United Kingdom

1,446 threatened species · Biodiversity Intelligence Dashboard

Threatened Species

1,446

CR + EN + VU

Critically Endangered

262

Highest risk

Endangered

392

Very high risk

Vulnerable

792

High risk

Declining

11%

156 species

Category Breakdown
CR 262
EN 392
VU 792
CR: 262
EN: 392
VU: 792

Critically Endangered

26218%

Extremely high risk of extinction in the wild.

Endangered

39227%

Very high risk of extinction in the wild.

Vulnerable

79255%

High risk of extinction in the wild.

Threatened total — 1,446 species

Species by Group
🦗

insects

731

731 threatened

🕷️

arachnids

184

184 threatened

🌱

plants

145

145 threatened

🍄

fungi

117

117 threatened

🐟

fishes

67

67 threatened

🐦

birds

55

55 threatened

🐚

molluscs

50

50 threatened

🪱

other invertebrates

42

42 threatened

🦀

crustaceans

22

22 threatened

🪸

corals

11

11 threatened

🐾

mammals

10

10 threatened

🐸

amphibians

9

9 threatened

🐢

reptiles

3

3 threatened

Global Share

2.59%

of globally threatened species

Country Rank

#22

of 250 countries

Endemic Threatened

21

Found only here

Top Threats
1.Habitat fragmentation172 species
2.Agricultural intensification and pesticide use109 species
3.Agricultural intensification105 species
4.Urban development and infrastructure expansion98 species
5.Logging & wood harvesting91 species
6.Invasive non-native/alien species/diseases82 species
7.Fishing & harvesting aquatic resources78 species
8.Habitat shifting & alteration75 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). United Kingdom: Biodiversity Dashboard. SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/countries/GB

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 United Kingdom?
United Kingdom has 1,446 threatened species recorded on SpeciesRadar — 262 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 United Kingdom have?
Of the 1,446 threatened species in United Kingdom, 262 are Critically Endangered, 392 are Endangered, and 792 are Vulnerable. Together these three IUCN Red List categories make up the "threatened" total.
What is the most endangered species in United Kingdom?
Among the 262 Critically Endangered species in United Kingdom, Lymexylon navale 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 United Kingdom?
SpeciesRadar does not yet catalogue protected areas for United Kingdom. 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 United Kingdom?
The most affected groups in United Kingdom, by number of threatened species, are insects (731), arachnids (184), and plants (145). The full taxonomic breakdown is shown on the country dashboard.
What are the biggest threats to wildlife in United Kingdom?
The leading threats to threatened species in United Kingdom are habitat fragmentation, agricultural intensification and pesticide use, agricultural intensification, and urban development and infrastructure expansion. Each threat is mapped to the species it affects in the country's threat breakdown.
How many threatened species are found only in United Kingdom?
United Kingdom has 21 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 United Kingdom's threatened species have declining populations?
156 of United Kingdom'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 United Kingdom compare to other countries for threatened species?
United Kingdom ranks #22 of 250 countries by number of threatened species, and accounts for roughly 2.59% 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 United Kingdom 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 United Kingdom profile — species, national red list, and protected areas — can be downloaded as a CSV spreadsheet or a branded PDF report.