Bioeconomics of managing the spread of exotic pest species with barrier zones

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dc.contributor.authorSharov, A. A.en
dc.contributor.authorLiebhold, A. M.en
dc.contributor.departmentEntomologyen
dc.date.accessed2014-03-11en
dc.date.accessioned2014-03-27T13:06:07Zen
dc.date.available2014-03-27T13:06:07Zen
dc.date.issued1998-08en
dc.description.abstractExotic pests are serious threats to North American ecosystems; thus, economic analysis of decisions about eradication, stopping, or slowing their spread may be critical to ecosystem management. We present a model to analyze costs and benefits of altering the spread rates of invading organisms. The target rate of population expansion (which may be positive or negative) is considered as a control function, and the present value of net benefits from managing population spread is the criterion that is maximized. Two local maxima of the present value of net benefits are possible: one for eradication and another for slowing the spread. If both maxima are present, their heights are compared, and the strategy that corresponds to a higher value is selected. The optimal strategy changes from eradication to slowing the spread to finally doing nothing, as the area occupied by the species increases, the negative impact of the pest per unit area decreases, or the discount rate increases. The model shows that slowing population spread is a viable strategy of pest control even when a relatively small area remains uninfested. Stopping population spread is not an optimal strategy unless natural barriers to population spread exist. The model is applied to managing the spread of gypsy moth (Lymantria dispar) populations in the United States.en
dc.description.sponsorshipUSDA Cooperative State Research, Education, and Extension Service Grant Number 95-37313-1892en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationAlexei A. Sharov and Andrew M. Liebhold 1998. Bioeconomics of managing the spread of exotic pest species with barrier zones. Ecological Applications 8:833-845. http://dx.doi.org/10.1890/1051-0761(1998)008[0833:BOMTSO]2.0.CO;2en
dc.identifier.doihttps://doi.org/10.2307/2641270en
dc.identifier.issn1051-0761en
dc.identifier.urihttp://hdl.handle.net/10919/46851en
dc.identifier.urlhttp://www.esajournals.org/doi/pdf/10.1890/1051-0761%281998%29008%5B0833%3ABOMTSO%5D2.0.CO%3B2en
dc.language.isoenen
dc.publisherEcological Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectbarrier zoneen
dc.subjectbioeconomicsen
dc.subjectbiological invasionen
dc.subjectcost-benefit modelen
dc.subjecteradicationen
dc.subjectexotic speciesen
dc.subjectgypsy mothen
dc.subjectlymantria disparen
dc.subjectpest controlen
dc.subjectspread rateen
dc.subjectgypsy-mothen
dc.subjectdynamicsen
dc.titleBioeconomics of managing the spread of exotic pest species with barrier zonesen
dc.title.serialEcological Applicationsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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