Isle of Man

268 threatened species · Biodiversity Intelligence Dashboard

Threatened Species

268

CR + EN + VU

Critically Endangered

53

Highest risk

Endangered

72

Very high risk

Vulnerable

143

High risk

Declining

6%

16 species

Category Breakdown
CR 53
EN 72
VU 143
CR: 53
EN: 72
VU: 143

Critically Endangered

5320%

Extremely high risk of extinction in the wild.

Endangered

7227%

Very high risk of extinction in the wild.

Vulnerable

14353%

High risk of extinction in the wild.

Threatened total — 268 species

Species by Group
🐾

mammals

1

1 threatened

🐦

birds

19

19 threatened

🐢

reptiles

1

1 threatened

🐟

fishes

9

9 threatened

🦗

insects

106

106 threatened

🌱

plants

44

44 threatened

Global Share

0.49%

of globally threatened species

Country Rank

#111

of 277 countries

Endemic Threatened

0

Found only here

Top Threats
1.Habitat fragmentation24 species
2.Habitat loss and fragmentation21 species
3.Coastal development and urbanization21 species
4.Agricultural intensification20 species
5.Urban development and infrastructure expansion19 species
6.Agricultural intensification and pesticide use18 species
7.Water pollution from agricultural runoff18 species
8.Water pollution and eutrophication12 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). Isle of Man: Biodiversity Dashboard. SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/countries/IM

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 Isle of Man?
Isle of Man has 268 threatened species recorded in the SpeciesRadar database — 53 of those are Critically Endangered (CR), facing an extremely high risk of extinction. The figures combine IUCN Red List data with national red list assessments where available.
What is the most endangered species in Isle of Man?
Among the 53 Critically Endangered species in Isle of Man, heidesteekmier (Myrmica sulcinodis) is one of the most at-risk — featured prominently on the country dashboard. The full list of CR species is filterable on the country page.
What protected areas exist in Isle of Man?
Protected area coverage for Isle of Man is summarised on the country dashboard, drawing on the World Database on Protected Areas (WDPA) and national park designations.