Parks Canada

Kootenay National Park samples 28 randomly selected potential amphibian breeding sites (out of possible 66) to determine presence or absence of amphibian species. Each of the 28 sites is visited 3 times every 2 years and all detected species are recorded.

Frogs, like all other amphibians, are declining all around the world, in both pristine and protected areas as well as suburban marshes bordered by highways. This decline is due to the combined effects of a number of factors, such as an increase in ultraviolet rays, chemical pollution, habitat...

Frogs and toads were monitored through visual and audio surveys during twice-yearly wetland visits between May-June 2006-2014. Frogs and toads were assessed by park staff for physical deformities, abundance and diversity

Yoho National Park samples 28 randomly selected potential amphibian breeding sites (out of possible 66) to determine presence or absence of amphibian species. Each of the 28 sites is visited 3 times every 2 years and all detected species are recorded.