Terme préférentiel
A.4 Proportion of populations within species with an effective population size greater than 500
Type
- Indicator
Définition
- The indicator, “The proportion of populations within species with a genetically effective population size > 500.” is calculated by taking each population (or breed) of a species, determining if each population is above the threshold of Ne 500, calculating a proportion of populations above the threshold for each species, and then taking a mean of these proportions across all species examined, as explained in Hoban et al. (2023b) and Hoban et al. 2023c. As a proportion it ranges from 0 to 1, with 1 as the desired value. As explained in Hoban et al. (2023b) which contains the basic equations for calculation, the indicator can be weighted by taxonomic groups or other categories to offset any biases in the species selected (e.g. due to having more birds, more rare species etc.).
Source
- https://www.cbd.int/doc/decisions/cop-16/cop-16-dec-31-en.pdf
Traductions
URI
http://metadata.cbd.int/kmgbf/indicator_A.4