Keywords
landscape fragmentation, population dynamics, spatio-temporal markov chain approximation
Start Date
1-7-2004 12:00 AM
Abstract
The aim of this paper is to provide a mathematical model for assessing the influence of forest fragmentation on the dynamics of animal biodiversity in a changing landscape. The model is based on a stochastic, spatially explicit population dynamics model which takes both temporal and spatial dynamics of biological processes into account. Unfortunately, this model is not tractable, so we will use a Monte Carlo simulation method in order to approximate the multidimensional random variables involved. The main strength of our approach is its ability to model generic biological and socio-economic dynamic processes, which are both explicitly spatial and stochastic. In order to demonstrate the usefulness of our biodiversity dynamics modeling tool we use available spatial data on the presence/absence of Erithacus Rubecula (robin) at different time points in the “Vallée de la Nère”, an area of fragmented forest located in the southwest of France, near Toulouse.
Towards an Environmental DSS based on Spatio-Temporal Markov Chain Approximation
The aim of this paper is to provide a mathematical model for assessing the influence of forest fragmentation on the dynamics of animal biodiversity in a changing landscape. The model is based on a stochastic, spatially explicit population dynamics model which takes both temporal and spatial dynamics of biological processes into account. Unfortunately, this model is not tractable, so we will use a Monte Carlo simulation method in order to approximate the multidimensional random variables involved. The main strength of our approach is its ability to model generic biological and socio-economic dynamic processes, which are both explicitly spatial and stochastic. In order to demonstrate the usefulness of our biodiversity dynamics modeling tool we use available spatial data on the presence/absence of Erithacus Rubecula (robin) at different time points in the “Vallée de la Nère”, an area of fragmented forest located in the southwest of France, near Toulouse.
