Susannah Woodruff

A picture of a woman standing next to a cow in the grass with snowy mountains in the background
Wildlife Biologist

1011 East Tudor Road
Anchorage, AK 99503
United States

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About Susannah Woodruff

Susannah has worked as a Wildlife Biologist in the Polar Bear Program since 2019. Prior to joining FWS Marine Mammals Management, Susannah worked as wildlife researcher in Alaska, Idaho, and Wyoming, most recently with the Alaska Department of Fish and Game. Susannah has a PhD in Wildlife Science from the University of Idaho and an MS in Wildlife Biology from Prescott College.

Professional Affiliations

  • The Wildlife Society (2004­–current)
  • Alaska Chapter of The Wildlife Society (2017–current)
  • International Association for Bear and Research Management (2019–current)
  • Scientific Working Group of the US-Russia Bilateral Polar Bear Commission (2020–current)



Woodruff, S.P., E.M. Andersen, R.R. Wilson, L.S. Mangipane, S.B. Miller, K.J. Klein, and P.R. Lemons. In review. Evaluating the effects of human disturbance on denning polar bears.

Woodruff, S.P., J.J. Blank, S.S. Wisdom, R.R. Wilson, G.M. Durner, T.C. Atwood, C.J. Perham, and C.M. Pohl. In Press. Evaluating the efficacy of aerial infrared surveys to detect artificial polar bear dens. Wildlife Society Bulletin.

Woodruff, S.P., D.A. Eacker, and L.P. Waits. 2021. Estimating coyote densities with local, discrete Bayesian capture-recapture models. Journal of Wildlife Management 85:73–86.

Woodruff, S.P. and M.D. Jimenez. 2019. Winter predation patterns of wolves in northwestern Wyoming. Journal of Wildlife Management 83:1352–1367.

Woodruff, S.P., M.D., Jimenez, and T.R. Johnson. 2018. Characteristics of winter wolf kill sites in the southern Yellowstone ecosystem in the presence of elk feedgrounds. Journal of Fish and Wildlife Management 9:155–167.

Woodruff, S.P., P.M. Lukacs, and L.P. Waits. 2018. Comparing performance of multiple non-invasive genetic capture–recapture methods for abundance estimation: a case study with the Sonoran pronghorn Antilocapra americana sonoriensis. Oryx 54:412–420.

Woodruff, S.P., P.M. Lukacs, D. Christianson, and L.P. Waits. 2016. Estimating Sonoran pronghorn abundance and survival with fecal DNA and capture-recapture methods. Conservation Biology 30:1102–1111.

Woodruff, S.P., T.R. Johnson, and L.P. Waits. 2016. Examining the use of faecal pellet morphometry to differentiate age classes in Sonoran pronghorn. Wildlife Biology 22:217–227.

Horne, J.S., J.J. Hervert, S.P. Woodruff, and L.S. Mills. 2016. Evaluating the benefit of captive breeding and reintroductions to endangered Sonoran pronghorn. Biological Conservation. doi:10.1016/j.biocon.2016.02.005

Woodruff, S.P., T.R. Johnson, and L.P. Waits. 2015. Evaluating the interaction of faecal pellet deposition rates and DNA degradation rates to optimize sampling design for DNA-based mark-recapture analysis of Sonoran pronghorn. Molecular Ecology Resources 15:843:854.

Woodruff, S.P., J.R. Adams, T.R. Johnson, and L.P. Waits. 2014. Rapid species identification of Sonoran pronghorn from fecal pellet DNA. Wildlife Society Bulletin 38: 842-848.

Jimenez, M.D., E.E. Bangs, D.K. Boyd, D.W. Smith, S.A. Becker, D.E. Ausband, S.P. Woodruff, E.H. Bradley, J. Holyan, and K. Laudon. 2017. Wolf dispersal in the Rocky Mountains, Western United States: 1993–2008. Journal of Wildlife Management 81:581–592.

Jimenez, M.D., V.J. Asher, C. Bergman, E.E. Bangs, and S.P. Woodruff. 2009. Gray Wolves, Canis lupus, killed by cougars, Puma concolor, and a grizzly bear, Ursus arctos, in Montana, Alberta, and Wyoming. Canadian Field-Naturalist 122:76-78.

Woodruff, S.P. 2015. Developing and evaluating genetic monitoring tools for Sonoran pronghorn (Antilocapra americana sonoriensis). Dissertation, University of Idaho, Moscow, Idaho.

Woodruff, S.P. 2006. Characteristics of wolf and cougar kill sites in the southern Yellowstone ecosystem. Thesis, Prescott College, Prescott, Arizona.

Areas of expertise
Large carnivore recovery and management
Predator-prey interactions
Non-invasive genetics