2 documents found, page 1 of 1
Measuring trends in extinction risk: a review of two decades of development and...
Butchart, Stuart H. M.; Akçakaya, H. Resit; Berryman, Alex J.; Brooks, Thomas M.; Burfield, Ian J.; Chanson, Janice; Dias, Maria P.; Donaldson, John S.The Red List Index (RLI) is an indicator of the average extinction risk of groups of species and reflects trends in this through time. It is calculated from the number of species in each category on the IUCN Red List of Threatened Species, with trends influenced by the number moving between categories when reassessed owing to genuine improvement or deterioration in status. The global RLI is aggregated across mu...
Testing a global standard for quantifying species recovery and assessing conser...
Grace, Molly K.; Akçakaya, H. Resit; Bennett, Elizabeth L.; Brooks, Thomas M.; Heath, Anna; Hedges, Simon; Hilton‐Taylor, Craig; Hoffmann, MichaelRecognizing the imperative to evaluate species recovery and conservation impact, in 2012 the International Union for Conservation of Nature (IUCN) called for development of a "Green List of Species" (now the IUCN Green Status of Species). A draft Green Status framework for assessing species' progress toward recovery, published in 2018, proposed 2 separate but interlinked components: a standardized method (i.e.,...