Testing mechanisms and context dependence of costs of plastic shade avoidance responses in Impatiens capensis (Balsaminaceae).

Abstract excerpt

PREMISE OF THE STUDY: Many plant species elongate their shoots in response to neighbor proximity and neighbor height. Although these plastic responses may be beneficial in terms of enhancing light interception, they also may have costs in terms of increased risk of mechanical failure (i.e., lodging or breaking) because of thinner stems. This trade-off between light acquisition and stability may shape the...

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