Creating a Species Distribution Model

Compile presence/ absence information

Obs. data from Gulf Islands

Obs. data from iNaturalist

Obs. data from Ian?

Determine environmental predictor variables

Shoreline habitat classification layer

Freshwater features

Aspect?

Distance to freshwater features

Mean high tide line

Coastal DEM?

Proximity to known established populations

Ocean currents?

Fit model

Generate prediction

Evaluate model results

Using R?

Likely employ a GLM to model distribution

Using QGIS?

Refine input spatial data layers

Visualize output in QGIS

Interpolate surfaces as needed

Use Maxent?