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 Inokashira Park Zoo
Creatures at Inokashira Park Zoo
Little Grebe
Tachybaptus ruficollis
Little Grebe
Tachybaptus ruficollis
They are often mistaken for ducks, but taxonomically they are a different species of bird.
Unlike ducks, they do not have webbed feet, but rather have flipper-like webbed toes on each of their fingers. They also have feet attached to the back of their bodies, which are useful for diving into the water to catch fish and other food. They build nests by layering aquatic plants, making them appear to float on the water's surface.
| classification | Aves, Little Grebe, family Little Grebe |
|---|---|
| English name | Little Grebe |
| distribution | Japan, Asia, Europe, and the African continent excluding the Sahara Desert |
| Residence | Ponds, rivers, estuaries, and bays |
| Size |
Body length: Approximately 26 cm
|
| food | Small animals such as fish, shrimp, and aquatic insects |
| Red List |
IUCN: LC (Least Concern)
Tokyo: NT (near threatened) |