Metadata Sub-indicator 15.5.1.6. Red List Index (mammals)

Goal 15. Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss

Target 15.5. Take urgent and significant action to reduce the degradation of natural habitats, halt the loss of biodiversity and, by 2020, protect and prevent the extinction of threatened species

Indicator 15.5.1. Red List Index

Sub-indicator 15.5.1.6. Red List Index (mammals)

• Global
• National

The indicator measures theoretically and aggregately how far from extinction are mammal species present in Spain.

$$RL{I}^t=1-\frac{\sum _i^n{S}_i\cdot W_i}{N\cdot W_{EX}}$$Where: $S_{i}t$is the number of species for category i, $w_i$is the weight of category i (1 for ¿almost threatened¿ up to 5 ¿Extinct¿), \N\) is the total number of species considered and $W_{EX}$is the weight for category ¿Extinct¿. For the calculation of this indicator the wild species present in Spain are considered according to the data of the Spanish Inventory of Natural Heritage and Biodiversity for which its category of global IUCN threat has been determined. In order for year-on-year comparisons to be made, the indicator requires comparison of the same set of species each year. For this reason, when determining the category of threat of new species, the indicator is reviewed retrospectively, assuming that the most recent assessment applies since the first set of species was evaluated. $W_{EX}$Dollars_parentesis_3

Index

Annual yet to be determined

By taxonomic group

Tier I

Yes

Estadística de Diversidad de Especies Silvestres (ISO code: 23033)

MTED together with Consejerías/departamentos con competencia en la materia de las comunidades autónomas, asociaciones conservacionistas y científicas entre cuyos fines se encuentra el estudio y/o defensa de la biodiversidad

29/02/2024

IUCN