Cook Islands

65 threatened species · Biodiversity Intelligence Dashboard

Threatened Species

65

CR + EN + VU

Critically Endangered

17

Highest risk

Endangered

25

Very high risk

Vulnerable

23

High risk

Declining

68%

44 species

Category Breakdown
CR 17
EN 25
VU 23
CR: 17
EN: 25
VU: 23

Critically Endangered

1726%

Extremely high risk of extinction in the wild.

Endangered

2538%

Very high risk of extinction in the wild.

Vulnerable

2335%

High risk of extinction in the wild.

Threatened total — 65 species

Species by Group
🌱

plants

20

20 threatened

🪸

corals

20

20 threatened

🐟

fishes

9

9 threatened

🐦

birds

8

8 threatened

🐚

molluscs

3

3 threatened

🐢

reptiles

2

2 threatened

🪱

other invertebrates

2

2 threatened

🦀

crustaceans

1

1 threatened

Global Share

0.12%

of globally threatened species

Country Rank

#195

of 250 countries

Endemic Threatened

14

Found only here

Top Threats
1.Fishing & harvesting aquatic resources34 species
2.Invasive non-native/alien species/diseases33 species
3.Annual & perennial non-timber crops26 species
4.Habitat shifting & alteration24 species
5.Recreational activities20 species
6.Logging & wood harvesting18 species
7.Problematic native species/diseases18 species
8.Domestic & urban waste water17 species

How to Cite

IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS

GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org

This page: SpeciesRadar (2026). Cook Islands: Biodiversity Dashboard. SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/countries/CK

Species counts reflect IUCN Red List threatened categories (CR, EN, VU). · Full citation guide & data usage terms

Frequently asked questions

How many threatened species are in Cook Islands?
Cook Islands has 65 threatened species recorded on SpeciesRadar — 17 of those are Critically Endangered, facing an extremely high risk of extinction. The figures combine IUCN Red List data with national red list assessments where available.
How many Critically Endangered, Endangered, and Vulnerable species does Cook Islands have?
Of the 65 threatened species in Cook Islands, 17 are Critically Endangered, 25 are Endangered, and 23 are Vulnerable. Together these three IUCN Red List categories make up the "threatened" total.
What is the most endangered species in Cook Islands?
Among the 17 Critically Endangered species in Cook Islands, Giant Clam (Tridacna gigas) is one of the most at-risk — featured prominently on the country dashboard. The full list of Critically Endangered species is filterable on the Species tab.
What protected areas exist in Cook Islands?
SpeciesRadar does not yet catalogue protected areas for Cook Islands. Where available, protected-area data is drawn from the World Database on Protected Areas (WDPA) and national designations.
Which animal and plant groups are most threatened in Cook Islands?
The most affected groups in Cook Islands, by number of threatened species, are plants (20), corals (20), and fishes (9). The full taxonomic breakdown is shown on the country dashboard.
What are the biggest threats to wildlife in Cook Islands?
The leading threats to threatened species in Cook Islands are fishing & harvesting aquatic resources, invasive non-native/alien species/diseases, annual & perennial non-timber crops, and habitat shifting & alteration. Each threat is mapped to the species it affects in the country's threat breakdown.
How many threatened species are found only in Cook Islands?
Cook Islands has 14 threatened species that are endemic — found nowhere else on Earth. Because their entire global population depends on this one country, they are especially vulnerable to local habitat loss.
How many of Cook Islands's threatened species have declining populations?
44 of Cook Islands's threatened species have populations that are still declining. Reversing these trends is the central focus of the conservation work the country dashboard tracks.
How does Cook Islands compare to other countries for threatened species?
Cook Islands ranks #195 of 250 countries by number of threatened species, and accounts for roughly 0.12% of all threatened species tracked worldwide. Threat is geographically concentrated, so a high rank reflects both rich biodiversity and intense pressure on it.
Where does the data for Cook Islands come from, and can I download it?
SpeciesRadar draws on the IUCN Red List, the Global Biodiversity Information Facility (GBIF), the World Database on Protected Areas, and national red lists. Every table on the Cook Islands profile — species, national red list, and protected areas — can be downloaded as a CSV spreadsheet or a branded PDF report.