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Encyclopedia > Tristan Albatross
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Tristan Albatross
Conservation status: Endangered
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Procellariiformes
Family: Diomedeidae
Genus: Diomedea
Species: D. dabbenena
Diomedea dabbenena
Mathews, 1929
Synonyms
Diomedea exulans dabbenena

The Tristan Albatross (Diomedea dabbenena) is a large seabird from the albatross family. One of the great albatrosses of the genus Diomedea, it was only recognised by some authorities as a full species in 1998. While not all scientists believe it is a full species, retaining it as a subspecies the Wandering Albatross, a 2004 study of the mitochondrial DNA of the Wandering Albatross species complex supported the split. Other studies have shown it to be the most genetically distinct member of the Wandering superspecies. It is, however, practically indistinguishable from the Wandering Albatross at sea; the Tristan Albatross is smaller and has a slightly darker back. Due to the difficulty in distinguishing them from Wandering Albatrosses their distribution at sea is still not fully know, but the use of satellite tracking has shown that they forage widely in the South Atlantic, with males foraging west of the breeding islands towards South America and females to the east towards Africa. At sea they feed mostly on squid, particularly from the family Histioteuthidae. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Binomial name Aptenodytes forsteri Gray, 1844 For other uses, see Animal (disambiguation). ... Typical Classes Subphylum Urochordata - Tunicatas Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders Many - see section below. ... Families Procellariidae Diomedeidae Hydrobatidae Pelecanoididae Procellariiformes (from the Latin procella, a storm) is an order of birds formerly called Tubinares and still called tubenoses in English. ... Genera Diomedea Thallasarche Phoebastria Phoebetria The albatrosses (from Portuguese Alcatraz, a pelican) are seabirds in the family Diomedeidae, which is closely allied to the petrels. ... Species (Linnaeus, 1758) (Robertson & Warham, 1992) (Roux et al, 1983) (Mathews, 1929) (Murphy, 1917) (Lesson, 1785) The great albatrosses are seabirds in the genus Diomedea in the albatross family. ... In biology, binomial nomenclature is the formal method of naming species. ... In scientific classification, synonymy is the existence of multiple systematic names to label the same organism. ... Seabirds are birds that spend much of their lives, outside the breeding season at least, at sea. ... Genera Diomedea Thalassarche Phoebastria Phoebetria The albatrosses, family Diomedeidae, are large seabirds allied to the procellarids, storm-petrels and diving-petrels in the order Procellariiformes (the tubenoses). ... Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ... Species (Linnaeus, 1758) (Robertson & Warham, 1992) (Roux et al, 1983) (Mathews, 1929) (Murphy, 1917) (Lesson, 1785) The great albatrosses are seabirds in the genus Diomedea in the albatross family. ... In biology, a species is the basic unit of biodiversity. ... In zoology, as in other branches of biology, subspecies is the rank immediately subordinate to a species. ... Mitochondrial DNA (mtDNA, or less popularly, mDNA) is DNA that is located in mitochondria. ... Headline text iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiInsert non-formatted text herehvgcyvIn biology, a cryptic species complex is a group of species that satisfy the scientific definition of species — that is, they are reproductively isolated from each other — but which are anatomically indistinguishable. ... Genetics (from the Greek genno γεννώ= give birth) is the science of genes, heredity, and the variation of organisms. ... The Atlantic Ocean is Earths second-largest ocean, covering approximately one_fifth of its surface. ... South America South America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. ... A satellite composite image of Africa Africa is the worlds second-largest and second-most populous continent, after Asia. ... Species 17 species and subspecies, see text Species bonnellii species-group Umbrella Squid, Histioteuthis bonnellii Histioteuthis machrohista reversa species-group Reverse Jewell Squid, Histioteuthis reversa Histioteuthis atlantica Histioteuthis altaninae hoylei species-group Flowervase Jewell Squid, Histioteuthis hoylei Histioteuthis arcturi celetaria subspecies-group Histioteuthis celetaria celetaria Histioteuthis celetaria pacifica corona subspecies...


The Tristan Albatrosses are endemic to the islands of the Tristan da Cunha group and Gough Island. The majority of the world's population nest of Gough, around 1500 pairs, there are also colonies on Inaccessible Island. They were formerly threatened by introduced species, rats, cats and pigs, but these have now been removed from their breeding islands. Today the main threat to the species is believed to be long-line fishing. In biology and ecology endemic means exclusively native to a place or biota, in contrast to cosmopolitan or introduced. ... Motto: Our faith is our strength Anthem: God Save the Queen Capital Edinburgh of the Seven Seas Status Dependency of Saint Helena Official language(s) English Governor Michael Clancy Administrator Mike Hentley Area 201 km² Population ~300 Currency Saint Helenian pound (SHP) at parity with the UK Pound Sterling (GBP... Orthographic projection over Gough Island Gough Island (also called Diego Alvarez) is a volcanic island rising from the South Atlantic Ocean to heights of over 900 metres (2950 ft) above sea level and has an area of approximately 65 km² (25 mi²). It includes small satellite islands and rocks such... Inaccessible Island (Dellbridge Islands) (in Antarctica) and the Inaccessible Islands (South Orkney Islands). ... Sweet clover (), introduced and naturalized to the U.S. from Eurasia as a forage and cover crop, supports insect biodiversity. ... Island restoration is the application of the principles of ecological restoration to islands and island groups. ... Long-line fishing is a commercial fishing technique that uses hundreds or even thousands of baited hooks hanging from a single line. ...


References

  • Brooke, M. (2004). Albatrosses And Petrels Across The World: Procellariidae. Oxford University Press, Oxford, UK ISBN 0-19-850125-0
  • Burg, T.M., & Croxall, J.P., (2004) "Global population structure and taxonomy of the wandering albatross species complex". Molecular Ecology 13: 2345-2355. [1]

External link

  • ARKive - images and movies of the Tristan albatross (Diomedea dabbenena)

 
 

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