North American fisher and its geographic distribution. Fisher (Martes pennanti), a mid-sized carnivore, is distributed throughout boreal and montane North America. Subspecific classification has followed geographic subdivision of this range: ssp. pennanti occurs in the east (blue), ssp. columbiana occurs in the Northern Rocky Mountains (light and dark green), and ssp. pacifica is found along the Pacific coast (light and dark red).
Knaus et al. BMC Ecology 2011 11:10 doi:10.1186/1472-6785-11-10