*BOLD indicates IERC scientific contribution
2023
Journal Articles
Rich, L., Medel, I.D., Bangen, S., Wengert, G.M., Toenies, M., Tucker, J., Gabriel, M.W., and Davis, C. (2023). Integrating existing data to assess the risk of an expanding land use change on mammals. Landsc Ecol (2023). https://doi.org/10.1007/s10980-023-01780-1
2022
Journal Articles
Medel, I.D., Gabriel, M.W., Wengert, G.M., Filigenzi, M.S., and D.L. Clifford (2022). Passive monitoring of soluble pesticides linked to cannabis cultivation: a multiscale analysis. Water Quality Research Journal, 57(4), 233-246.
2021
Journal Articles
Hofstadter, D.F., Kryshak, N.F., Gabriel, M.W., Wood, C.M., Wengert, G.M., Dotters, B.P., Roberts, K.N., Fountain, E.D., Kelly, K.G., Keane, J.J. and Whitmore, S.A., (2021). High rates of anticoagulant rodenticide exposure in California Barred Owls are associated with the wildland–urban interface. The Condor, 123(4), pp.036.
Wengert, G.M., J.M. Higley, M.W. Gabriel, H. Rustigian-Romsos, W.D. Spencer, D.L. Clifford, and C. Thompson (2021). Distribution of Trespass Cannabis Cultivation and its Risk to Sensitive Forest Predators in California and Southern Oregon. PLoS ONE, 16(9): e0256273.
2020
In-house Reports
Wengert, G.M., I.D. Medel and M.W. Gabriel (2020). Threats from Toxicants at Illegal Cannabis Cultivation Sites on Public and Adjacent Private Lands to Reintroduced California Condors in California. Final Report to National Park Service, Agreement P17AC01674
Gabriel, M.W., G.M. Wengert and I.D. Medel (2020). Reclaiming our Public Lands and Watersheds from the Environmental Threats of Trespass Cannabis Cultivation. Final Report to California Department of Fish and Wildlife, Grant Agreement P1796020
2019
Journal Articles
Wiens J.D., Dilione K., Eagles-Smith C.A., Herring G., Lesmeister D.B., Gabriel M.W., Wengert G.M., and D.C. Simon. (2019). Anticoagulant rodenticides in Strix owls indicate widespread exposure in west coast forests. Biological Conservation 238.
2018
Journal Articles
Gabriel, M. W., L. V. Diller, J. P. Dumbacher, G. M. Wengert, J. M. Higley, R. H. Poppenga, and S. Mendia, (2018) Exposure to rodenticides in Northern Spotted and Barred Owls on remote forest lands in northwestern California: evidence of food web contamination. Avian Conservation and Ecology 13(1):2.
Check out the media page to see the press releases on this article!
Franklin, Alan B., Carlson, Peter C., Rex, Angela, Rockweit, Jeremy T., Garza, David, Culhane, Emily, Volker, Steven F., Dusek, Robert J., Shearn-Bochsler, Valerie I., Gabriel, Mourad W. and Horak, Katherine E., (2018) Grass is not always greener: rodenticide exposure of a threatened species near marijuana growing operations. BMC Research Notes 11: 94.
Book Chapters
Wengert, G.M., Gabriel, M.W., Thompson, C, J.M. Higley, Ecological impacts across the landscape from trespass marijuana cultivation on western public lands. in Where There’s Smoke: The Environmental Science, Public Policy, and Politics of Marijuana. Pgs. 29-39. C. Miller editor, University Press of Kansas
Thompson C., M.W.Gabriel, J.M. Higley, and G.M. Wengert, Effects of illegal marijuana cultivation on wildlife. Pesticide exposure in a native carnivore and consequences for the species survival. in Where There’s Smoke: The Environmental Science, Public Policy, and Politics of Marijuana. Pgs. 40-57. C. Miller editor, University Press of Kansas
Higley J.M., M.W.Gabriel, C.Thompson, G.M. Wengert, The Marijuana Green Rush is Anything but Green on Hoopa Tribal Lands. in Where There’s Smoke: The Environmental Science, Public Policy, and Politics of Marijuana. Pgs. 58-68. C. Miller editor, University Press of Kansas
2017
Journal Articles
C. Thompson, M.W. Gabriel, and K. Purcell. (2017) The Ongoing Struggle against Marijuana Cultivation and Toxicant use in Western Forests, an Ever-changing Ecological Battlefield. The Wildlife Professional, 11 (3):42-46.
2015
Journal Articles
M.W. Gabriel, L. Woods, G.M.,Wengert, N. Stephenson,J.M. Higley, C.Thompson, S.M. Matthews, R.A. Sweitzer, K. Purcell, R.H.Barrett, and S.M.Keller, (2015). Patterns of natural and human-caused mortality factors of a rare forest carnivore, the fisher (Pekania pennanti) in California. PLoS ONE, 10(11), p.e0140640.
R.A. Sweitzer, V.D. Popescu, C.Thompson, K. Purcell, R.H. Barrett, G.M. Wengert, M.W. Gabriel, and L.Woods, (2015), Mortality risks and limits to population growth of fishers. The Journal of Wildlife Management. doi: 10.1002/jwmg.1020.
2013
Journal Articles
Conservation Letters (2013) “Impacts of rodenticide and insecticide toxicants from marijuana cultivation sites on fisher survival rates in the Sierra National Forest, California”.
M.W. Gabriel et al. (2013) “Silent Forests? Rodenticides on illegal marijuana crops harm wildlife”.
PDF of rodenticide paper.
Video: Confirmed poisoning case of a fisher (Pekania pennanti) in California.
Necropsy Summary
Poisoned fisher necropsy summary (2013): Intentional poisoning of a fisher (Martes pennanti) with a carbamate insecticide laced bait at an illegal marijuana trespass cultivation site.
2012
Journal Articles
M.W. Gabriel, L.W. Woods, R. Poppenga, R.A. Sweitzer, C. Thompson, S.M. Matthews, J.M. Higley, S.M. Keller, K. Purcell, R.H. Barrett, G.M. Wengert, B.N. Sacks, D.L. Clifford, (2012) “Anticoagulant rodenticides on our public and community lands: Spatial distribution of exposure and poisoning of a rare forest carnivore”
PDF of rodenticide paper
Rodenticide in fisher home ranges Short PDF documentation of an abandoned illegal marijuana grow site located within several fisher home-ranges where anticoagulant rodenticides and other toxicants were found
2011
Presentation Summaries
2011 Wildlife Society annual meeting, western section: M.Gabriel et al. Fisher mortality presentation
2011 Mourad W. Gabriel presentation to Sierra adaptive management project fisher stakeholder meeting, Fresno CA
Frequently asked questions (FAQ) on anticoagulant rodenticides in fishers