Please use this identifier to cite or link to this item: http://hdl.handle.net/10321/2334
Title: Consumption threshold used to investigate stability and ecological dominance in consumer-resource dynamics
Authors: Collins, Obiora Cornelius 
Duffy, Kevin Jan 
Keywords: Wildlife modelling;Herbivory;Simulation;Stability;Hopf bifurcation
Issue Date: 2015
Publisher: Elsevier
Source: Collins, O.C. and Duffy, K.J. 2015. Consumption threshold used to investigate stability and ecological dominance in consumer-resource dynamics. Ecological Modelling. 319: 155–162.
Abstract: Understanding consumer resource population dynamics can be important to an understanding of the overall ecology of systems. For example, the tree-grass continuum dynamics of savannas, an important ecological biome, is influenced by the population dynamics. Here we investigate herbivory driven popu-lation dynamics of a savanna using a simple model of the interactions of the dominant players, namely: trees, grasses, browsers, grazers and mixed browsers-grazers. We introduce a consumption threshold that summarises some of the parameters and this is used as a guide to understanding the dynamics. This number is used in investigating system stability and sensitivity to parameter fluctuations. It is also used to identify degrees of ecological dominance.
URI: http://hdl.handle.net/10321/2334
ISSN: 0304-3800 (print)
1872-7026 (online)
Appears in Collections:Research Publications (Systems Science)

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