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    Description

    Physiological responses to temperature extremes are considered strong drivers of species’ demographic responses to climate variability. Plants are typically classified as either avoiders or tolerators in their freezing‐resistance mechanism, but a gradient of physiological‐threshold freezing responses may exist among individuals of a species. Moreover, adaptive significance of physiological freezing responses is poorly characterized, particularly under warming conditions that relax selection on cold hardiness.

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    Citation

    Lazarus, Brynne E.; Germino, Matthew J.; Richardson, Bryce A. 2019. Freezing resistance, safety margins, and survival vary among big sagebrush populations across the western United States. American Journal of Botany. 106(7): 922-934.

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    Keywords

    Artemisia tridentata, Asteraceae, cold hardiness, freezing avoidance, freezing resistance, freezing tolerance, freezing safety margin, ice nucleation temperature, LT50, relaxed selection

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https://www.fs.usda.gov/treesearch/pubs/58610