Data for: Can we ignore trait-dependent colonization and diversification in island biogeography?

The application of state-dependent speciation and extinction (SSE) models
to phylogenetic trees has shown an important role for traits in
diversification. However, this role remains comparatively unexplored on
islands, which can include multiple independent clades resulting from
different colonization events. To explore whether assuming no dependence
on traits leads to bias in inference on island dynamics, we extend an
island biodiversity model, DAISIE (Dynamic Assembly of Islands through
Speciation, Immigration and Extinction) to include trait-dependent
diversification simulations, and evaluate the robustness of the inference
model which ignores this trait-dependence. Our results indicate that when
the differences between colonization, extinction and speciation rates
between trait states are moderate, the model shows negligible error for a
variety of island diversity metrics, suggesting that island diversity
dynamics can be accurately estimated without the need to explicitly model
trait dependence. We conclude that for many biologically realistic
scenarios with trait-dependent diversification and colonization, this
simple trait-less inference model is informative and robust to trait
effects on colonization, speciation and extinction. Nonetheless, our new
simulation model may provide a useful tool for studying patterns of trait
variation.