This species can be found in south-central Canada and north-central USA, from southern Northwest Territories through Alberta, Saskatchewan, and Manitoba to northern Montana, North Dakota, northeastern South Dakota, and west-central Minnesota (Conant and Collins 1991).
Habitat and Ecology
Its habitat is grasslands, prairies, plains and aspen parklands; areas with relatively soft soil. It is usually found in or near water and burrows into soil when inactive. Eggs are laid and larvae develop in shallow water of lakes, ponds, quiet streams, marshes, potholes, and roadside ditches.
Some local declines have been reported (Green 1997), but provincial conservation data centres rank this species as apparently secure in the main portion of its range in Alberta, Saskatchewan, and Manitoba.
Generally, there are no major threats to this species. However, local declines and low abundance in Alberta have been attributed to loss of wetlands; low abundance/population fluctuation in Manitoba possibly was due to drought (see Green 1997). Oil and gas exploration has more recently become a threat to habitat.
Better information on abundance and population trends is needed.
Red List Status
Least Concern (LC)
Listed as Least Concern in view of its wide distribution, tolerance of a degree of habitat modification and presumed large population.
Anaxyrus baxteri was formerly included in this species.
IUCN SSC Amphibian Specialist Group 2015. Anaxyrus hemiophrys. The IUCN Red List of Threatened Species 2015: e.T54661A56844532. http://dx.doi.org/10.2305/IUCN.UK.2015-4.RLTS.T54661A56844532.en