Toxicants in Wildlife

Poisoned Fisher Necropsy Summary Intentional Poisoning of a Fisher (Martes pennanti) with a Carbamate Insecticide Laced Bait at an Illegal Marijuana Trespass Cultivation Site.

Recent published paper Conservation Letters 2013 “Impacts of rodenticide and insecticide toxicants from marijuana cultivation sites on fisher survival rates in the Sierra National Forest, California”

Recent published paper M.W. Gabriel et al. 2013 “Silent Forests? Rodenticides on Illegal Marijuana Crops Harm Wildlife”
PDF of rodenticide paper
See Additional Photos
Video: Suspected poisoning case of a fisher (Martes pennanti) in California

Humboldt Institute for Interdisciplinary Marijuana Research-Invited Lecture Flyer

Published paper M.W. Gabriel et al. 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

Frequently asked questions (FAQ) on anticoagulant rodenticides in fishers

2012 Redwood National Park: Invited Speaker Presentation

2012 Wildlife Society Annual Meeting, Western Section: M.Gabriel et al. Fisher Rodenticide Presentation

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