Zoo Stock Species and the Red List
Zoo Stock Species and the Red List
Zoo Stock
This indicates that the species is included in the Second Zoo Stock Plan, which was formulated by the Tokyo Metropolitan Government in 2018. The plan sets goals for the next 10 years in three areas: "species conservation," "contribution to wildlife conservation," and "environmental education and conservation awareness." 124 animal species are included.
What is the Red List?
Based on scientific research, this is a list of wildlife classified by rank (category) indicating the degree of risk of extinction.
Livng Things Encyclopedia shows the categories (mainland and islands) assessed by the IUCN (International Union for Conservation of Nature) at the global level, the Ministry of the Environment for Japan, and the Tokyo Metropolitan Government for Tokyo.
The higher the category in each table, the higher the risk of extinction, and CR, EN, and VU are the three categories known as "endangered species." In Tokyo, species that are not at the NT (near threatened) level but are relatively rare are considered "species of concern."
|
IUCN categories |
|
|---|---|
|
EX |
extinction |
|
EW |
Extinction in the wild |
|
CR+EN |
— |
|
CR |
Serious crisis |
|
EN |
crisis |
|
VU |
emergency |
|
NT |
Near Threatened |
|
LC・○ |
Low Concern |
|
DD |
Data shortage |
|
LP |
— |
|
Japan (Ministry of the Environment) Category |
|
|---|---|
|
EX |
extinction |
|
EW |
Extinction in the wild |
|
CR+EN |
Endangered species |
|
CR |
Critically Endangered |
|
EN |
Endangered species |
|
VU |
Endangered species |
|
NT |
Near Threatened |
|
LC・○ |
— |
|
DD |
Lack of information |
|
LP |
Endangered |
|
Tokyo Category |
|
|---|---|
|
EX |
extinction |
|
EW |
Extinction in the wild |
|
CR+EN |
Endangered species |
|
CR |
Critically Endangered |
|
EN |
Endangered species |
|
VU |
Endangered species |
|
NT |
Near Threatened |
|
LC・○ |
Unranked |
|
DD |
Lack of information |
|
LP |
Endangered |
Creatures at Ueno Zoo
Creatures at Ueno Zoo
Eastern Japanese Common Toad
Bufo formosus
Eastern Japanese Common Toad
Bufo formosus
This toad is endemic to Japan. Its body size varies significantly depending on the region. It has large ear glands behind its eyes that secrete a white venom, and when it senses danger, it inflates its body to emphasize the ear glands.
| classification | Amphibians, Anura, Toads |
|---|---|
| English name | Eastern Japanese Common Toad |
| distribution | Japan (Tohoku to Kinki, northeastern Sanin. Introduced to parts of Hokkaido, Sado Island, and Izu Oshima.) |
| Residence | From the coast to the mountains, urban parks, and residential gardens |
| Size |
Body length: 4 to 16.5 cm
|
| food | Larvae: Plant material such as fallen leaves and moss Adult: insects, slugs, etc. |
| Red List |
IUCN: LC (Least Concern)
Tokyo: NT (near threatened) |
About classification
It was previously considered a subspecies of the Japanese common toad, but a paper published in 2023 showed that it is genetically distinct from the Japanese common toad, and is now considered a separate species.