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

Jones, T.J. and Watts, K. and Whytock, R.C. (2018) Using fluid dynamic concepts to estimate species movement rates in terrestrial landscapes. Ecological Indicators, 93. pp. 344-350. ISSN 1470-160X

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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.

Item Type:
Journal Article
Journal or Publication Title:
Ecological Indicators
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1800
Subjects:
ID Code:
176258
Deposited By:
Deposited On:
06 Oct 2022 13:50
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Nov 2022 11:50