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stochastic_mapping

This directory contains a sample of stochastic mappings that were used in the study

Landis MJ, Freyman WA, and Baldwin BG. "Retracing the Hawaiian silversword radiation despite phylogenetic, biogeographic, and paleogeographic uncertainty." Evolution (Accepted 2018)

All stochastic mappings were generated using the preferred birth-death process settings described in the paper, i.e. assuming expected birth and death rate priors of 0.1 and sampling probability of 0.61. To reduce the size of this file, only 100 of 2000 stochastic mappings are presented for each model. Each page corresponds to an independent posterior sample of phylogeny (topology and divergence times), biogeographic history, and paleogeographic configuration of the islands.

  • biogeo_silversword.model_G4.stoch_map corresponds to the +G4 analysis, where the four Modern Island areas (Kauai, Oahu, Maui Nui, and Hawaii) appear in sequence. This is the most paleogeographically realistic model considered here.
  • biogeo_silversword.model_G1.stoch_map corresponds to the +G1 analysis, where the four Modern Island areas (Kauai, Oahu, Maui Nui, and Hawaii) were assumed to originate at the same time as Kauai. This is a model is considered "hotspot-naive".
  • biogeo_silversword.model_G0.stoch_map corresponds to the -G analysis, where geographical features were ignored (i.e. islands were always present, no distances between islands). This model is considered "geography-naive".