At the 14th North American Caribou Workshop, held in September 2012, Marco Festa-Bianchet presented about some of the factors involved in caribou population declines for forest- and mountain-dwelling caribou, as well as some aspects of tundra caribou population changes that are not well undertood.
Marco Festa-Bianchet is a Professor at the University of Sherbrooke.
NOTE: Unfortunately, the audio for this video ends part-way through, but all slides are included.