Neitzel, EK Schiffman and RJ Eisen. 2018. Prevalence and distribution of seven human pathogens in host-seeking Ixodes scapularis (Acari: Ixodidae) nymphs in Minnesota, USA. Ticks and Tick-borne Diseases, 9(6):1499-1507. https://doi.org/10.1016/j.ttbdis.2018.07.009
Johnson, TL, JKH Bjork, KA Boegler, RJ Clark, MJ Delorey, FM Door, AJ Monaghan, DF Neitzel, EK Schiffman and RJ Eisen. 2018. An acarological risk model predicting the density and distribution of host-seeking Ixodes scapularis nymphs in Minnesota, USA. American Journal of Tropical Medicine and Hygiene, 98(6):1671-1682, https://doi.org/10.4269/ajtmh.17-0539
Palmer, C, EL Landguth, E Stone and TL Johnson. 2018. The dynamics of vector-borne relapsing diseases. Mathematical Biosciences, 297:32-42.
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