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How has IUCN assessed the species in the genus Bos? (Easy)
For each species in the genus whose wild species gave rise to the domestic ox, zebu, domestic yak, and gayal, choose the IUCN red list category they belong to.
Based on the most recent assessment in the global scale
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Last updated: October 31, 2024
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| First submitted | September 14, 2024 |
| Times taken | 7 |
| Average score | 60.0% | Report this quiz | Report |
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Bos javanicus (banteng)
A2abcd+4cd. According to estimates, it has declined by more than 80 % over the past ~21 years. The decline has an extremely high possibility of continuing. Declines are primarily driven by illegal hunting for meat and trade in horns, by-catch in traps set for other species, and extensive habitat loss and degradation in mainland southeast Asia, Sabah, and Kalimantan. The most shocking part is that it has gone through a 94-99 % decline (Yes, you saw it right) in the three protected areas that exist in Eastern Cambodia.
Bos gaurus (gaur)
A2cd+3cd+4cd. It has seen a decline that is likely over 70 % in parts of its range, including Indochina and Malaysia, over three generations, while the decline rate is lower in India and Nepal. Overall, it has declined by at least 30 %. Hunting for meat and horns, and habitat loss continues to drive this species to a more precarious state. Directed poaching is especially concerning, as the poaching in Malaysia is done by international gangs, and the gangs are likely to poach the individuals in southern India.
It is crucial that you do not make a typo, as a typo could result in Bos taurus, i.e. the domestic cattle.
Bos mutus (wild yak)
C1. The number of mature individuals is estimated to be less than 10000, and a decline of more than 10 %, caused by poaching and threats to its habitat, is expected to take place in three generations. Hybridization with the domestic yak, which has had a long history of domestic cattle admixture, is also a danger.
Bos sauveli (kouprey)
Possibly extinct. A2d; C1+2a(i); D. It was last seen in 1969. It is in this category for now because none of the landscapes assessed have been surveyed enough. The species is most likely extinct; there are almost certainly less than 50 mature individuals. The high level of hunting in the region has contributed to its decline.
Bos primigenius (aurochs)
The North African subspecies (Bos primigenius mauritanicus) and the South Asian subspecies (Bos primigenius namadicus) both became extinct in the early Holocene. The last subspecies to become extinct was the Eurasian subspecies (Bos primigenius primigenius), which was last seen in 1627 (it was seen in Poland).
Critically Endangered
Data Deficient
Endangered
Extinct
Extinct in the Wild
Least Concern
Near Threatened
Not Evaluated
Vulnerable
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