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Rhinoceros sondaicus annamiticus | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Perissodactyla |
Family: | Rhinocerotidae |
Genus: | Rhinoceros |
Species: | |
Subspecies: | R. s. annamiticus |
Trinomial name | |
Rhinoceros sondaicus annamiticus Heude, 1892 | |
The Vietnamese Javan rhinoceros (Rhinoceros sondaicus annamiticus), [2] also known as the Indo-Chinese Javan rhinoceros, is an extinct subspecies of the Javan rhinoceros that formerly lived in Laos, Cambodia, Thailand, Malaysia, and Vietnam. The subspecific term annamiticus derives from the Annamite name of the Indochinese Mountains in Indochina, part of the historical distribution of the subspecies.
Rhinoceros sondaicus annamiticus once lived across South China, Vietnam, Cambodia, Laos, Thailand, and Malaysia.
Genetic analysis suggested the subspecies and the Indonesian Javan rhinoceros last shared a common ancestor between 300,000 and 2 million years ago. [1] [3]
In 2006, a single population, estimated at fewer than 12 remaining rhinos, lived in an area of seasonal tropical forest of Cat Tien National Park in Vietnam. The last known individual of the population was shot by a poacher in 2010, and some conservation groups believe that the subspecies is extinct. [1] [4]
As with many other species, the two main factors in the decline of the Vietnamese Javan rhinoceros populations has been loss of habitat combined with over-hunting. Poaching for horns, a problem that affects all rhino species. The horns have been a traded commodity for more than 2,000 years in China, where they are believed to have healing properties. Because the Vietnamese Javan rhinoceros's final range encompassed an area of human poverty, it is difficult to convince local people not to kill an animal that could be sold for an enormous sum of money. [5]
The Javan rhinoceros, Javan rhino, Sunda rhinoceros or lesser one-horned rhinoceros is a critically endangered member of the genus Rhinoceros, of the rhinoceros family, Rhinocerotidae, and one of the five remaining extant rhinoceros species across South Asia and Africa. The Javan rhinoceros is one of the smallest rhinoceros species, along with the Sumatran, or "hairy", rhinoceros. They are superficially similar to Indian rhinos, as they have plate-like, "armored" protective skin folds, but are slightly smaller in size, at just 3.1–3.2 m (10–10 ft) long and 1.4–1.7 m (4.6–5.6 ft) tall, on average. The heaviest specimens weigh around 2,300 kg/2.3 tonnes, similar to a black rhinoceros. However, unlike the long and potentially lethal horns of the black or white rhinoceroses of Africa, the Javan species' single, somewhat blunted horn is usually shorter than 25 cm (9.8 in).
The black rhinoceros, black rhino or hook-lipped rhinoceros is a species of rhinoceros, native to eastern Africa and southern Africa, including Angola, Botswana, Kenya, Malawi, Mozambique, Namibia, South Africa, Eswatini, Tanzania, Zambia, and Zimbabwe. Although the species is referred to as black, its colours vary from brown to grey. It is the only extant species of the genus Diceros.
The Sumatran rhinoceros also known as the hairy rhinoceros, Asiatic one-horned rhinoceros, Asian one-horned rhinoceros or Sumatran rhino for short is a rare member of the family Rhinocerotidae and one of five extant species of rhinoceros; it is the only extant species of the genus Dicerorhinus. It is the smallest rhinoceros, although it is still a large mammal; it stands 112–145 cm (44–57 in) high at the shoulder, with a head-and-body length of 2.36–3.18 m and a tail of 35–70 cm (14–28 in). The weight is reported to range from 500–1,000 kg (1,100–2,200 lb), averaging 700–800 kg (1,540–1,760 lb). Like both African species, it has two horns; the larger is the nasal horn, typically 15–25 cm (5.9–9.8 in), while the other horn is typically a stub. A coat of reddish-brown hair covers most of the Sumatran rhino's body.
The green peafowl or Indonesian peafowl is a peafowl species native to the tropical forests of Southeast Asia and Indochina. It is the national bird of Myanmar. Formerly common throughout Southeast Asia, only a few isolated populations survive in Cambodia and adjacent areas of Vietnam. It has been listed as endangered on the IUCN Red List since 2009, primarily due to widespread deforestation, agriculture and loss of suitable habitat, severely fragmenting populations and contributing to an overall decline in numbers. The green peafowl is in demand for private and home aviculture and threatened by the pet trade, feather collectors and hunters for meat and targeted.
A rhinoceros, commonly abbreviated to rhino, is a member of any of the five extant species of odd-toed ungulates in the family Rhinocerotidae; it can also refer to a member of any of the extinct species of the superfamily Rhinocerotoidea. Two of the extant species are native to Africa, and three to South and Southeast Asia.
The banteng, also known as tembadau, is a species of wild bovine found in Southeast Asia.
The Indochinese tiger is a population of the Panthera tigris tigris subspecies that is native to Southeast Asia. This population occurs in Myanmar and Thailand. In 2011, the population was thought to comprise 342 individuals, including 85 in Myanmar and 20 in Vietnam, with the largest population unit surviving in Thailand, estimated at 189 to 252 individuals during the period 2009 to 2014.
The Siamese crocodile is a medium-sized freshwater crocodile native to Indonesia, Brunei, East Malaysia, Laos, Cambodia, Myanmar, Thailand and Vietnam. The species is critically endangered and already extirpated from many regions. Its other common names include Siamese freshwater crocodile, Singapore small-grain, and soft-belly.
The Indochinese box turtle, Vietnamese box turtle, or flowerback box turtle is a species of Asian box turtles from China, northern and central Vietnam, Laos, and possibly northeastern Cambodia. It is found in high altitude woodland where it tends to hide in the undergrowth. There is considerable confusion as to the taxonomy of this species with several subspecies being recognised by some authorities. and not by others. The International Union for Conservation of Nature has rated its conservation status as "critically endangered".
The western black rhinoceros or West African black rhinoceros is an extinct subspecies of the black rhinoceros. It was declared extinct by the IUCN in 2011. The western black rhinoceros was believed to have been genetically different from other rhino subspecies. It was once widespread in the savanna of sub-Saharan Africa, but its numbers declined due to poaching. The western black rhinoceros resided primarily in Cameroon, but surveys since 2006 have failed to locate any individuals.
Functional extinction is the extinction of a species or other taxon such that:
Aglaia lawii is a species of tree in the family Meliaceae. As well as the autonym species, there are two subspecies accepted.
The Southeastern Indochina dry evergreen forests are a tropical dry broadleaf forest ecoregion of Indochina.
Nakai-Nam Theun National Park in Nakai District, Khammouane Province, Laos, is one of the last remaining wildernesses in Southeast Asia. Nakai-Nam Theun covers approximately 4,270 km2 of the Annamite Range and the adjacent Nakai Plateau in Khammouane and Bolikhamsai Provinces. It was designated a national park on 15 February 2019 by Prime Ministerial Decree No. 36, 15 February 2019. It is managed by the Ministry of Agriculture and Forestry (MAF). It is adjacent to the Vu Quang National Park of Vietnam.
The Central Indochina dry forests are a large tropical and subtropical dry broadleaf forests ecoregion in Southeast Asia.
The southern white rhinoceros or southern white rhino is one of the two subspecies of the white rhinoceros. It is the most common and widespread subspecies of rhinoceros.
The northern Sumatran rhinoceros, also known as Chittagong rhinoceros or northern hairy rhinoceros, was the most widespread subspecies of Sumatran rhinoceros, as well as the only known subspecies native to mainland Asia.
The Bornean rhinoceros, also known as the eastern Sumatran rhinoceros or eastern hairy rhinoceros, is one of three subspecies of Sumatran rhinoceros. The subspecies was feared to be functionally extinct, with only one individual, a female named Pahu, surviving in captivity, and held in the state of Sabah. In April 2015, the Malaysian government declared the Bornean rhinoceros to be extinct in the wild in the Malaysian portion of Borneo. However, in March 2016, a young female rhino was captured in East Kalimantan, providing evidence of their continued existence. The International Union for Conservation of Nature (IUCN) classifies the subspecies as critically endangered.