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Updated: Jul 24, 2026

Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling
Published on: July 4, 2007
A hierarchical matrix model to assess the impact of habitat fragmentation on population dynamics: an elasticity
Jean-Baptiste Pichancourt1, Françoise Burel, Pierre Auger
1UMR ECOBIO CNRS, université Rennes-1, bât. 14b, campus de Beaulieu, 35042 Rennes cedex, France. jean-baptiste.pichancourt@univ-rennes1.fr
Abstract:
To better understand the role of habitat quality and boundaries on population dynamics at the landscape scale, we develop a model combining a spatially implicit approach, a spatial population Leslie-type model and an implicit model of habitat fragmentation. An original approach of elasticity permits to identify which types of element and boundary influence the most population viability according to the wood fragmentation degree. The studied species is a corridor forest insect sensitive to fragmentation (Abax parallelepipedus, Coleoptera, Carabidae). We show that a single large patch of wood is better than several small patches for the population viability.
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