Japan

1,104 threatened species · Biodiversity Intelligence Dashboard

Threatened Species

1,104

CR + EN + VU

Critically Endangered

194

Highest risk

Endangered

460

Very high risk

Vulnerable

450

High risk

Declining

56%

617 species

Category Breakdown
CR 194
EN 460
VU 450
CR: 194
EN: 460
VU: 450

Critically Endangered

19418%

Extremely high risk of extinction in the wild.

Endangered

46042%

Very high risk of extinction in the wild.

Vulnerable

45041%

High risk of extinction in the wild.

Threatened total — 1,104 species

Species by Group
🐟

fishes

235

235 threatened

🪸

corals

211

211 threatened

🦗

insects

171

171 threatened

🌱

plants

144

144 threatened

🍄

fungi

65

65 threatened

🐦

birds

57

57 threatened

🐚

molluscs

53

53 threatened

🐸

amphibians

50

50 threatened

🐾

mammals

37

37 threatened

🕷️

arachnids

28

28 threatened

🪱

other invertebrates

25

25 threatened

🐢

reptiles

23

23 threatened

🦀

crustaceans

5

5 threatened

Global Share

1.98%

of globally threatened species

Country Rank

#39

of 253 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 on SpeciesRadar — 194 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 Japan have?
Of the 1,104 threatened species in Japan, 194 are Critically Endangered, 460 are Endangered, and 450 are Vulnerable. Together these three IUCN Red List categories make up the "threatened" total.
What is the most endangered species in Japan?
Among the 194 Critically Endangered species in Japan, 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 Japan?
SpeciesRadar does not yet catalogue protected areas for Japan. 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 Japan?
The most affected groups in Japan, by number of threatened species, are fishes (235), corals (211), and insects (171). The full taxonomic breakdown is shown on the country dashboard.
What are the biggest threats to wildlife in Japan?
The leading threats to threatened species in Japan are fishing & harvesting aquatic resources, annual & perennial non-timber crops, type unknown/unrecorded (pollution), and invasive non-native/alien species/diseases. Each threat is mapped to the species it affects in the country's threat breakdown.
How many threatened species are found only in Japan?
Japan has 230 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 Japan's threatened species have declining populations?
617 of Japan'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 Japan compare to other countries for threatened species?
Japan ranks #39 of 253 countries by number of threatened species, and accounts for roughly 1.98% 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 Japan 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 Japan profile — species, national red list, and protected areas — can be downloaded as a CSV spreadsheet or a branded PDF report.