Parent Layer: Sensitive Snake

Name: Sensitive Snake Hibernacula Range Label

Display Field: Range

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Description: This layer represents the Sensitive Snake Hibernacula Range label and is not visible beyond the scale of 1:1,733,371. Snake hibernacula are protected from disruption or destruction year-round under the Alberta Wildlife Act, therefore surveys for hibernacula must be conducted prior to landuse activities to prevent contravention of the Act. The Sensitive Snake Hibernacula Range provides land users/disposition holders and government departments with information regarding the habitat where snake hibernacula are expected to occur in southern Alberta for the purpose of pre-development wildlife surveys. Specific operating conditions apply based on the results of the survey. This dataset (formerly known as the Sensitive Snake Species Range) is produced for the Government of Alberta and is available to the general public. Please consult the Distribution Information of this metadata for the appropriate contact to acquire this dataset. The Sensitive Snake Hibernacula Range was delineated for prairie rattlesnake (Crotalus viridis), bullsnake (Pituophis catenifer), western hognose snake (Heterodon nasicus ) and eastern yellow-bellied racer (Coluber constrictor). A minimum convex polygon (MCP) was used to delineate a range based on observation records from Alberta's Fish and Wildlife Information Management System (FWMIS) and known snake hibernacula within Alberta. Additional considerations were used to further filter range boundaries after observation data were plotted. Habitat Suitability Indices of prairie rattlesnake was combined to identify suitable hibernacula sites with the species ranges. Bio- and geophysical restrictions to species patterns (e.g., rivers, elevation, ecoregions) were used to refine ranges as appropriate. Once an MCP was adequately modified, its border was smoothed. In 2020, the Sensitive Snake Species Range layer name was changed tot he Sensitive Snake Hibernaculum Range and included new information and areas. Data Use Limitations This material has been provided with the intent that it be readily available for personal and public non-commercial (educational) use and except where otherwise prohibited, may be reproduced, in part or in whole and by any means, without charge or further permission from the Fish and Wildlife Stewardship Branch. We only ask that: The materials not be modified, users exercise due diligence in ensuring the accuracy of the materials, the Government of Alberta be identified as the source of the materials, the reproduction is not represented as an official version of the materials reproduced, nor as having been made in affiliation with or with the endorsement of the Government of Alberta, reproduction of multiple copies of materials, in whole or in part, for the purposes of commercial distribution is prohibited, except with written permission from the Fish and Wildlife Stewardship Branch. To obtain permission to reproduce materials on this site for commercial purposes, please contact the Fish and Wildlife Stewardship Branch.

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Copyright Text: Copyright Government of Alberta

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