Zoo Stock Species and the Red List

Zoo Stock

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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
local population

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
local population

Creatures at Inokashira Park Zoo

Japanese Keelback

Hebius vibakari

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It was named "Japanese Keelback" because if you are bitten, your life is over for that day, but it is not poisonous. It is a snake characterized by its slender body and white pattern that runs from the corner of its mouth to the back of its head. It often lives near water and is an excellent swimmer. It mates in early summer and lays eggs in summer. It hibernates during the winter. It has a docile nature, but when it senses danger, it will twist its neck and tremble violently.

classification Reptilia, Squamata, Colubridae
English name Japanese Keelback
distribution Japan (Honshu, Shikoku, Kyushu), East Asia
Residence Waterside areas such as rice fields, forests, and grasslands
Size
Total length: approx. 50cm
food Small aquatic animals such as frogs, earthworms, and fish
Red List
IUCN: LC (Least Concern)
Tokyo: VU (Various)
Inokashira Park Zoo Exhibition Area