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The geometric mean of relative abundance indices : a biodiversity measure with a difference
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dc.contributor.author | Buckland, Stephen Terrence | |
dc.contributor.author | Studeny, Angelika Caroline | |
dc.contributor.author | Magurran, Anne | |
dc.contributor.author | Illian, Janine Baerbel | |
dc.contributor.author | Newson, Stuart | |
dc.date.accessioned | 2012-12-19T11:01:02Z | |
dc.date.available | 2012-12-19T11:01:02Z | |
dc.date.issued | 2011-09-02 | |
dc.identifier.citation | Buckland , S T , Studeny , A C , Magurran , A , Illian , J B & Newson , S 2011 , ' The geometric mean of relative abundance indices : a biodiversity measure with a difference ' , Ecosphere , vol. 2 , no. 9 , 100 . https://doi.org/10.1890/ES11-00186.1 | en |
dc.identifier.issn | 2150-8925 | |
dc.identifier.other | PURE: 13665977 | |
dc.identifier.other | PURE UUID: 056e5f4d-e8c7-4e93-beaa-a77a7a745d91 | |
dc.identifier.other | ORCID: /0000-0002-0036-2795/work/43550221 | |
dc.identifier.other | ORCID: /0000-0002-9939-709X/work/73701001 | |
dc.identifier.uri | https://hdl.handle.net/10023/3310 | |
dc.description | This work is partly supported by the European Research Council | en |
dc.description.abstract | The 2010 Biodiversity Target of the Convention on Biological Diversity (CBD), set in 2002, which stated that there should be ‘a significant reduction of the current rate of biodiversity loss' by 2010, highlighted the need for informative and tractable metrics that can be used to evaluate change in biological diversity. While the subsequent Aichi 2020 targets are more wide-ranging, they also seek to reduce the rate of biodiversity loss. The geometric mean of relative abundance indices, G, is increasingly being used to examine trends in biological diversity and to assess whether biodiversity targets are being met. Here, we explore the mathematical and statistical properties of G that make it useful for judging temporal change in biological diversity, and we discuss its advantages and limitations relative to other measures. We demonstrate that the index reflects trends in both abundance and evenness, and that it is not prone to bias when detectability of individuals varies by species. We note that it allows data from different surveys to be combined to generate a composite index. However, the index exhibits high variance and unstable behaviour when rarely-recorded species are included in the analyses. Read More: http://www.esajournals.org/doi/abs/10.1890/ES11-00186.1 | |
dc.format.extent | 15 | |
dc.language.iso | eng | |
dc.relation.ispartof | Ecosphere | en |
dc.rights | Copyright (c) 2011 the authors, published under the terms of the Creative Commons Attribution License, which permits restricted use, distribution, and reproduction in any medium, provided the original author and sources are credited. Available from http://www.esajournals.org | en |
dc.subject | Biodiversity measure | en |
dc.subject | Evenness | en |
dc.subject | Geometric mean | en |
dc.subject | Relative abundance | en |
dc.subject | 2010 Biodiversity Target | en |
dc.subject | 2020 Aichi Biodiversity Targets | en |
dc.subject | QL Zoology | en |
dc.subject | QA Mathematics | en |
dc.subject.lcc | QL | en |
dc.subject.lcc | QA | en |
dc.title | The geometric mean of relative abundance indices : a biodiversity measure with a difference | en |
dc.type | Journal article | en |
dc.description.version | Publisher PDF | en |
dc.contributor.institution | University of St Andrews. Scottish Oceans Institute | en |
dc.contributor.institution | University of St Andrews. Centre for Research into Ecological & Environmental Modelling | en |
dc.contributor.institution | University of St Andrews. School of Mathematics and Statistics | en |
dc.contributor.institution | University of St Andrews. St Andrews Sustainability Institute | en |
dc.contributor.institution | University of St Andrews. School of Biology | en |
dc.contributor.institution | University of St Andrews. Institute of Behavioural and Neural Sciences | en |
dc.contributor.institution | University of St Andrews. Fish Behaviour and Biodiversity Research Group | en |
dc.contributor.institution | University of St Andrews. Marine Alliance for Science & Technology Scotland | en |
dc.contributor.institution | University of St Andrews. Centre for Biological Diversity | en |
dc.identifier.doi | https://doi.org/10.1890/ES11-00186.1 | |
dc.description.status | Peer reviewed | en |
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