TSV

Biodiversity Indicators - TSV

Biodiversity indicators are a set of metrics used to quantitatively assess ecosystem health, species extinction risk, and the capacity to provide ecosystem services. Various types of indicators, including biodiversity indices, Red List indices, and ecosystem service indicators, have been developed and operated by international organizations and national governments. These indicators are widely used for monitoring biodiversity conservation progress, policy development, and corporate nature-related risk assessment.

biodiversity ecology environmental indicators Red List endangered species ecosystem services IUCN CBD SDGs

code	slug	name	description	category	formula	range_max	range_min	range_unit
BDI-001	shannon-wiener-index	Shannon-Wiener Index	A diversity index based on the entropy concept from information theory.	Diversity Index	H' = -Σ(pi × ln(pi))		0	bit
BDI-002	simpson-index	Simpson's Diversity Index	An index representing the probability that two randomly selected individuals belong to different species.	Diversity Index	D = 1 - Σ(pi²)	1	0	probability
BDI-003	pielou-evenness-index	Pielou's Evenness Index	An index measuring the evenness of species distribution.	Evenness Index	J' = H' / ln(S)	1	0	ratio
BDI-004	margalef-richness-index	Margalef's Richness Index	An index evaluating species richness.	Richness Index	R = (S - 1) / ln(N)		0	dimensionless
BDI-005	red-list-index	Red List Index (RLI)	An index measuring changes in species extinction risk based on the IUCN Red List.	Extinction Risk Indicator	Weighted sum of species in each category	1	0	index
BDI-006	living-planet-index	Living Planet Index (LPI)	An index tracking changes in vertebrate population sizes.	Biodiversity Trend Indicator	Geometric mean of population trends		0	index
BDI-007	biodiversity-intactness-index	Biodiversity Intactness Index (BII)	An index showing the proportion of species remaining compared to a natural state.	Ecosystem Integrity Indicator	(Abundance of all species / Expected abundance) × 100	100	0	percent
BDI-008	mean-species-abundance	Mean Species Abundance (MSA)	An index showing species abundance per unit area compared to a pristine state.	Ecosystem Integrity Indicator	MSA = Observed abundance / Pristine abundance	1	0	ratio
BDI-009	marine-trophic-index	Marine Trophic Index (MTI)	An index showing the average trophic level of fish species based on catch data.	Marine Ecosystem Indicator	Weighted average of trophic levels	5	2	trophic level
BDI-010	star-metric	STAR Metric	A metric quantifying how conservation actions in a specific area could contribute to reducing global extinction risk.	Conservation Effectiveness Indicator	Weighted sum of species extinction risk reduction potential		0	dimensionless
BDI-011	chao1-estimator	Chao1 Estimator	An estimator calculating the estimated total species count including unobserved species.	Species Richness Estimator	S_obs + (a₁(a₁-1))/(2(a₂+1))		0	species count
BDI-012	protected-area-coverage	Protected Area Coverage	An indicator showing the proportion of protected areas relative to total land or marine area.	Conservation Status Indicator	(Protected area / Total area) × 100	100	0	percent
BDI-013	key-biodiversity-areas	Key Biodiversity Areas (KBAs)	An indicator identifying sites of critical importance for global biodiversity persistence.	Conservation Priority Area Indicator	Site-based assessment against KBA criteria			site count
BDI-014	ecosystem-services-indicators	Ecosystem Services Indicators	A set of indicators evaluating the quantity and quality of services provided by ecosystems.	Ecosystem Services Indicator	Various metrics depending on service type			varies
BDI-015	red-list-categories	Red List Categories	Nine categories defined by IUCN for classifying species extinction risk.	Extinction Risk Classification	Assessment against IUCN Red List criteria			categorical