Programs and Tools

Linkage Mapper 2020-01-23T13:48:31-05:00

Linkage Mapper

Linkage Mapper uses GIS maps of core habitat areas and resistances to identify and map linkages between core areas. It identifies adjacent (neighboring) core areas and creates maps of least-cost corridors between them. It then mosaics the individual corridors to create a single composite corridor map.  It includes a suite of tools that can be used for specific tasks, such as adjusting for climate or identifying pinch points.

About Linkage Mapper
Website circuitscape.org/linkagemapper
Author(s) Washington Wildlife Habitat Connectivity Working Group

Lead Author John Gallo (Founding Author Brad McRae)

Published 2010, Version 2.0 in 2018
Compatible with ArcGIS
User Forum User Forum
User Guide User Guides (updated January 2018)
Compatible OS Windows, Mac
Most Useful for
  • Calculating single composite corridors between core areas
  • Identifying pinch-points (by combining with Circuitscape via Pinchpoint Mapper)
  • Detecting barriers to facilitate restoration planning (via Barrier Mapper)
  • Mapping corridors along climatic gradients (via Climate Linkage Mapper)
  • Analyzing linkage networks by calculating centrality (via Centrality Mapper)
  • Quantifying relative conservation priority of linkages (via Linkage Priority Tool)
  • Synthesis of the above outputs (via the “Multi-Tool Combinations” toolbox or ArcGIS modelbuilder)
Data Requirements
  • Core habitat areas layer (raster)
  • Resistance layer (raster)

Figures and Examples

Linkage Mapper synthesis

From Gallo, JA, J Strittholt, G Joseph, H Rustigian-Romsos, R Degagne, J Brice, and A Prisbrey. 2019. Mapping Habitat Connectivity Priority Areas that are Climate-wise and Multi-scale, for Three Regions of California. Conservation Biology Institute.

From McRae BH, SA Hall, P Beier, and DM Theobald. 2012. Where to restore ecological connectivity? Detecting barriers and quantifying restoration benefits. PLoS ONE. DOI: 10.1371/journal.pone.0052604.

From McRae BH, SA Hall, P Beier, and DM Theobald. 2012. Where to restore ecological connectivity? Detecting barriers and quantifying restoration benefits. PLoS ONE 7(12): e52604.