Dimensionality and Modularity of Adaptive Variation: Divergence in Threespine Stickleback from Diverse Environments.

Abstract excerpt

AbstractPopulations are subjected to diverse environmental conditions that affect fitness and induce evolutionary or plastic responses, resulting in phenotypic divergence. Some authors contend that such divergence is concentrated along a single major axis of trait covariance even if that axis does not lead populations directly toward a fitness optimum. Other authors argue that divergence can occur readily along...

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