Jersey

163 threatened species · Biodiversity Intelligence Dashboard

Threatened Species

163

CR + EN + VU

Critically Endangered

33

Highest risk

Endangered

41

Very high risk

Vulnerable

89

High risk

Declining

15%

24 species

Category Breakdown
CR 33
EN 41
VU 89
CR: 33
EN: 41
VU: 89

Critically Endangered

3320%

Extremely high risk of extinction in the wild.

Endangered

4125%

Very high risk of extinction in the wild.

Vulnerable

8955%

High risk of extinction in the wild.

Threatened total — 163 species

Species by Group
🐾

mammals

1

1 threatened

🐦

birds

20

20 threatened

🐢

reptiles

1

1 threatened

🐟

fishes

15

15 threatened

🦗

insects

72

72 threatened

🌱

plants

18

18 threatened

Global Share

0.30%

of globally threatened species

Country Rank

#150

of 277 countries

Endemic Threatened

0

Found only here

Top Threats
1.Urban development and infrastructure expansion21 species
2.Fishing & harvesting aquatic resources20 species
3.Habitat loss and fragmentation11 species
4.Agricultural intensification and pesticide use10 species
5.Agricultural intensification and habitat conversion9 species
6.Logging & wood harvesting9 species
7.Coastal development and urbanization8 species
8.Agricultural intensification8 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). Jersey: Biodiversity Dashboard. SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/countries/JE

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 Jersey?
Jersey has 163 threatened species recorded in the SpeciesRadar database — 33 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 Jersey?
Among the 33 Critically Endangered species in Jersey, Ådselgraver (Nicrophorus interruptus) 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 Jersey?
Protected area coverage for Jersey is summarised on the country dashboard, drawing on the World Database on Protected Areas (WDPA) and national park designations.