Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/3403
Title: Applying search theory to determine the feasibility of eradicating an invasive population in natural environments
Contributor(s): Cacho, Oscar Jose  (author)orcid ; Hester, Susan  (author); Spring, Daniel (author)
Publication Date: 2007
DOI: 10.1111/j.1467-8489.2007.00389.x
Handle Link: https://hdl.handle.net/1959.11/3403
Abstract: The detectability of invasive organisms influences the feasibility of eradicating an infestation. Search theory offers a framework for defining and measuring detectability, taking account of searcher ability, biological factors and the search environment. In this paper, search theory concepts are incorporated into a population model, and the costs of search and control are calculated as functions of the amount of search effort (the decision variable). Simulations are performed on a set of weed scenarios in a natural environment, involving different combinations of plant longevity, seed longevity and plant fecundity. Results provide preliminary estimates of the cost and duration of eradication programs to assist in prioritising weeds for control. The analysis shows that the success of an eradication program depends critically on the detectability of the target plant, the effectiveness of the control method, the labour requirements for search and control, and the germination rate of the plant.
Publication Type: Journal Article
Source of Publication: The Australian Journal of Agricultural and Resource Economics, 51(4), p. 425-443
Publisher: Blackwell Publishing Asia
Place of Publication: Melbourne, VIC, Australia
ISSN: 1364-985X
Field of Research (FOR): 140205 Environment and Resource Economics
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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