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Appears in Collections:Computing Science and Mathematics Journal Articles
Peer Review Status: Refereed
Title: The effects of invasive pests and pathogens on strategies for forest diversification
Author(s): Macpherson, Morag
Kleczkowski, Adam
Healey, John
Quine, Christopher P
Hanley, Nick
Keywords: Bioeconomic modelling
Forest management
Natural resource management
Tree pests and pathogens
Tree species diversification
Issue Date: 24-Apr-2017
Citation: Macpherson M, Kleczkowski A, Healey J, Quine CP & Hanley N (2017) The effects of invasive pests and pathogens on strategies for forest diversification, Ecological Modelling, 350, pp. 87-99.
Abstract: Diversification of the tree species composition of production forests is a frequently advocated strategy to increase resilience to pests and pathogens; however, there is a lack of a general framework to analyse the impact of economic and biological conditions on the optimal planting strategy in the presence of tree disease. To meet this need we use a novel bioeconomic model to quantitatively assess the effect oftree disease on the optimal planting proportion of two tree species. We find that diversifying the species composition can reduce the economic loss from disease even when the benefit from the resistant speciesis small. However, this key result is sensitive to a pathogen’s characteristics (probability of arrival, timeof arrival, rate of spread of infection) and the losses (damage of the disease to the susceptible species and reduced benefit of planting the resistant species). This study provides an exemplar framework which can be used to help understand the effect of a pathogen on forest management strategies.
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