Total area classified as “Highly Suitable” and “Moderately Suitable” Aleutian shield fern Polystichum aleuticum habitat per island in the Andreanof Islands of the Aleutian archipelago, Alaska, 2012, when considering topographical habitat characteristics (elevation, aspect, and slope) found at known locations of shield fern populations. All refers to the “Highly Suitable” habitat delineated under all weighting scenarios considered (total area was identical for all weighting scenarios). Equal, Elevation, Aspect, and Slope refer to the “Moderately Suitable” habitat delineated for the different weighting scenarios used. A value within parentheses is the percent of each island that was classified as suitable habitat.