Show simple item record

dc.contributor.authorChauvenet, Alienor LM
dc.contributor.authorBaxter, Peter WJ
dc.contributor.authorMcDonald-Madden, Eve
dc.contributor.authorPossingham, Hugh P
dc.date.accessioned2021-09-13T05:34:32Z
dc.date.available2021-09-13T05:34:32Z
dc.date.issued2010
dc.identifier.issn1051-0761
dc.identifier.doi10.1890/08-1749.1
dc.identifier.urihttp://hdl.handle.net/10072/407902
dc.description.abstractMoney is often a limiting factor in conservation, and attempting to conserve endangered species can be costly. Consequently, a framework for optimizing fiscally constrained conservation decisions for a single species is needed. In this paper we find the optimal budget allocation among isolated subpopulations of a threatened species to minimize local extinction probability. We solve the problem using stochastic dynamic programming, derive a useful and simple alternative guideline for allocating funds, and test its performance using forward simulation. The model considers subpopulations that persist in habitat patches of differing quality, which in our model is reflected in different relationships between money invested and extinction risk. We discover that, in most cases, subpopulations that are less efficient to manage should receive more money than those that are more efficient to manage, due to higher investment needed to reduce extinction risk. Our simple investment guideline performs almost as well as the exact optimal strategy. We illustrate our approach with a case study of the management of the Sumatran tiger, Panthera tigris sumatrae, in Kerinci Seblat National Park (KSNP), Indonesia. We find that different budgets should be allocated to the separate tiger subpopulations in KSNP. The subpopulation that is not at risk of extinction does not require any management investment. Based on the combination of risks of extinction and habitat quality, the optimal allocation for these particular tiger subpopulations is an unusual case: subpopulations that occur in higher-quality habitat (more efficient to manage) should receive more funds than the remaining subpopulation that is in lower-quality habitat. Because the yearly budget allocated to the KSNP for tiger conservation is small, to guarantee the persistence of all the subpopulations that are currently under threat we need to prioritize those that are easier to save. When allocating resources among subpopulations of a threatened species, the combined effects of differences in habitat quality, cost of action, and current subpopulation probability of extinction need to be integrated. We provide a useful guideline for allocating resources among isolated subpopulations of any threatened species. © 2010 by the Ecological Society of America.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherWiley
dc.relation.ispartofpagefrom789
dc.relation.ispartofpageto797
dc.relation.ispartofissue3
dc.relation.ispartofjournalEcological Applications
dc.relation.ispartofvolume20
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchEnvironmental management
dc.subject.fieldofresearchEnvironmental sciences
dc.subject.fieldofresearchBiological sciences
dc.subject.fieldofresearchAgricultural, veterinary and food sciences
dc.subject.fieldofresearchcode3103
dc.subject.fieldofresearchcode4104
dc.subject.fieldofresearchcode41
dc.subject.fieldofresearchcode31
dc.subject.fieldofresearchcode30
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsEnvironmental Sciences
dc.titleOptimal allocation of conservation effort among subpopulations of a threatened species: How important is patch quality?
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationChauvenet, ALM; Baxter, PWJ; McDonald-Madden, E; Possingham, HP, Optimal allocation of conservation effort among subpopulations of a threatened species: How important is patch quality?, Ecological Applications, 2010, 20 (3), pp. 789-797
dc.date.updated2021-09-13T00:11:34Z
gro.hasfulltextNo Full Text
gro.griffith.authorChauvenet, Ali


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record