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
Crested Porcupine
Hystrix cristata
Crested Porcupine
Hystrix cristata
They are a relative of mice, with spines that have developed from modified fur. When an enemy approaches, they make noise by shaking the hollow hairs on their tails and stamping their hind legs to intimidate them. If that doesn't work, they will charge backwards with the spines on their backs erect. The tips of the spines are sharp and easy to remove, but they are not poisonous and cannot be thrown. They are born with spines, which are soft at first and harden after a while.
| classification | Mammals, Rodentia, Hystridae |
|---|---|
| English name | Crested Porcupine |
| distribution | North-central Africa, Mediterranean coast |
| Residence | Open forest, Eurasian Moorhen, dry rocky areas, etc. |
| Size |
Head torso length: 60-90cm
Tail length: 8-15cm Spines length: 10-40cm Weight: 15-27kg |
| food | Roots, bulbs, fruits, etc. |
| Red List |
IUCN: LC (Least Concern)
|