Introduction aux amphibiens et reptiles du Canada

Age and size of Wood Frogs, Rana sylvatica, from Kuujjuarapik, northern Quebec

“…The geographic range of the Wood Frog (Rana sylvatica) is one of the most extensive among North American ranids. It covers the eastern United States in the favorable forested habitats of the Appalachian and Ozark Mountains, the states of New England, almost all the eastern Canadian provinces including Labrador, the northern two-thirds of Saskachewan, Alberta and British Columbia, and part of the Northwest Territories, Yukon and Alaska (Cook 1984;Conant and Collins 1991) (Figure 1). This cold-adapted species even occurs within the Arctic Circle (up to 69°N); its northern distribution generally follows the northern tree limit.…”