Butchart, SH;
Resit Akçakaya, H;
Chanson, J;
Baillie, JE;
Collen, B;
Quader, S;
Turner, WR;
... Hilton-Taylor, C; + view all
(2007)
Improvements to the Red List Index.
PLoS One
, 2
(1)
, Article e140. 10.1371/journal.pone.0000140.
![[thumbnail of journal.pone.0000140.pdf]](https://discovery.ucl.ac.uk/style/images/fileicons/application_pdf.png) Preview |
PDF
journal.pone.0000140.pdf Download (223kB) |
Abstract
The Red List Index uses information from the IUCN Red List to track trends in the projected overall extinction risk of sets of species. It has been widely recognised as an important component of the suite of indicators needed to measure progress towards the international target of significantly reducing the rate of biodiversity loss by 2010. However, further application of the RLI (to non-avian taxa in particular) has revealed some shortcomings in the original formula and approach: It performs inappropriately when a value of zero is reached; RLI values are affected by the frequency of assessments; and newly evaluated species may introduce bias. Here we propose a revision to the formula, and recommend how it should be applied in order to overcome these shortcomings. Two additional advantages of the revisions are that assessment errors are not propagated through time, and the overall level extinction risk can be determined as well as trends in this over time.
| Type: | Article |
|---|---|
| Title: | Improvements to the Red List Index. |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1371/journal.pone.0000140 |
| Publisher version: | http://dx.doi.org/10.1371/journal.pone.0000140 |
| Language: | English |
| Additional information: | © 2007 Butchart et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. PMCID: PMC1764037 |
| Keywords: | Abstracting and Indexing as Topic, Animals, Animals, Wild, Biodiversity, Birds, Conservation of Natural Resources, Databases, Factual, Extinction, Biological, Models, Statistical, Phylogeny |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Genetics, Evolution and Environment |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1390117 |
Archive Staff Only
 |
View Item |
