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Type: Journal article
Title: Using Cox's proportional hazard models to implement optimal strategies: An example from behavioural ecology
Author: Tenhumberg, B.
Keller, M.
Possingham, H.
Citation: Mathematical and Computer Modelling, 2001; 33(06-Jul):597-607
Publisher: Pergamon-Elsevier Science Ltd
Issue Date: 2001
ISSN: 0895-7177
Abstract: Simple behavioural rules, or “rules of thumb”, which lead to behaviour that closely approximates an optimal strategy, have generated a lot of recent interest in the field of foraging behaviour. In this paper, we derive rules of thumb from a stochastic simulation model in which the foragers behave optimally. We use a particular biological system: the patch leaving behaviour of a parasitoid. We simulate parasitoids whose patch leaving behaviour is determined by a stochastic dynamic programming (SDP) model, while allowing parasitoids to make mistakes in their estimation of host density when arriving in a patch. We use Cox's proportional hazards models to obtain statistical rules of thumb from the simulated behaviour. This represents the first use of a proportional hazard approximation to generate rules of thumb from a complex optimal strategy.
Keywords: Rules of thumb; SDP model; Cox's proportional hazards model; Optimal strategies
RMID: 0020010055
DOI: 10.1016/S0895-7177(00)00264-8
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Appears in Collections:Agriculture, Food and Wine publications

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