Which has higher red list index, British Indian Ocean Territory or Spain?

British Indian Ocean Territory, at 0.8 index against 0.8 index in Spain as of 2025.

What is the difference in red list index between British Indian Ocean Territory and Spain?

0 index, with British Indian Ocean Territory ahead.

How many years of comparable data are there for British Indian Ocean Territory and Spain?

46 years are reported by both, from 1980 to 2025.

Where does this data come from?

BirdLife International and IUCN – processed by Our World in Data, published as Red List Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

British Indian Ocean Territory vs Spain: Red List Index

British Indian Ocean Territory

0.8 index

in 2025

Spain

0.8 index

in 2025

British Indian Ocean Territory rank

167th

Spain rank

167th

Red List Index over time

British Indian Ocean Territory
Spain

How they compare

British Indian Ocean Territory currently reports 0.8 index against 0.8 index in Spain, a difference of 0 index.

The two have swapped places 1 time across 46 shared years of data; in 1980 it was British Indian Ocean Territory ahead.

British Indian Ocean Territory ranks 167th and Spain ranks 167th of 247 countries.

British Indian Ocean Territory has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade	British Indian Ocean Territory	Spain	Difference	Ahead
1980s	0.91 index	0.864 index	0.046 index	British Indian Ocean Territory
1990s	0.907 index	0.868 index	0.039 index	British Indian Ocean Territory
2000s	0.878 index	0.84 index	0.038 index	British Indian Ocean Territory
2010s	0.842 index	0.813 index	0.029 index	British Indian Ocean Territory
2020s	0.8117 index	0.8 index	0.0117 index	British Indian Ocean Territory

Averages of every year both report within each decade.

Frequently asked questions

Which has higher red list index, British Indian Ocean Territory or Spain?: British Indian Ocean Territory, at 0.8 index against 0.8 index in Spain as of 2025.
What is the difference in red list index between British Indian Ocean Territory and Spain?: 0 index, with British Indian Ocean Territory ahead.
How many years of comparable data are there for British Indian Ocean Territory and Spain?: 46 years are reported by both, from 1980 to 2025.
How do British Indian Ocean Territory and Spain rank globally for red list index?: British Indian Ocean Territory ranks 167th and Spain ranks 167th of 247 countries.
Where does this data come from?: BirdLife International and IUCN – processed by Our World in Data, published as Red List Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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British Indian Ocean Territory vs Spain: Red List Index. Statizoid, drawing on BirdLife International and IUCN – processed by Our World in Data. Retrieved 29 September 2026, from https://reference.statizoid.com/compare/red-list-index/british-indian-ocean-territory/spain/

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<a href="https://reference.statizoid.com/compare/red-list-index/british-indian-ocean-territory/spain/">British Indian Ocean Territory vs Spain: Red List Index</a> — Statizoid

About this data

Indicator: Red List Index
Unit: index
Source: BirdLife International and IUCN – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 247 places, 11,362 data points, 1980–2025
Last refreshed: 18 September 2026

Red List Index.