Japan

1,104 threatened species · Biodiversity Intelligence Dashboard

Threatened Species

1,104

CR + EN + VU

Critically Endangered

193

Highest risk

Endangered

460

Very high risk

Vulnerable

451

High risk

Declining

56%

616 species

Category Breakdown
CR 193
EN 460
VU 451
CR: 193
EN: 460
VU: 451

Critically Endangered

19317%

Extremely high risk of extinction in the wild.

Endangered

46042%

Very high risk of extinction in the wild.

Vulnerable

45141%

High risk of extinction in the wild.

Threatened total — 1,104 species

Species by Group
🐾

mammals

37

37 threatened

🐦

birds

57

57 threatened

🐢

reptiles

23

23 threatened

🐸

amphibians

50

50 threatened

🐟

fishes

235

235 threatened

🦗

insects

171

171 threatened

🌱

plants

144

144 threatened

Global Share

2.02%

of globally threatened species

Country Rank

#39

of 277 countries

Endemic Threatened

230

Found only here

Top Threats
1.Fishing & harvesting aquatic resources453 species
2.Annual & perennial non-timber crops287 species
3.Type Unknown/Unrecorded (pollution)282 species
4.Invasive non-native/alien species/diseases280 species
5.Habitat shifting & alteration273 species
6.Logging & wood harvesting261 species
7.Problematic native species/diseases223 species
8.Agricultural & forestry effluents197 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). Japan: Biodiversity Dashboard. SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/countries/JP

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 Japan?
Japan has 1,104 threatened species recorded in the SpeciesRadar database — 193 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 Japan?
Among the 193 Critically Endangered species in Japan, Fil de fer (Lymexylon navale) 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 Japan?
Protected area coverage for Japan is summarised on the country dashboard, drawing on the World Database on Protected Areas (WDPA) and national park designations.