OBSERVATION OF ABUNDANT NORTHERN LEOPARD FROGS AT WARGATIE LAKE, MANITOBA Cary Hamel, Nature Conservancy of Atlas observers have reported Canada, Manitoba Region, 200-611 densities of frogs as high as 100 Corydon Ave., Winnipeg, MB R3L 0P3 individuals per 100 m2.6'7 Several
[email protected] (up to five to 10 in places) northern Melissa Grantham, Nature Conservancy leopard frogs per metre of shoreline of Canada, Manitoba Region, 200-611 (considered "immense numbers") Photo credit: Annie McLec Corydon Ave., Winnipeg, MB R3L 0P3 were reported at the Pinawa sewage
[email protected] the season prior to surveys).10 The lagoons in July 1990, which were property lies adjacent to perennial Conservation Status similar to observations at a Weyburn, grass pasture, hayland, wetlands, & Local Abundance Saskatchewan golf course in July and Wargatie Lake. Annual cropland The northern leopard frog 2003.7-9 occurs within 800 m of the property (.Lithobates pipiens) is a Species and is characteristic of regional land of Special Concern in the prairie Study Area & Methods use. Wargatie Lake is 160 ha large provinces.1 These frogs reguire three Surveys occurred on a 65 ha and 12 m deep.11 habitat types to complete their parcel that is a component of the While conducting vegetation life cycle: terrestrial (uplands and Nature Conservancy of Canada's surveys on September 8, 2011, native prairie) for summer foraging, Riding Mountain House conservation Nature Conservancy of Canada staff wetlands for reproduction, and project near Keeseekoowenin, south (Cary Hamel, Julie Pelc, and Levi permanent water bodies that do of Riding Mountain National Park, Newediuk) noted what appeared not freeze solid for overwintering.1'3 Manitoba (Fig.