Testing the accuracy of methods for reconstructing ancestral states of continuous characters.

  title={Testing the accuracy of methods for reconstructing ancestral states of continuous characters.},
  author={Andrea J Webster and Andy Purvis},
  journal={Proceedings. Biological sciences},
  volume={269 1487},
Many methods are available for estimating ancestral values of continuous characteristics, but little is known about how well these methods perform. Here we compare six methods: linear parsimony, squared-change parsimony, one-parameter maximum likelihood (Brownian motion), two-parameter maximum likelihood (Ornstein-Uhlenbeck process), and independent comparisons with and without branch-length information. We apply these methods to data from 20 morphospecies of Pleistocene planktic Foraminifera… CONTINUE READING

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