Vulnerable species

Vulnerability is mainly caused by habitat loss or destruction of the species' home.

Some species listed as "vulnerable" may be common in captivity, an example being the military macaw.

[1] Practices such as cryoconservation of animal genetic resources have been enforced in efforts to conserve vulnerable breeds of livestock specifically.

The International Union for Conservation of Nature uses several criteria to enter species in this category.

A taxon is Vulnerable when it is not critically endangered or Endangered but is facing a high risk of extinction in the wild in the medium-term future, as defined by any of the following criteria (A to E): A) Population reduction in the form of either of the following: B) Extent of occurrence estimated to be less than 20,000 km2 or area of occupancy estimated to be less than 2,000 km2, and estimates indicating any two of the following: C) Population estimated to number fewer than 10,000 mature individuals and either: D) Population very small or restricted in the form of either of the following: E) Quantitative analysis showing the probability of extinction in the wild is at least 10% within 100 years.

Mexican red-knee tarantula ( Brachypelma hamorii ), a vulnerable species from Mexico
Snares penguin ( Eudyptes robustus ), a vulnerable species from New Zealand
Andean condor ( Vultur gryphus ), a vulnerable species from the Andes
Hippopotamus ( Hippopotamus amphibius ), a vulnerable species from Africa