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If you have any questions on the information presented, or require additional report data or attachments, please contact the Report Contact
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This project presents a sensitive ecosystems inventory for the Atlin-Taku planning area in northwestern British Columbia. The study area includes portions of the Atlin, Gladys, Tagish, Taku and Whiting watersheds. The inventory followed the Standard for Mapping Ecosystems at Risk in British Columbia (RISC 2006), at a reconnaissance level (1:250,000 scale). A map at a scale of 1:250,000 was produced.
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Author: De Groot, A. and J. Pojar
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Old Reference System: 4837
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Date Published: Nov 2008
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Report ID: 35426
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Audience: Government and Public
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This project presents a sensitive ecosystems inventory for the Atlin-Taku planning area in northwestern British Columbia. The Atlin-Taku planning area covers more than 3 million hectares, and includes portions of the Atlin, Gladys, Tagish, Taku and Whiting watersheds. The Atlin-Taku planning area spans a transition between coastal and interior boreal environments. This is reflected in the Biogeoclimatic Ecosystem Classification (BEC) of the area. The study area includes boreal biogeoclimatic units (BWBS, SWB and BAFA), coastal biogeoclimatic units (CWH, MH and CMA), transitional biogeoclimatic units (ESSF and SBS) and Alpine ecosystems (BAFA and CMA).
The objectives of this report are to: 1) Conduct a reconnaissance level inventory of terrestrial sensitive ecosystems in the Atlin-Taku planning area; 2) Provide an overview of the threats to these sensitive ecosystems, and: 3) Map the location of the inventoried sensitive ecosystems.
A biophysical approach was used for this project, to identify locations with atypical environmental characteristics which will endure on the landscape and continue to harbour regionally unusual biota and processes regardless of climate or environmental change. Water features were not the focus of the report, though some were identified.
Sensitive ecosystems covered 66,700 ha or 2.2% of the Atlin-Taku study area. Sensitive ecosystem types were diverse, ranging from those depending on hydrological processes such as flooding, those depending on geological processes such as landslides, to those depending on bedrock geology such as limestone canyons, calcareous wetlands, ultramafic bedrock influenced plant communities, and hydromagnesite and tufa deposits.
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