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Recovery Strategy for the Western Rattlesnake (Crotalus oreganus), the Great Basin Gophersnake (Pituophis catenifer deserticola) and the Desert Nightsnake (Hypsiglena chlorophaea) in Canada 2017

Species at Risk Act

Recovery strategy series
Adopted under Section 44 of SARA

Recovery Strategy for the Western Rattlesnake (Crotalus oreganus), the Great Basin Gophersnake (Pituophis catenifer deserticola) and the Desert Nightsnake (Hypsiglena chlorophaea) in Canada

Photo of Western Rattlesnake, Great Basin Gophersnake, and Desert Nightsnake.
Photo: © (image of Western Rattlesnake - left); Kella Sadler, Environment and Climate Change Canada (image of Great Basin Gophersnake - center); Andrius Valadka (image of Desert Nightsnake - right). © Karl W. Larsen

Part 1 - Table of contents

List of figures

  • Figure 1. Critical habitat for the Great Basin Gophersnake in the Fraser River area (north) in B.C. occurs within the 10 x 10 km standardized UTM grid squares where the criteria and methodology set out in section 1.1 are met. This standardized national grid system indicates the general geographic area within which critical habitat is found; detailed critical habitat mapping is not shown.
  • Figure 2. Critical habitat for the Great Basin Gophersnake in the Fraser River area (central) in B.C. occurs within the 10 x 10 km standardized UTM grid squares where the criteria and methodology set out in section 1.1 are met. This standardized national grid system indicates the general geographic area within which critical habitat is found; detailed critical habitat mapping is not shown.
  • Figure 3. Critical habitat for the Western Rattlesnake and the Great Basin Gophersnake in the Fraser-Thompson area, B.C. occurs within the 10 x 10 km standardized UTM grid squares where the criteria and methodology set out in section 1.1 are met. This standardized national grid system indicates the general geographic area within which critical habitat is found; detailed critical habitat mapping is not shown.
  • Figure 4. Critical habitat for the Western Rattlesnake and the Great Basin Gophersnake in the Thompson area (west), B.C. occurs within the 10 x 10 km standardized UTM grid squares where the criteria and methodology set out in section 1.1 are met. This standardized national grid system indicates the general geographic area within which critical habitat is found; detailed critical habitat mapping is not shown.
  • Figure 5. Critical habitat for the Western Rattlesnake and the Great Basin Gophersnake in the Thompson area (east), B.C. occurs within the 10 x 10 km standardized UTM grid squares where the criteria and methodology set out in section 1.1 are met. This standardized national grid system indicates the general geographic area within which critical habitat is found; detailed critical habitat mapping is not shown.
  • Figure 6. Critical habitat for the Great Basin Gophersnake in the Nicola area, B.C. occurs within the 10 x 10 km standardized UTM grid squares where the criteria and methodology set out in section 1.1 are met. This standardized national grid system indicates the general geographic area within which critical habitat is found; detailed critical habitat mapping is not shown.
  • Figure 7.Critical habitat for the Western Rattlesnake and the Great Basin Gophersnake in the Vernon area, B.C. occurs within the 10 x 10 km standardized UTM grid squares where the criteria and methodology set out in section 1.1 are met. This standardized national grid system indicates the general geographic area within which critical habitat is found; detailed critical habitat mapping is not shown.
  • Figure 8. Critical habitat for the Western Rattlesnake, the Great Basin Gophersnake and the Desert Nightsnake in the Okanagan area, B.C. occurs within the 10 x 10 km standardized UTM grid squares where the criteria and methodology set out in section 1.1 are met. This standardized national grid system indicates the general geographic area within which critical habitat is found; detailed critical habitat mapping is not shown.
  • Figure 9. Critical habitat for the Western Rattlesnake, the Great Basin Gophersnake and the Desert Nightsnake in the Okanagan-Similkameen area, B.C. occurs within the 10 x 10 km standardized UTM grid squares where the criteria and methodology set out in section 1.1 are met. This standardized national grid system indicates the general geographic area within which critical habitat is found; detailed critical habitat mapping is not shown.
  • Figure 10. Critical habitat for the Western Rattlesnake and the Great Basin Gophersnake in the Midway area, B.C. occurs within the 10 x 10 km standardized UTM grid squares where the criteria and methodology set out in section 1.1 are met. This standardized national grid system indicates the general geographic area within which critical habitat is found; detailed critical habitat mapping is not shown.
  • Figure 11. Critical habitat for the Western Rattlesnake and the Great Basin Gophersnake in the Grand Forks area, B.C. occurs within the 10 x 10 km standardized UTM grid squares where the criteria and methodology set out in section 1.1 are met. This standardized national grid system indicates the general geographic area within which critical habitat is found; detailed critical habitat mapping is not shown.

List of tables

  • Tables 1. Summary of essential functions, biophysical features, and key attributes of Western Rattlesnake (CROR), Great Basin Gophersnake (PICA – core, connective), and Desert Nightsnake (HYCH) critical habitat.
  • Tables 2. Schedule of Studies to Identify Critical Habitat for the Western Rattlesnake, the Great Basin Gophersnake and the Desert Nightsnake..
  • Tables 3. Activities likely to result in destruction of critical habitat for the Western Rattlesnake (CROR), the Great Basin Gophersnake (PICA – core, connective), and the Desert Nightsnake (HYCH).

Part 2 - Table of contents

Table of contents