Is physiological flexibility of forest trees constrained by home climate in a rapidly warming world?

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The projected average Australian climate warming of 3 degrees celsius by 2070 represents a shift in climate equivalent to moving 900 km from Sydney to Brisbane. As forest trees cannot migrate fast enough to avoid these unprecedented increases in temperature, the resiliency of Australian forests to climate warming will depend on their capacity to physiologically adjust to higher temperatures. But, can forest trees successfully adjust to new climates in their current locations? This project plans to determine how thermal acclimation influences leaf and tree carbon exchange, and whether this depends upon a tree’s “home” climate. These knowledge gaps limit our ability to predict the future of our forests and consequences for carbon cycling in a warmer world.