The evolution of trade-offs: geographic variation in call duration and flight ability in the sand cricket, Gryllus firmus.

Abstract excerpt

Quantitative genetic theory assumes that trade-offs are best represented by bivariate normal distributions. This theory predicts that selection will shift the trade-off function itself and not just move the mean trait values along a fixed trade-off line, as is generally assumed in optimality models. As a consequence, quantitative genetic theory predicts that the trade-off function will vary among populations in...

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