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| eastern long-necked turtle | |
|---|---|
| Name | Eastern long-necked turtle |
| Genus | Chelodina |
| Species | longicollis |
| Authority | (Shaw, 1794) |
eastern long-necked turtle
The eastern long-necked turtle is a freshwater chelonian native to eastern Australia, notable for its elongated neck and cryptic behavior. It is of interest to herpetologists, conservationists, and aquarists while occurring across New South Wales, Queensland, Victoria and Tasmania regions where field studies by institutions such as the Australian Museum, Museums Victoria and the University of Sydney have documented its ecology. Major museums and zoological gardens, including the Tasmanian Museum and Art Gallery, the Queensland Museum and the Royal Botanic Gardens, Kew, have contributed to its specimen records and public outreach.
Described by George Shaw in 1794 during the era of naturalists like Johann Friedrich Gmelin and Carl Linnaeus, the species belongs to the genus Chelodina within the family Chelidae, which also contains taxa studied by the Natural History Museum, London and the Smithsonian Institution. Historical nomenclatural treatments appear in catalogues by the British Museum and were discussed in monographs linked to the Linnean Society of London and the Zoological Society of London. Contemporary taxonomic revisions involving researchers from the Australian National University and CSIRO have clarified relationships with congeneric species such as those referenced in works from the Royal Society and Proceedings of the Linnean Society. Type specimens and subsequent redescriptions feature in collections at the Natural History Museum of Denmark and the Muséum national d'Histoire naturelle, Paris.
The species exhibits a slender, elongate carapace and an extraordinarily long neck, morphological traits compared in comparative anatomy papers from Johns Hopkins University and Harvard University. Adults display cryptic brown to olive coloration similar to patterns documented in publications of the Field Museum and the American Museum of Natural History. Sexual dimorphism, as reported in journals such as Herpetologica and Journal of Zoology, includes variation in tail length and plastron shape noted by researchers at Monash University and the University of Melbourne. Morphometric data are archived in databases maintained by the Global Biodiversity Information Facility and Atlas of Living Australia.
The eastern long-necked turtle occupies freshwater systems across eastern Australia, with distribution records held by the Atlas of Living Australia, the Australian Virtual Herbarium and state agencies like the New South Wales Office of Environment and Heritage. It inhabits swamps, billabongs, floodplain lagoons and urban ponds similar to habitats monitored by the Bureau of Meteorology and catchment authorities such as the Murray–Darling Basin Authority. Observations in coastal wetlands near the Great Barrier Reef Marine Park and Bass Strait islands have been reported by conservation NGOs including WWF Australia and the Australian Conservation Foundation. Regional biodiversity surveys by Parks Victoria and Queensland Parks and Wildlife Service document its presence alongside species listed by the IUCN and BirdLife Australia in shared wetland ecosystems.
Nocturnal and crepuscular activity patterns have been recorded by researchers affiliated with the Australian Wildlife Conservancy and University of New England, and feeding ecology studies in journals like Ecology and Oecologia describe a diet including aquatic invertebrates and carrion comparable to trophic roles discussed in studies by the CSIRO Land and Water division. Predator-prey interactions involve species such as the Australian water rat (Hydromys), raptors documented by the Royal Society for the Protection of Birds, and introduced predators noted by the Invasive Species Council. Seasonal movements and responses to flood regimes are topics in reports by the Murray–Darling Basin Authority and the Commonwealth Scientific and Industrial Research Organisation. Parasite records appear in parasitology monographs from the Walter and Eliza Hall Institute.
Reproductive biology has been investigated in theses held by the University of Tasmania and research articles in Journal of Herpetology, reporting egg-laying in terrestrial nests and temperature-dependent sex determination themes explored in works by the Smithsonian Tropical Research Institute and the Max Planck Institute. Clutch size, incubation periods and juvenile growth rates are documented in field studies conducted by the Australian National Parks and Wildlife Service and published in conservation journals such as Biological Conservation. Life span estimates draw on longitudinal studies from institutions including the Adelaide Zoo and Edinburgh Zoo, and captive-breeding protocols are outlined by the Association of Zoos and Aquariums and the International Union for Conservation of Nature.
Assessment by national agencies and entries in databases curated by the IUCN, the Australian Government Department of Agriculture, Water and the Environment, and state departments indicate variable conservation concern depending on region, with threats including habitat loss from urban expansion tracked by local councils, water quality decline noted by the Environment Protection Authority, road mortality data compiled by universities such as Griffith University, and predation by feral cats and foxes documented by the Invasive Species Council. Conservation measures promoted by NGOs like Bush Heritage Australia and Landcare Australia include habitat restoration, wetland protection under Ramsar listings, and community science projects coordinated through the Atlas of Living Australia.
Human interactions range from presence in the pet trade regulated by state wildlife acts to cultural representation in exhibitions at institutions such as the National Museum of Australia and regional galleries. Indigenous knowledge holders and organizations including the Australian Institute of Aboriginal and Torres Strait Islander Studies have traditional ecological knowledge contributions relevant to the species. Educational programs by zoos, museums and universities — for example, guides from Taronga Zoo, Melbourne Zoo and the Australian Museum — feature the eastern long-necked turtle in outreach, while policy frameworks involving the Australian Government and state parliaments inform its protection and management.
Category:Chelodina Category:Reptiles of Australia