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 Tama Zoo
Creatures at Tama Zoo
Straw-necked Ibis
Threskiornis spinicollis
Straw-necked Ibis
Threskiornis spinicollis
This bird is characterized by its black feathers with a purplish-green sheen and the tuft of yellow ornamental feathers on its upper chest. Its name comes from the fact that these ornamental feathers resemble straw. In Australia, it inhabits inland cultivated fields and vast plains, and is valued as a beneficial bird because it eats grasshoppers and other pests during the local spring (September to December).
| classification | Birds, Pelecaniformes, Crested Ibis |
|---|---|
| English name | Straw-necked Ibis |
| distribution | Primarily found in Australia, and occasionally in southern New Guinea and Kawakawa |
| Residence | In addition to areas far from water, such as pastures, farmland, sparse forests, and dry grasslands, they are also found in marshes, lake shores, riverbeds, and floodplains. |
| Size |
Total length: 59-76cm
Weight: 1.1kg - 1.5kg Wingspan length: 100-120cm |
| food | Mainly insects, spiders, crustaceans, snails, frogs, fish, etc. |
| Red List |
IUCN: LC (Least Concern)
|