WCS Canada

Our Staff

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Matthew Scrafford
Wolverine Conservation Scientist
Dr. Matt Scrafford is the Wolverine Conservation Scientist with Ontario’s Northern Boreal Landscape program. Matt works with government, industry, indigenous groups, and trappers to advance the understanding and conservation of wolverines in Ontario. Currently, Matt is using radiotelemetry and motion-sensor cameras in Red Lake to determine the effects of forestry on wolverine ecology at their southern range edge. Matt also is working with First Nations in Aroland and Slate Falls to document wolverine occurrence on their traditional land. He began his ecology career as an assistant on U.S. Forest Service wildlife research projects in the Greater Yellowstone Ecosystem. Along the way, he also worked wildland fire as a U.S. Forest Service Hotshot. He received his MSc at Montana State University where he studied the ecology of reintroduced beavers north of Yellowstone National Park. Matt received his PhD from the University of Alberta with a research focus on wolverine habitat selection, movement, foraging behaviour, and density in industrialized habitats in the Rainbow Lake and Birch Mountains areas of northern Alberta. This work was featured in the CBC Nature of Things documentary “Wolverine: Ghost of the northern forest”.
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Justina Ray
President & Senior Scientist
Dr. Justina Ray has led the Wildlife Conservation Society Canada since its incorporation in 2004. In addition to overseeing the operations of WCS Canada, Justina is involved in research and policy activities in associated with conservation planning in northern landscapes, with a particular focus on wolverine and caribou. Although Justina worked for years in African and Asian tropical forests, North America has been her predominant geographic focus over the past decade. The questions that drive her research are rooted in evaluating the role of shifting landscapes in biodiversity decline and/or change in forested ecosystems. These issues include quantifying the impacts of development activities on biodiversity, including effects of forest changes on mammal population and community structure, and monitoring of species at risk. In Canada, Justina has been appointed to numerous government-led advisory panels, including: Ontario Wolverine Recovery Team, the Nova Scotia Marten and Lynx Recovery Team, the Ontario Caribou Science Advisory Panel, the federal Boreal Caribou Science Advisory Group for the Critical Habitat Science Review, Committee on the Status of Species at Risk in Ontario (COSSARO), the Lake Simcoe Science Advisory Committee, and the Ontario Far North Science Advisory Panel. In 2006-7, she served on the Endangered Species Act Review Advisory Panel for the Ontario Ministry of Natural Resources through to the passage of a new Act in May 2007. Since 2009, she has served as co-chair of the Terrestrial Mammal Subcommittee of The Committee on the Status of Endangered Wildlife in Canada (COSEWIC). Justina graduated from University of Florida with a Ph.D. in 1996; her dissertation subject was on the community ecology of forest carnivores in Central Africa. She has authored or co-authored more than thirty book chapter, journal, or popular articles, and is lead editor of the book Large Carnivores and the Conservation of Biodiversity (Island Press; March, 2005), co-editor of Noninvasive Survey Techniques for North American Carnivores (Island Press, 2008), and co-author of Caribou and the North: A Shared Future (Dundurn Press, 2008). She is Adjunct Professor at the University of Toronto (Faculty of Forestry) and Trent University (Biology Department), and Research Associate at the Center for Biodiversity and Conservation Biology at the Royal Ontario Museum. She is co-chair of the Board of Directors of Two Countries, One Forest (a Northern Appalachians conservation network).
John Weaver
Senior Conservation Scientist
John Weaver is a carnivore conservation biologist for WCS based in Missoula, Montana with field programs in the western United States and Canada that are focused on large landscape conservation, wildlife connectivity and adaptation to climate change. Over the past 25 years, John has played many key roles in large carnivore conservation in the United States and Canada. His dissertation research was on the ecology of wolf predation in the high-diversity ungulate environment of Jasper National Park, Alberta. John has held leadership positions with the U.S. Forest Service and U.S. Fish & Wildlife Service on endangered species and has served on several recovery teams, including for both wolves and grizzly bears. Over the years, he has perfected hair snaring techniques for lynx and bear surveys and invented a lynx lure that is now widely used. He has authored more than 20 scientific publications and served as a reviewer for five scientific journals. John has an academic appointment at the University of Montana. He is particularly interested in conservation strategies that address the resiliency mechanisms of vulnerable species.

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