Using fluid dynamic concepts to estimate species movement rates in terrestrial landscapes

Jones, T.J.; Watts, K.; Whytock, R.C.

Abstract

Habitat loss and fragmentation threatens biodiversity and ecosystem function. ‘Permeability’ and ‘connectivity’ indices are used to estimate how individuals, populations or genes move spatially through a landscape. Yet, despite the analogies between landscape permeability and the physical definition of permeability (the ability for a porous media to transport a fluid), there have been few attempts to apply the physical concepts of permeability and fluid flow to problems in landscape movement ecology beyond some simple examples in the early literature. Here, we present a conceptual model linking physical principles to ecological terms and illustrate how concepts from Darcy’s Law of fluid flow through porous media could be used to quantify species movement rates through a heterogeneous terrestrial landscape. Although further refinement is needed to take this concept to two dimensions and into a full predictive model, the approach presented shows promise for quantifying the relative impacts of landscape change (e.g. habitat fragmentation or creation) on species movement rates.

Citation

Jones, T., Watts, K., & Whytock, R. (2018). Using fluid dynamic concepts to estimate species movement rates in terrestrial landscapes. Ecological Indicators, 93, 344-350. https://doi.org/10.1016/j.ecolind.2018.05.005

• Journal Article Type: Article
• Acceptance Date: May 2, 2018
• Online Publication Date: May 21, 2018
• Publication Date: Oct 1, 2018
• Deposit Date: May 3, 2018
• Publicly Available Date: May 22, 2018
• Journal: Ecological Indicators
• Print ISSN: 1470-160X
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 93
• Pages: 344-350
• DOI: https://doi.org/10.1016/j.ecolind.2018.05.005
• Public URL: https://durham-repository.worktribe.com/output/1332488