Best practice standard for national biodiversity monitoring using Red List Index

Answer

The clearest official reporting frameworks are the UN Sustainable Development Goals, which designate the Red List Index as indicator 15.5.1 for Target 15.5, and the Convention on Biological Diversity's Kunming–Montreal Global Biodiversity Framework, whose supplied monitoring document lists it as headline indicator A.3 for Goal A. The review also documents its headline role for Target 4 db74c5f4; 3435cd69; 163da307; 438a3881; bca2e07e.

IPBES also uses RLI in its global and regional biodiversity assessments. Assessment use should be distinguished from the formal indicator designations that directly answer the national-progress reporting question 3d7e359d; 5d0b479d; bca2e07e.

Summary

Use the SDG and CBD indicator identities when specifying the relevant international reporting standard. IPBES provides an assessment context. The corpus establishes institutional use and designation; it does not measure countries' actual reporting compliance or prove that every country submits one identical national index to every framework db74c5f4; 438a3881; 3d7e359d.

Evidence

| Evidence source | Institutional role supported | Verified records | |---|---|---| | UN Statistics Division metadata repository | SDG indicator 15.5.1 under Target 15.5 | db74c5f4 | | Official SDG metadata PDF, updated 2023-12-15 | RLI designation; IUCN as custodian and BirdLife International as co-compiler; historical CBD and MDG use | 3435cd69; 163da307 | | CBD/COP/16/L.26/Rev.1 monitoring-framework document | Goal A headline indicator A.3; RLI disaggregations across other targets | 438a3881 | | Butchart et al. 2025 review | CBD Goal A/Target 4 headline role, earlier Aichi Target 12 use, SDG reporting and IPBES assessment use; also CMS, Ramsar and UNCCD use | bca2e07e; 5d0b479d | | IPBES 2019 Global Assessment summary | Intergovernmental use of RLI to assess extinction-risk trends | 3d7e359d |

The UN metadata's older wording describes a proposed headline indicator in a draft post-2020 framework. The supplied CBD document and later review explicitly list the headline indicator. These statements have different document contexts; the older proposal wording should not replace the specific CBD listing 163da307; 438a3881; bca2e07e.

Methodology

All supplied verified facts are accounted for. The two records of the same UN metadata PDF are one underlying document; the two Butchart-linked records overlap and are not two independent review studies. Primary institutional documents identify the formal indicator slots; the review contextualizes historical and wider uptake. Source checking used the UN metadata, CBD monitoring document, Butchart full text and the IPBES record. New source details not represented by the supplied verified facts were not added as findings.

This version replaces the earlier synthesis, incorporates the additional UN repository fact, and retains the prior disclosure that record 3435cd69 duplicates the metadata source underlying 163da307. Both are cited here so that the disclosure remains visible 3435cd69; 163da307; db74c5f4.

Limitations

• Institutional designation is not evidence of national implementation rates or reporting compliance db74c5f4; 438a3881.
• Listing RLI disaggregations does not establish that every variant is operational or methodologically complete 438a3881.
• CMS, Ramsar and UNCCD use is documented by the review; corresponding primary convention documents are not supplied in this corpus bca2e07e.
• IPBES assessment use is not presented here as proof of a separate mandatory national reporting system 3d7e359d; 5d0b479d.