🦜Biodiversity Index

How the Raw Value Is Calculated

The raw value is a Nomadino 0-100 point value for biodiversity. High values indicate strong species richness, relevant habitats and a plausible biodiversity and habitat assessment.

The updated rating uses Nomadino species-richness context as the main anchor and supplements it with the Biodiversity & Habitat value from the 2024 Environmental Performance Index. This avoids confusing pure species richness with habitat and protection performance while keeping both perspectives visible.

GBIF data access, IUCN context and protected-area data are additional public plausibility sources. They matter because biodiversity is strongly affected by reporting coverage, country size, island endemism, tropical location and research intensity.

For countries and territories without complete direct coverage, Nomadino uses maintained replacement values from administering state, biogeography, island or tropical context, available nature indicators and regional comparators.

The rating equals the raw value. A higher raw value therefore improves the ranking.