Journal
JOURNAL OF THEORETICAL BIOLOGY
Volume 310, Issue -, Pages 231-238Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jtbi.2012.06.033
Keywords
Stochastic model; Invasion; Control; Spatial model
Categories
Funding
- NZIMA
- University of York pump-priming funds
- University of Canterbury Erskine Fellowship
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Understanding the persistence and growth of natural populations in environments subject to random localised change is relevant both to the conservation of threatened species and to the control of invasive species. By developing and analysing simple strategic growth models in environments subject to random fragmentation events, we show that simple approximations can be used to predict invasion speeds and extinction probabilities. The rate and size of fragmentation events interact in a nonlinear way, a finding with important consequences for the efficient control of invasive species. Infrequent, large-scale fragmentation events provide more effective means of control than more frequent, smaller scale efforts. (c) 2012 Elsevier Ltd. All rights reserved.
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