Size variability and self-thinning in wild rice (Zizania aquatica)

Size variability decreases during the course of density-dependent mortality (self-thinning) in dense, naturally-occurring monocultures of wild-rice in a tributary to the Chesapeake Bay. As self-thinning progresses, the size distribution changes from high inequality and positive skewness to become more uniform and equal. This is consistent with the hypothesis that self-thinning is driven by competition for light.

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