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The Flatback Turtle, Natator depressus, is a sea turtle that is endemic to the continental shelf of Australia. The conservation status of a species is an indicator of the likelihood of that species remaining extant either in the present day or the near future. ...
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The Siberian Tiger is a subspecies of tiger that are critically endangered. ...
The IUCN Red List of Threatened Species (also known as the IUCN Red List and Red Data List), created in 1963, is the worlds most comprehensive inventory of the global conservation status of plant and animal species and can be found here. ...
Scientific classification redirects here. ...
For other uses, see Animal (disambiguation). ...
Classes See below Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. ...
Orders Crocodilia - Crocodilians scary crocodiles. ...
Families See text Turtles are reptiles of the order Testudinata, most of whose body is shielded by a special bony shell developed from their ribs. ...
Genera Caretta Lepidochelys Chelonia Eretmochelys Natator Dermochelys Sea turtles are large, ocean-dwelling turtles. ...
Year 1908 (MCMVIII) was a leap year starting on Wednesday (link will display the full calendar) of the Gregorian calendar (or a leap year starting on Tuesday of the 13-day-slower Julian calendar). ...
Latin name redirects here. ...
Samuel Garman (1846- 1927) was a naturalist/ zoologist from Pennsylvania. ...
Year 1880 (MDCCCLXXX) was a leap year starting on Thursday (link will display the full calendar) of the Gregorian calendar (or a leap year starting on Tuesday of the 12-day slower Julian calendar). ...
Genera Family Cheloniidae (Oppel, 1811) Caretta Chelonia Eretmochelys Lepidochelys Natator Family Dermochelyidae Dermochelys Family Protostegidae (extinct) Family Toxochelyidae (extinct) Family Thalassemyidae (extinct) Sea turtles (Superfamily Chelonioidea) are turtles found in all the worlds oceans except the Arctic Ocean . ...
In biology and ecology endemic means exclusively native to a place or biota, in contrast to cosmopolitan or introduced. ...
Sediment Rock Mantle The global continental shelf, highlighted in cyan The continental shelf is the extended perimeter of each continent and associated coastal plain, which is covered during interglacial periods such as the current epoch by relatively shallow seas (known as shelf seas) and gulfs. ...
Anatomy
The carapace of the adult is on average 90 cm long. This is low domed, the edge is upturned and has four pairs of costal scales - fewer than other marine turtles of the region. An olive-grey colour is found on the upper parts, and it is paler underneath. A single pair of scales are located at the front of the head, which also distinguish this species.[1] Genera Family Cheloniidae (Oppel, 1811) Caretta Lepidochelys Chelonia Eretmochelys Natator Family Dermochelyidae Family Protostegidae (extinct) Family Toxochelyidae (extinct) Family Thalassemyidae (extinct) ground turtles (Chelonioidea) are turtles found in all the worlds oceans with the exception of the Arctic Ocean, and some species travel between oceans. ...
They can grow up to one meter in length. The metre, or meter (symbol: m) is the SI base unit of length. ...
Distribution Flatback turtles are found in coastal waters. The species may feed in the waters off Indonesia and Papua New Guinea, but it nests only in Australia. Nesting occurs across the top half of Australia, from Exmouth in Western Australia to Mon Repos in Queensland. The most significant breeding site is Crab Island in the western Torres Strait. Breeding may also occur on the islands of the southern Great Barrier Reef, and on mainland beaches and offshore islands north of Gladstone. Exmouth is a town on the tip of the North West Cape in Western Australia. ...
Vyborg from the tower of the castle. ...
Crab Island is an island in the Torres Strait, which lies between Australia and the Melanesian island of New Guinea. ...
Torres Strait and islands The Torres Strait - Cape York Peninsula is at the bottom; several of the Torres Strait Islands can be seen strung out towards Papua New Guinea to the north. ...
The Great Barrier Reef is the worlds largest coral reef system,[1][2] composed of over 2,900 individual reefs[3] and 900 islands stretching for 2,600 kilometres (1,616 mi) over an area of approximately 344,400 square kilometres (132,974 sq mi). ...
For other uses, see Beach (disambiguation). ...
For other uses, see Gladstone (disambiguation). ...
 Natator depressa distribution map. Red circles show major nesting sites.
Ecology and life history
Habitat Flatback turtles are usually found in bays, shallow, grassy waters, coral reefs, estuaries and lagoons on the northern coast of Australia and off of the coast of Papua New Guinea.
Trophic ecology The Flatback Turtle is known to be rather broad in its eating habits and can eat a variety such as seagrass, marine invertebrates (such as mollusks, jellyfish and shrimp) and fish. It also is known to be a consumer of soft coral, sea cucumbers and other soft-bodied creatures.[1]
Nesting The Flatback turtle is unusual because it lays fewer, but larger eggs than the other sea turtle species. Females emerge onto the beach on which they hatched more than 30 years ago and make their way up the beach to lay their eggs. This takes around an hour and a half. The female digs a pit using her front flippers to clear away the topmost layer of dry sand,. She then uses her rear flippers to dig a small egg chamber. After laying between 50 and 75 eggs she covers them first with her hind flippers, and then flings sand back with her front flippers. Females will lay a clutch of eggs around every 16-17 days during the nesting season, with between one and four nests being laid in total. They will only nest every 2-3 years. There are around 54 eggs in each clutch, and the rookeries are usually small.[1] Genera Family Cheloniidae (Oppel, 1811) Caretta Chelonia Eretmochelys Lepidochelys Natator Family Dermochelyidae Dermochelys Family Protostegidae (extinct) Family Toxochelyidae (extinct) Family Thalassemyidae (extinct) Sea turtles (Superfamily Chelonioidea) are turtles found in all the worlds oceans except the Arctic Ocean . ...
A flipper is a digitless, typically flat limb evolved for movement through water. ...
These eggs are vulnerable to predation by dingoes, sand goannas (Varanus gouldii) and the introduced pest species - the fox. An altered ecology at known nesting sites, such as Port Hedland, have resulted in disturbances to the breeding behaviour of the turtle. Adult specimens are also found in the nets of fishing trawlers, and are still consumed by the indigenous peoples of its distribution range.[1] For other uses, see Dingo (disambiguation). ...
Port Hedland is Australias biggest mineral port. ...
Male turtles never return to the shore, as mating occurs at sea.
Hatching Hatching is the most dangerous time for flatback turtles. Guided by the low, open horizon, the newborns make a dash for the sea. Only safety in numbers will protect them from birds and crabs. However, even the sea is not safe. Sharks and fish partol shallow waters, waiting to gobble up the babies. Scientists estimate only 1 out of 100 turtles live to become an adult. However, as these turtles become adults there are very few organisms that hunt these fascinating creatures. The survivorship curve is known as a type III because there is high mortality for these animals as hatchlings but there is a very low mortality rate as they become older.
Naming and taxonomic history This species is contained by a monotypic genus, Natator, that is found in the Cheloniidae family. depressus, the species indicator (the second part of the scientific name means "flat" in Latin. This refers to the flatness of the Flatback's shell. Monotypic is an adjective, that refers to a taxonomic group with only one type: in botany it means that a taxon has only one species; Ginkgo is a monotypic genus, while Ginkgoaceae is a monotypic family. ...
Genera Caretta Lepidochelys Chelonia Eretmochelys Natator Dermochelys Sea turtles are large, ocean-dwelling turtles. ...
The Bardi people called this animal barwanjan, and it was known to the Wunambil as madumal.[1] The Bardi people are the Indigenous Australians from the area around Broome and parts of the Dampier Archipelago in the Kimberley region of Western Australia. ...
Conservation The species is considered vulnerable to extinction in Western Australia,[1] but the Red list of the IUCN notes that is data deficient and unable to be correctly assessed.[2] Slogan or Nickname: Wildflower State or the Golden State Other Australian states and territories Capital Perth Government Constitutional monarchy Governor Ken Michael Premier Alan Carpenter (ALP) Federal representation - House seats 15 - Senate seats 12 Gross State Product (2005-06) - Product ($m) $107,910 (4th) - Product per capita $53,134/person...
The IUCN Red List of Threatened Species (also known as the IUCN Red List and Red Data List), created in 1963, is the worlds most comprehensive inventory of the global conservation status of plant and animal species. ...
The World Conservation Union or International Union for Conservation of Nature and Natural Resources (IUCN) is an international organization dedicated to natural resource conservation. ...
If this species is not protected, it is likely that these turtles will become extinct in the foreseeable future. If this species disappears, the ecosystems it is a part of will surely crumble. The seagrasses these turtles feed on are breeding grounds for certain organisms that can only survive if the grass is kept short, much like the grass in our front yard. The organisms that thrive in the seagrass would die out, causing a chain reaction of the organisms that feed off of them to die out and so on.
See also Genera Family Cheloniidae (Oppel, 1811) Caretta Lepidochelys Chelonia Eretmochelys Natator Family Dermochelyidae Family Protostegidae (extinct) Family Toxochelyidae (extinct) Family Thalassemyidae (extinct) Sea turtles (Chelonioidea) are turtles found in all the worlds oceans with the exception of the Arctic Ocean, and some species travel between oceans. ...
Genera Family Cheloniidae (Oppel, 1811) Caretta Chelonia Eretmochelys Lepidochelys Natator Family Dermochelyidae Dermochelys Family Protostegidae (extinct) Family Toxochelyidae (extinct) Family Thalassemyidae (extinct) Sea turtles (Superfamily Chelonioidea) are turtles found in all the worlds oceans except the Arctic Ocean . ...
References - ^ a b c d e f Burbidge, Andrew A [2004]. Threatened animals of Western Australia. Department of Conservation and Land Management, 110, 114. ISBN 0 7307 5549 5.
- ^ Red List Standards & Petitions Subcommittee (1996). Natator depressus. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 12 May 2006. Database entry includes a lengthy justification of why this species is listed as data deficient
The IUCN Red List of Threatened Species (also known as the IUCN Red List and Red Data List), created in 1963, is the worlds most comprehensive inventory of the global conservation status of plant and animal species and can be found here. ...
The World Conservation Union or International Union for the Conservation of Nature and Natural Resources (IUCN) is an international organization dedicated to natural resource conservation. ...
External links - Great Barrier Reef Marine Park Authority: Flatback Turtles
- IUCN Red List of Threatened Species: Flatback Turtle
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