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UNICOR: a species connectivity and corridor network simulator

Posted date: May 24, 2012
Publication Year: 
2012
Authors: Landguth, E. L.; Hand, B. K.; Glassy, J.; Cushman, Samuel A.; Sawaya, M. A.
Publication Series: 
Scientific Journal (JRNL)
Source: Ecography. 35: 9-14.

Abstract

We introduce UNIversal CORridor network simulator (UNICOR), a species connectivity and corridor identifi cation tool. UNICOR applies Dijkstra's shortest path algorithm to individual-based simulations. Outputs can be used to designate movement corridors, identify isolated populations, and prioritize conservation plans to promote species persistence. The key features include a driver-module framework, connectivity mapping with thresholding and buffering, and calculation of graph theory metrics. Through parallel-processing, computational efficiency is greatly improved, allowing analyses of large extents and entire populations. Previously available approaches are limited by prolonged computational times and poor algorithmic efficiency, restricting problem-size and requiring artificial subsampling of populations.

Citation

Landguth, E. L.; Hand, B. K.; Glassy, J.; Cushman, S. A.; Sawaya, M. A. 2012. UNICOR: a species connectivity and corridor network simulator. Ecography. 35: 9-14.