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 Ueno Zoo

Japanese Pond Turtle

Mauremys japonica

Japanese Pond Turtle
Japanese Pond Turtle
Japanese Pond Turtle

As the name suggests, this turtle is found only in Japan, and its scientific name "japonica" means "Japanese." It is smaller than the Japanese pond turtle, and its shell is round and has jagged edges near the tail. Young Japanese Pond Turtle turtles are sometimes called "Zenigame (Money Turtle)."

classification Reptilia, Testudines, Pond Turtles
English name Japanese Pond Turtle
distribution Japan (Honshu, Shikoku, Kyushu)
Residence Rivers, lakes, and swamps in mountainous and hilly areas
Size
Shell length: 8-21cm
food They are omnivorous, eating plants as well as insects and earthworms.
Red List
IUCN: NT (Near Threatened)
Japan: NT (Near Threatened)
Tokyo: Critically Endangered (CR)
Ueno Zoo exhibition area

Reasons for the decrease

The population is declining due to factors such as embankment construction, deterioration of water quality, and overfishing for pets, as well as the loss of habitat to the invasive red-eared slider turtle.