Consequences of intraspecific niche variation: phenotypic similarity increases competition among recently metamorphosed frogs.

Abstract excerpt

Phenotype is often correlated with resource use, which suggests that as phenotypic variation in a population increases, intraspecific competition will decrease. However, few studies have experimentally tested the prediction that increased intraspecific phenotypic variation leads to reduced competitive effects (e.g., on growth rate, survival or reproductive rate). We investigated this prediction with two...

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