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Dr. Randy Stahl


      Dr. Randy Stahl, Chemist



Dr. Stahl's research includes areas of method development to detect disease, modeling to predict physiological responses to repellents, and bioenergetics.

NWRC Research Project: Analytical Chemistry

Current Research

Developing non-invasive analytical methods to detect TB in breath or fecal samples as means of identifying infection in a wildlife population. Also developing bioenergetics models to estimate climate effects on poikilotherms with an emphasis on understanding climate constraints on survival. Using QSAR modelling to predict physiological response to repellents and toxicants in target organisms with the objective of understanding how compounds with similar molecular structure elicit a response.


  • Ph.D., University of Maryland
  • M.S., Texas A&M University
  • B.S., University of Tennessee


Contact Information

  • Address: NWRC, 4101 LaPorte Avenue, Fort Collins, CO 80521-2154
  • Telephone 970-266-6062
  • Fax: 970-266-6063
  • E-Mail: randal.s.stahl@aphis.usda.gov

Recent Publications

Goldade, D.A., R.S. Stahl, and J.J. Johnston. 2014. Determination of residue levels of alpha-chloralose in duck tissues. Human-Wildlife Interactions 8(1):123-129.

Ellis, C.K., R.S. Stahl, P. Nol, W.R. Waters, M.V. Palmer, J.C. Rhyan, K.C. VerCauteren, M.McCollum, M.D. Salman. 2014.A pilot study exploring the use of breath analysis to differentiate healthy cattle from cattle experimentally infected with Mycobacterium bovis. PloS One 9(2): e89280. doi: 10.1371/journal.pone.0089280.

Homan H.J., Stahl R.S., Linz G.M. 2013. Comparison of two models for estimating mortality from baitings with Compound DRC-1339 Concentrate avicide. Crop Protection 45:71-75. doi: 10.1016/j.cropro.2012.11.011.

Homan H.J., Stahl R.S., Linz G.M. 2011. Comparing a bioenergetics model with feeding rates of caged European starlings. Journal of Wildlife Management 75:126-131.

Peled N., Ionescu R., Nol P., Barash O., McCollum M., Vercauteren K., Koslow M., Stahl R., Rhyan J., Haick H. 2012. Detection of volatile organic compounds in cattle naturally infected with Mycobacterium bovis. Sensors and Actuators, B: Chemical 171-172:588-594.

Pitt W.C., Stahl R., Yoder C.A. 2010. Emerging challenges of managing island invasive species: potential invasive species unintentionally spread from military restructuring. Proceedings of the Vertebrate Pest Conference 24:5-8.







Additional Information