Measuring Selection and Constraint in the Evolution of Growth.

  title={Measuring Selection and Constraint in the Evolution of Growth.},
  author={Mark Kirkpatrick and David Lofsvold},
  journal={Evolution; international journal of organic evolution},
  volume={46 4},
We present a quantitative genetic model for the evolution of growth trajectories that makes no assumptions about the shapes of growth trajectories that are possible. Evolution of a population's mean growth trajectory is governed by the selection gradient function and the additive genetic covariance function. The selection gradient function is determined by the impact of changes in size on the birth and death rates at different ages, and can be estimated for natural populations. The additive… CONTINUE READING

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