- 1) Environmental data: MAT, MAP, Temp Seasonality, Precip Seasonality, Elevation, PET
- 2) Distances between plots (Priority Level 1)
- 3) Area + Perimeter of islands (P/A ratio) (Priority Level 3)
- 4) Anthropogenic disturbance (road density, change in land cover, human population density) (Priority Level 2)
- 5) Isolation metrics for islands (Priority Level 3)
- 6) Hawaii only: substrate age (Priority Level 1)