| Undun | |
|---|---|
| Danau Undun (Indonesian) | |
  Undun | |
| Location | Landu Leko District, Indonesia |
| Coordinates | 10°30′56″S123°22′1″E / 10.51556°S 123.36694°E |
| Basin countries | Indonesia |
| Surface area | 6,388 ha (15,790 acres) [1] |
Undun (Indonesian : Danau Undun) [2] is a lake on the Indonesian island of Roti in the province of East Nusa Tenggara, in the Lesser Sunda Islands.
The Undun located in the district Landu Leko (in the Rote Ndao Regency) on the peninsula Tapuafu, which forms the northern part of the island of Roti. To the west is the greater salt lake Usipoka. The nearest town is Kupang. [1]
Only on Undun and Oendui, the lake located to the south of Usipoka, can one find the last extant population of Chelodina mccordi roteensis, a subspecies of the Roti Island snake-necked turtle. The range of the subspecies is confined only to this area due to severe persecution and is also here close to extinction. [2] [3] Researchers are urgently demanding a reserve, for example, on the peninsula Tapuafu that includes Lakes Usipoka, Undun and Oendui and the surrounding, untouched wetlands of Tanjung Pukuwatu. Since this area has a high biodiversity, it is possible undescribed species could be found in this area. [2]
The area also contains endemic birds and is possibly an important stopover place for migratory birds such as the Australian pelican. [1]
The eastern long-necked turtle is an east Australian species of snake-necked turtle that inhabits a wide variety of water bodies and is an opportunistic feeder. It is a side-necked turtle (Pleurodira), meaning that it bends its head sideways into its shell rather than pulling it directly back.
Chelodina, collectively known as snake-necked turtles, is a large and diverse genus of long-necked chelid turtles with a complicated nomenclatural history. Although in the past, Macrochelodina and Macrodiremys have been considered separate genera and prior to that all the same, they are now considered subgenera of the Chelodina, further Macrochelodina and Macrodiremys are now known to apply to the same species, hence Chelydera is used for the northern snake-necked turtles.
The Roti Island snake-necked turtle, also commonly known as McCord's snakeneck turtle, is a critically endangered turtle species. It is named after Rote Island in Indonesia where it was first discovered. Some individuals were later discovered in East Timor, and are considered a distinct subspecies.
The New Guinea snake-necked turtle is a species of turtle in the family Chelidae. The species is found almost exclusively within Western Province, Papua New Guinea.
The oblong turtle, also known commonly as the narrow-breasted snake-necked turtle, southwestern snake-necked turtle, (western) long-neck(ed) turtle, and as yaagan in Noongar language, is a species of turtle in the family Chelidae. The species is endemic to the southwestern part of Western Australia.
Parker's snake-necked turtle is a species of turtle in the family Chelidae.
Pritchard's snake-necked turtle is a species of turtles in the family Chelidae. The species is endemic to a restricted area of Central Province, Papua New Guinea.
Reimann's snake-necked turtle is a species of turtle in the family Chelidae. The species is endemic to Oceania and Southeast Asia.
The northern snake-necked turtle or northern long-necked turtle is a species of turtle in the family Chelidae or Austro-South American Side-necked Turtles. It is native to northern Australia and southern New Guinea.
Mauremys reevesii, commonly known as the Chinese pond turtle, the Chinese three-keeled pond turtle, or Reeves' turtle, is a species of turtle in the family Geoemydidae, a family which was formerly called Bataguridae. The species is native to East Asia.
The East African black mud turtle, also known as the Pan terrapin, is a species of turtle in the family Pelomedusidae, native to eastern and southeastern Africa.
Chelodina canni, also known commonly as Cann's snake-necked turtle, is a species of turtle in the family Chelidae. The species is endemic to Australia, where it is found in the northern and northeastern parts of the continent. It has a narrow zone of hybridization with its related species the eastern snake-necked turtle, C. longicollis. For many years C. canni was assumed to be the same species as C. novaeguineae from New Guinea. However, in 2002 it was shown that these two species differ both morphologically and genetically, and therefore C. canni was separated and described as a unique species.
Chelodina (Chelydera) burrungandjii, the sandstone snake-necked turtle or Arnhem Land long-necked turtle, is a medium-sized turtle reaching carapace lengths of 316 mm. The species is found in the sandstone plateaus and escarpments and the plunge pools of Arnhem Land of the Northern Territory. The species had been long recognised as valid. However, it had been difficult to research due to the remoteness of its habitat. Efforts to breed this species in captivity had been largely unsuccessful, until National Aquarium Herpetologist Matthew Benedict lead a successful breeding project in 2021. The species occurs in proximity to Chelodina rugosa, to which it is closely related. For the most part the two species are parapatric in distribution. However, they do come together in limited locations such as plunge pools at the base of the escarpments. In these areas there is hybridization between the species.
Emydura macquarii is a species of turtle in the family Chelidae. It is a wide-ranging species that occurs throughout many of the rivers of the eastern half of Australia. It is found primarily in the Macquarie River basin and all its major tributaries, along with a number of coastal rivers up the New South Wales Coast. It is also found in the coastal Queensland rivers and the Cooper Creek ecosystem, along with Fraser Island.
Chelodina (Chelydera) kuchlingi, commonly known as Kuchling's long-necked turtle or Kuchling's turtle, is a species of freshwater turtle in the family Chelidae. The species is endemic to Australia.
Chelodina (Chelydera) walloyarrina, the Kimberley long neck turtle or Kimberley snake-necked turtle, is a large species of long neck turtle endemic to the Kimberley region of Western Australia. In recent years, it has been unclear as to whether this was a valid species or not. It has been recognised as such by the 2017 and 2021 editions of the Turtle Checklist. In a recent paper it waslisted as a subspecies of Chelodina burrungandjii by Kehlmaier et al. 2019, however, that publication did not actually assess the type of the species nore did it analyse it. Hence it should be considered a full species.
Lake Ira Lalaro is a freshwater lake in Mehara, Subdistrict Tutuala, Lautém District, East Timor. It is the largest of the island of Timor, and thus too of the country. The lake is part of the Mount Paitchau Important Bird Area. The lake waters and that of Irasiquero River are a closed aquatic system; they lie within a huge polje. It covers between 10–55 square kilometres (3.9–21.2 sq mi) while the authigenic catchment basin covers 406 square kilometres (157 sq mi).
Elseya rhodini, the southern New Guinea stream turtle, is a recently described aquatic species of chelid turtle found south of the central ranges of New Guinea. It inhabits small streams that flow into the major river drainage's south of the ranges.
Scott A. Thomson is an Australian herpetologist, paleontologist, and taxonomist, specialising in turtles of the family Chelidae.
Chelodina gunaleni, also known commonly as Gunalen's long-necked turtle and Gunalen's snake-necked turtle, is a species of turtle in the family Chelidae. The species is endemic to the lowlands of west-central West Papua, Indonesia, south of the central ranges.