Wolverines are the largest of the weasel family, about the size of a medium-size dog, but are extremely strong, agile, and seemingly fearless. They were sought by trappers for their fur which is resistant to frost and so prized as lining around the hoods of winter parkas.
Photo Credit: Jeff Ford- AP-CP

Studying a boreal forest “ghost”


They’re sometimes referred to a ghost creature as their tracks are often seen, but the mysterious wolverines themselves, very seldom.

The research is taking place in nort-western Alberta near Bitscho Lake

The research is taking place in north-western Alberta near Bitscho Lake

In fact, surprisingly little is known about the creature.

Matt Scrafford is a graduate student in the department of Biological Sciences at the University of Alberta. He is currently engaged in a project in the northwest corner of Alberta, near the boundary with the Northwest Territories to learn more about them where I reached him on his mobile phone.


One thing that is known about the creature, is that for their size, (about the same as a medium sized dog) they are extremely tough.

University of Alberta biologist Matt Scrafford and drugged wolverine. Note the very wide paws which act like snowshoes and help it to travel through deep snow © Brad Smith

The species exists throughout the boreal forest across Canada, mostly in northern areas. Individual ranges are thought to be as much as up to several hundred kilometres.

Scrafford and fellow researchers are live-trapping wolverines, and gathering statistical information on things like size, sex, weight, age and general health information as part of their study.

A general estimate of wolverine numbers is also part of the research, again as so little is known at this point in Alberta and indeed elsewhere right across the country.

Before releasing the animals,  the scientists attach radio tracking collars to determine the animal’s range and how the presence of human activity affects their habits.

This latter aspect comes in the form of roads and road building and oil and gas exploration activity.  The idea being that with better understanding of the effect such activities have on the animals, the better they will be able to develop mitigating methods.

One of the wolverines labelled "M2" leaves a trap with a bit of bait meat. The traps have to be built with large logs, as an angry wolverines can chew and scratch their way through these logs in less than 24 hours. Scrafford says the traps are checked twice a day.

Trail cam photo of wolverine “M2” as it leaves a trap with a bit of bait meat. The traps have to be built with large logs, as an angry wolverine can chew and scratch their way through these logs in less than 24 hours. Scrafford says the traps are checked twice a day.(temperature recorded at time of photo was -26C )

Although this is the first “field” year in this research, Matt Scrafford has been working on the project for a couple of years now. He says the winter field study aspect will likely continue for another two or possibly three winter seasons.

Matt Scrafford says working in such close quarters with this elusive creature has left him with an even greater respect and admiration for them.

Ontario Natural Resources Ministry- wolverine page

YOUTUBE  On the Wolverine Trail- chapter 1

YOUTUBE  On the wolverine trail chapter 2

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One comment on “Studying a boreal forest “ghost”
  1. maddie says:

    cool but what are they called can i call them “forest cool-a-bear”