TY - JOUR
T1 - A patch-based spatial modeling approach
T2 - Conceptual framework and simulation scheme
AU - Wu, Jianguo
AU - Levin, Simon Asher
N1 - Funding Information:
We thank erie Loucks, Kirk Moloney, Steve Pacala, Jonathan Dushoff, Danny GriJnbaum and Richard J. Hobbs for discussions and suggestions on the model development. This research was supported by a Computational Research Associateship from the National Science Foundation (ASC-9108790) and grants from the Andrew W. Mellon Foundation and the National Aeronautics and Space Administration (NAGW-3124). The preparation of this paper was in part supported through a USDA grant (95-37101-2028) and an ASU FGIA grant (HBRH044).
Copyright:
Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
PY - 1997/8/15
Y1 - 1997/8/15
N2 - Patchiness is ubiquitous across a wide range of scales, and spatial pattern and ecological processes are interdependent and interactive. However, traditional approaches have not been able to incorporate spatial patchiness and pattern-process interactions into modeling frameworks because of their assumptions of homogeneity, equilibrium and determinism. Recently, different modeling approaches have been developed to take into account of spatial heterogeneity and its effects on ecological processes. In this paper, we present a conceptual framework and simulation scheme for a spatially explicit patch dynamic modelling approach. The model structure consists primarily of two submodels: a spatially-explicit, age-/size-structured patch demographic model and a multi-specific population dynamic model. We demonstrate the modeling approach through an example, and also present alternative formulations and algorithms for implementing different parts of the model. While most existing spatial models are grid-based, the patch-based spatial modeling approach provides a unique, alternative way of studying pattern and process in ecological systems.
AB - Patchiness is ubiquitous across a wide range of scales, and spatial pattern and ecological processes are interdependent and interactive. However, traditional approaches have not been able to incorporate spatial patchiness and pattern-process interactions into modeling frameworks because of their assumptions of homogeneity, equilibrium and determinism. Recently, different modeling approaches have been developed to take into account of spatial heterogeneity and its effects on ecological processes. In this paper, we present a conceptual framework and simulation scheme for a spatially explicit patch dynamic modelling approach. The model structure consists primarily of two submodels: a spatially-explicit, age-/size-structured patch demographic model and a multi-specific population dynamic model. We demonstrate the modeling approach through an example, and also present alternative formulations and algorithms for implementing different parts of the model. While most existing spatial models are grid-based, the patch-based spatial modeling approach provides a unique, alternative way of studying pattern and process in ecological systems.
KW - Framework
KW - Simulation scheme
KW - Spatial modeling
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U2 - 10.1016/S0304-3800(97)00056-2
DO - 10.1016/S0304-3800(97)00056-2
M3 - Article
AN - SCOPUS:0030791601
SN - 0304-3800
VL - 101
SP - 325
EP - 346
JO - Ecological Modelling
JF - Ecological Modelling
IS - 2-3
ER -