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Overview

BioDispersal is a QGIS 3 plugin.

Its purpose is to compute ecological continuities based on environments permeability and animals potential dispersal areas. BioDispersal has been designed as a 7-steps plugin from raw data preprocessing to the final dispersal areas computation. Parameters settings can be saved to and loaded from a configuration file.

Below is an example of dispersal map created by BioDispersal:

BioDispersal has been developped by UMR TETIS - IRSTEA, on mission for the French ecological network resource center (driven by French ministry of ecology).

Contact

Development : Mathieu Chailloux (mathieu@chailloux.org)

Coordination : Jennifer Amsallem (jennifer.amsallem@irstea.fr)

Quotation

Chailloux, M. & Amsallem, J. (2018) BioDispersal : a QGIS plugin for modelling potential dispersal areas

Installation

BioDispersal requires QGIS 3.4 (or superior version) and GRASS.

Go to plugins menu, Install/manage plugins, type BioDispersal and click on Install button. A dear icon should appear. Otherwise, it is available in plugins menu.

Documentation

Available documentation:

• Video tutorials
• User guide
• Patch qualification (only in french)
• Modelling method description (only in french)

Sample data

Sample data is provided with plugin (directory sample_data/BousquetOrb).

To produce above dispersal map, open configuration file BousquetOrb.xml and run steps 3,4,5,6,7.

Steps

BioDispersal is a 7 steps plugin:

1. Parameters setting
2. Subnetworks definition
3. Selection and classification from input data
4. Data ranking to obtain a complete land use layer for each subnetwork
5. Friction coefficients definition to obtain a permeability layer for each subnetwork
6. Weighting of permeability layers if needed (optional step)
7. Dispersal areas computation

Each step is detailed in plugin help panel.

Links

• BioDispersal homepage
• BioDispersal git repository
• IRSTEA
• UMR TETIS
• French ecological network resource center
• French ministry of ecology