Metadata Sub-indicator 15.5.1.5. Índice de la Lista Roja (invertebrados)

Goal

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

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

Indicator 15.5.1. Red List Index

Sub-indicator

Sub-indicator 15.5.1.5. Red List Index (invertebrates)

Type of indicator (global, European, national)
  • Global
  • National
Definition

The indicator measures in a theoretical and aggregate way how far from extinction are the species of invertebrates present in Spain.

Calculation method

\[RLI^t=1 - \frac{\sum_{i}^{n}S_i\cdot W_i}{N\cdot W_{EX}}\]Where: \(S_it\)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

Unit of measure

Index

Periodicity

Anual sin determinar

Disaggregated data(Gender, age, region in Spain, other)

By taxonomic group

Tier

Tier I

Come from National Statistics Plan (YES/NO)

Yes

Statistical operation

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

Date of the last metadata update

29/02/2024

Link to United Nations metadata
Custody agency

IUCN

Observations