The Biodiversity Intactness Index (BII)
The Biodiversity Intactness Index, or BII, is a powerful metric for understanding how much of an ecosystem’s original biodiversity remains.
This concise reference guide explains what BII is, how it is calculated, why it matters, and how organisations can use it in conservation planning, biodiversity monitoring, natural capital accounting, supply chain risk assessment, TNFD-aligned disclosure, and nature-positive strategy.
Covering the science behind BII, its relationship to international biodiversity frameworks, practical implementation steps, case studies, data sources, glossary terms, and indicative biome values, this book is designed for conservation practitioners, consultants, sustainability teams, researchers, policymakers, and students.
A practical guide for anyone who needs to understand biodiversity condition, nature-related risk, and the role of BII in measuring and restoring ecological integrity.
