Figure 4: Predicted habitat suitability surfaces based on ENMs
for (A) Speyeria atlantis , (B) northern S. hesperis , and
(C) southern S. hesperis . For each lineage, five ENMs were built,
each withholding a different 20% of occurrence localities used for
model evaluation. Background points (n = 10,000) were generated
within each lineage’s buffered minimum convex polygon to sample
available habitat. The average of the five models were used to predict
habitat suitability across the entire study area. Each 1-km grid cell
received a habitat suitability score ranging from 0–1, with higher
values indicating higher suitability.