The Species Index for aquatic ecosystems is based on ranges of aquatic and amphibious species pulled from a list of 398 U.S. FWS Trust Species. Area of Influence (AOI) range maps for each species were pulled from the USFWS’ Information for Planning and Consultation (IPaC) system, stacked, and summarized within 5-mile hexagons. The resulting layer was then clipped to the Middle South subregion boundary and filtered to floodplain habitats.
Continuous data is classified into 4 classes:
