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  1. 4981

    The Use of Critical Levels for Determining Plant Response to Ozone in Europe and in North America by Robert C. Musselman, Allen S. Lefohn

    Published 2007-01-01
    “…Critical levels have not been used in North America; however, recent interest in the U.S. and Canada for using critical loads for nitrogen and sulfur has generated interest in using critical levels for O3. …”
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    Quantifying forest disturbance regimes within caribou (Rangifer tarandus) range in British Columbia by James C. Maltman, Nicholas C. Coops, Gregory J. M. Rickbeil, Txomin Hermosilla, A. Cole Burton

    Published 2024-03-01
    “…Abstract Habitat disturbance is a major driver of the decline of woodland caribou (Rangifer tarandus caribou) in Canada. Different disturbance agents and regimes negatively impact caribou populations to different degrees. …”
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