Catastrophe management and inter-reserve distance for marine reserve networks
Date
2007
Authors
Wagner, L.
Ross, J.
Possingham, H.
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Journal article
Citation
Ecological Modelling, 2007; 201(1):82-88
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L.D. Wagner, J.V. Ross, H.P. Possingham
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Abstract
We consider the optimal spacing between marine reserves for maximising the viability of a species occupying a reserve network. The closer the networks are placed together, the higher the probability of colonisation of an empty reserve by an occupied reserve, thus increasing population viability. However, the closer the networks are placed together, the higher the probability that a catastrophe will cause extinction of the species in both reserves, thus decreasing population viability. Using a simple discrete-time Markov chain model for the presence or absence of the species in each reserve we determine the distance between the two reserves which provides the optimal trade-off between these processes, resulting in maximum viability of the species.
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Copyright © 2006 Elsevier B.V. All rights reserved.