![]() There has been no extensive inventory of Racers in British Columbia. ![]() In the Thompson region, there are 16 Rattlesnake and two Gopher Snake WHA's and in the Okanagan region, there are 10 Gopher Snake, two Rattlesnake and one Racer WHA (Racer Management Team Working Group 2013). Several Wildlife Habitat Areas (WHA's) have been established to protect Rattlesnake and Gopher Snake den sites, some which are known to host Racers. In 2006, this species was listed as Identified Wildlife under the Forest and Range Practices Act. Overall, in the Okanagan-Similkameen region about 10% of the remaining grassland is protected and about 7% in the Thompson region (COSEWIC 2004r). Suitable habitat within protected areas include Okanagan Mountain Provincial Park, Beaver Creek Provincial Park, Throne Ecological Reserve, White Lake Grasslands Protected Area, South Okanagan Grasslands Provincial Park, Churn Creek Protected Area, other areas managed by Nature Trust of BC, and other Ecological Reserves. There are a several protected areas with suitable habitat for Racers however these are mostly small and disconnected from each other and few contain both the summer and winter habitats that are required. Number of Occurrences Appropriately Protected & Managed: Number of Occurrences with Good Viability / Ecological Integrity: Conservation Data Centre has 98 element occurrences mapped. CDC calculated the area of occupancy to be 1,148 km2 (284 2x2 km grid cells), based on mapped occurrences.Īs of December 2017, the B.C. The actual IAO may be larger, as an unknown proportion of racers may hibernate singly away from these sites. ![]() COSEWIC (2015i) calculated the estimated extent of occurrence to be 48,493 square kilometres.ĬOSEWIC (2015i) calculated the index of area of occupancy ( IAO) to be less than 1,000 km², based on known and suspected communal overwintering den sites. Racers are restricted to the dry southern interior grasslands of the southern Columbia, Okanagan/Similkameen, Kettle, Thompson, Nicola and the middle Fraser drainages (Shewchuck and Waye 1995 Matsuda et al. North American Racer is restricted to the dry grasslands of the southern interior of the province where they are faced with significant threats, including road mortality along with habitat loss and fragmentation. BC Conservation Data Centre: Conservation Status Report Coluber constrictor
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