";s:4:"text";s:2612:"Western Toad Calling population. Newly hatched tadpoles and toadlets are black. Within Alberta, the Canadian toad occupies roughly the eastern half of the province. This wildlife status report looks at the Canadian toad, one of three species of the genus Bufo found in Alberta (the other species being the western toad and the great plains toad). western Alberta. It is one of only a few amphibians inhabiting alpine areas. The Western Toad is a large toad with a light stripe down the middle of the back and small round or oval ‘warts’ on the back, sides and upper limbs. Two subspecies are recognized, the most widely distributed of which occurs within Canada (B. b. boreas).
The western toad lives nine to 11 years.
Western Toad tadpoles have been found associated with fast flowing streams similar to those utilized by Coastal Tailed Frog tadpoles, which can also be black and similar in size in early stages of growth. Author / Creator Browne, Constance; The western toad (Anaxyrus boreas, formerly Bufo boreas) is one of many amphibian species considered to be at risk of extinction (COSEWIC status is Special Concern). Western Toads are usually green or brown, but their colour varies from olive green to reddish brown or black. Habitat The Canadian toad is generally found in river valleys or along lakes with sandy borders. Scientific Name: Anaxyrus boreas Taxonomy Group: Amphibians COSEWIC Range: British Columbia, Alberta COSEWIC Assessment Date and Status Change: November 2012 COSEWIC Status: Special Concern COSEWIC Status Criteria: COSEWIC Reason for Designation: Almost the entire range of the calling population is within Canada.The toads are particularly sensitive … Once a common inhabitant of the northern interior plains, the population of this species in the province has experience a sharp decline recently, and populations in other areas of its range may be declining as well. Rearing in flowing water habitats, while unusual, may reflect localized adaptations by some Western Toad … It can jump a considerable distance for a toad. western Minnesota and northeastern South Dakota. Even though the Canadian toad requires wetlands for breeding, much of the year is spent in adjacent uplands. A. boreas is frequently encountered during the wet season on roads, or near water at other times.
The western toad (Anaxyrus boreas, formerly Bufo boreas) is a large toad species, between 5.6 and 13 cm (2.2 and 5.1 in) long, native to western North America.