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Title: Geospatial suitability indices (GSI) toolbox : user's guide
Authors: Saltus, Christina L.
McKay, S. Kyle.
Swannack, Todd M.
Keywords: Environmental management
Ecology--Mathematical models
Habitat suitability index models
Geospatial data
Geographic information systems
Publisher: Engineer Research and Development Center (U.S.)
Series/Report no.: Special Report (Engineer Research and Development Center (U.S.));no. ERDC/EL SR-22-4
Abstract: Habitat suitability models have been widely adopted in ecosystem management and restoration to assess environmental impacts and benefits according to the quantity and quality of a given habitat. Many spatially distributed ecological processes require application of suitability models within a geographic information system (GIS). This technical report presents a geospatial toolbox for assessing habitat suitability. The geospatial suitability indices (GSI) toolbox was developed in ArcGIS Pro 2.7 using the Python 3.7 programming language and is available for use on the local desktop in the Windows 10 environment. Two main tools comprise the GSI toolbox. First, the suitability index (SIC) calculator tool uses thematic or continuous geospatial raster layers to calculate parameter suitability indices using user-specified habitat relationships. Second, the overall suitability index calculator (OSIC) combines multiple parameter suitability indices into one overarching index using one or more options, including arithmetic mean, weighted arithmetic mean, geometric mean, and minimum limiting factor. The result is a raster layer representing habitat suitability values from 0.0–1.0, where zero (0) is unsuitable habitat and one (1) is ideal suitability. This report documents the model purpose and development and provides a user’s guide for the GSI toolbox.
Description: Special Report
NOTE: The GSI Toolbox is available for download at
Gov't Doc #: ERDC/EL SR-22-4
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Special Report

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