Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/12424
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dc.contributor.authorBunnefeld, Nils-
dc.contributor.authorReuman, Daniel C-
dc.contributor.authorBaines, David-
dc.contributor.authorMilner-Gulland, Eleanor J-
dc.date.accessioned2013-05-01T23:32:49Z-
dc.date.issued2011-11-
dc.identifier.urihttp://hdl.handle.net/1893/12424-
dc.description.abstract1. The effect of selective exploitation of certain age, stage or sex classes (e.g., trophy hunting) on population dynamics is relatively well studied in fisheries and sexually dimorphic mammals. 2. Harvesting of terrestrial species with no morphological differences visible between the different age and sex classes (monomorphic species) is usually assumed to be nonselective because monomorphicity makes intentionally selective harvesting pointless and impractical. But harvesting of the red grouse (Lagopus lagopus scoticus), a monomorphic species, was recently shown to be unintentionally selective. This study uses a sex- and age-specific model to explore the previously unresearched effects of unintentional harvesting selectivity. 3. We examine the effects of selectivity on red grouse dynamics by considering models with and without selectivity. Our models include territoriality and parasitism, two mechanisms known to be important for grouse dynamics. 4. We show that the unintentional selectivity of harvesting that occurs in red grouse decreases population yield compared with unselective harvesting at high harvest rates. Selectivity also dramatically increases extinction risk at high harvest rates. 5. Selective harvesting strengthens the 3- to 13-year red grouse population cycle, suggesting that the selectivity of harvesting is a previously unappreciated factor contributing to the cycle. 6. The additional extinction risk introduced by harvesting selectivity provides a quantitative justification for typically implemented 20-40% harvest rates, which are below the maximum sustainable yield that could be taken, given the observed population growth rates of red grouse. 7. This study shows the possible broad importance of investigating in future research whether unintentionally selective harvesting occurs on other species.en_UK
dc.language.isoen-
dc.publisherBritish Ecological Society/ Wiley-Blackwell-
dc.relationBunnefeld N, Reuman DC, Baines D & Milner-Gulland EJ (2011) Impact of unintentional selective harvesting on the population dynamics of red grouse, Journal of Animal Ecology, 80 (6), pp. 1258-1268.-
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.-
dc.subjectcycle lengthen_UK
dc.subjectfluctuationsen_UK
dc.subjectmonomorphicen_UK
dc.subjectpopulation modellingen_UK
dc.subjectshootingen_UK
dc.subjectspectrumen_UK
dc.titleImpact of unintentional selective harvesting on the population dynamics of red grouseen_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate2999-12-31T00:00:00Z-
dc.rights.embargoreasonThe publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.-
dc.identifier.doihttp://dx.doi.org/10.1111/j.1365-2656.2011.01862.x-
dc.citation.jtitleJournal of Animal Ecology-
dc.citation.issn0021-8790-
dc.citation.volume80-
dc.citation.issue6-
dc.citation.spage1258-
dc.citation.epage1268-
dc.citation.publicationstatusPublished-
dc.citation.peerreviewedRefereed-
dc.type.statusPublisher version (final published refereed version)-
dc.author.emailnils.bunnefeld@stir.ac.uk-
dc.contributor.affiliationBiological and Environmental Sciences-
dc.contributor.affiliationImperial College London-
dc.contributor.affiliationThe Game and Wildlife Conservation Trust-
dc.contributor.affiliationImperial College London-
dc.rights.embargoterms2999-12-31-
dc.rights.embargoliftdate2999-12-31-
dc.identifier.isi000296452700016-
Appears in Collections:Biological and Environmental Sciences Journal Articles

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