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dc.contributor.authorBunnefeld, Nilsen_UK
dc.contributor.authorBaines, Daviden_UK
dc.contributor.authorNewborn, Daviden_UK
dc.contributor.authorMilner-Gulland, Eleanor Jen_UK
dc.description.abstract1. Changes in the abundance of populations have always perplexed ecologists but long-term studies are revealing new insights into population dynamic processes. Long-term data are often derived from harvest records although many wild populations face high harvesting pressures leading to overharvesting and extinction. Additionally, harvest records used to describe population processes such as fluctuations in abundance and reproductive success often assume a random off-take. 2. Selective harvesting based on phenotypic characteristics occurs in many species (e.g. trophy hunting, fisheries) and has important implications for population dynamics, conservation and management. 3. In species with no marked morphological differences between the age and sex classes, such as the red grouse Lagopus lagopus scoticus during the shooting season, hunters cannot consciously select for a specific sex or age class during the shooting process but harvest records could still give a biased reflection of the population structure because of differences in behaviour between age and sex classes. 4. This study compared age and sex ratios in the bag with those in the population before shooting for red grouse at different points in the shooting season and different densities, which has rarely been tested before. 5. More young than old grouse were shot at large bag sizes and vice versa for small bag sizes than would be expected from the population composition before shooting. The susceptibility of old males to shooting compared to females increased with bag size and was high at the first time the area was shot but decreased with the number of times an area was harvested. 6. These findings stress that the assumption made in many studies that harvest records reflect the age and sex ratio of the population and therefore reflect productivity can be misleading. 7. In this paper, as in the literature, it is also shown that number of grouse shot reflects grouse density and therefore that hunting selectivity might influence population dynamics in a cyclic species. 8. The study is not only relevant for red grouse but applies to systems showing interactions between selective harvesting and wider ecological processes, such as age- and sex-related parasitism and territoriality, which may drive population fluctuations.en_UK
dc.publisherBritish Ecological Society/ Wiley-Blackwellen_UK
dc.relationBunnefeld N, Baines D, Newborn D & Milner-Gulland EJ (2009) Factors affecting unintentional harvesting selectivity in a monomorphic species. Journal of Animal Ecology, 78 (2), pp. 485-492.
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.en_UK
dc.subjecthunting susceptibilityen_UK
dc.subjectpopulation fluctuationsen_UK
dc.subjectred grouse Lagopus lagopus scoticusen_UK
dc.subjectsex ratioen_UK
dc.titleFactors affecting unintentional harvesting selectivity in a monomorphic speciesen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[Bunnefeld JAnimEcol 2009.pdf] The 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.en_UK
dc.citation.jtitleJournal of Animal Ecologyen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationThe Game and Wildlife Conservation Trusten_UK
dc.contributor.affiliationGame Conservancy Trusten_UK
dc.contributor.affiliationImperial College Londonen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorBunnefeld, Nils|0000-0002-1349-4463en_UK
local.rioxx.authorBaines, David|en_UK
local.rioxx.authorNewborn, David|en_UK
local.rioxx.authorMilner-Gulland, Eleanor J|en_UK
local.rioxx.projectInternal Project|University of Stirling|
local.rioxx.filenameBunnefeld JAnimEcol 2009.pdfen_UK
Appears in Collections:Biological and Environmental Sciences Journal Articles

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