Aptenodytes

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Aptenodytes
Temporal range: Pliocene to recent[1]
Emperor penguins swimming
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Sphenisciformes
Family: Spheniscidae
Genus: Aptenodytes
Miller, JF, 1778
Type species
Aptenodytes patagonicus

 
Aptenodytes p.
patagonicus
 
Aptenodytes patagonicus
halli
 
Aptenodytes forsteri
  breeding grounds

The genus Aptenodytes contains two extant species of penguins collectively known as "the great penguins".[2]

Etymology

The name "Aptenodytes" is a composite of Ancient Greek elements, "ἀ-πτηνο-δύτης" (without-wings-diver).[3]

Taxonomy

Combined morphological and molecular data[4] have shown the genus Aptenodytes to be basal to all other living penguins, that is, the genus split off from a branch which led to all other species. DNA evidence suggests this split occurred around 40 million years ago.[5] This had been foreshadowed by an attempt to classify penguins by their behavior, which also predicted the genus' basal nature.[6]

South Georgia Island, where over 30 colonies of king penguin reside. An important cause for reproductive failure in some penguin species is mistiming between parents for incubation relief.[7]

Species

Two monotypic species are extant:[8]


Genus Aptenodytes – Miller, JF, 1778 – two species
Common name Scientific name and subspecies Range Size and ecology IUCN status and estimated population
King penguin

Aptenodytes patagonicus
Miller, JF, 1778

Two subspecies
  • Aptenodytes patagonicus patagonicus
  • Aptenodytes patagonicus halli
Breeds on the
subantarctic islands between 45° and 55° S at the northern reaches of Antarctica, as well as Tierra del Fuego, the Falkland Islands and other temperate islands of the region.
Map of range
 Size: 90 cm (3 ft) tall, weighing 11 to 16 kg (24 to 35 lb), The upper parts are steel blue-grey, darkening to black on the head, the belly is white fading to orange on the upper breast with bright orange ear patches. The black bill is long and slender. The lower mandible bears a striking pink or orange-coloured mandibular plate

Habitat:

Diet: 		 LC 


Emperor penguin

Aptenodytes forsteri
Gray, 1844 		Circumpolar distribution in the Antarctic between the 66° and 77° S. It almost always breeds on stable pack ice near the coast and wander up to 18 km (11 mi) offshore.[9]
Map of range 		Size: 122 cm (4 ft) tall, weighing 22–37 kg (48.5–82 lb), the adult has deep black dorsal feathers, covering: the head, chin, throat, back, dorsal part of the flippers and tail. The underparts of the wings and belly are white, becoming pale yellow in the upper breast, and ear patches are bright yellow. The upper mandible is black and the lower mandible can be pink, orange or lilac. Males and females are similar in size and coloration.

Habitat:

Diet: 		 NT 



References

Aptenodytes patagonicus, the king penguin
  1. ISBN 978-1-877385-59-9
    .
  2. ISBN 978-1-4391-4817-4
    .
  3. ^ "British Museum - King penguin". British Museum. 2008-08-05. Archived from the original on August 5, 2008. Retrieved 2020-09-24.
  4. S2CID 85673628
    .
  5. PMID 16519228
    .
  6. ^ Jouventin P (1982). "Visual and vocal signals in penguins, their evolution and adaptive characters". Adv. Ethol. 24: 1–149.
  7. ^ a b "Penguins: Reproduction". seaworld.org. SeaWorld Parks & Entertainment, Inc. 2020. Retrieved 29 December 2020.
  8. ^ "Zoological Nomenclature Resource: Ciconiiformes (Version 9.004)". www.zoonomen.net. 2008-07-05.
  9. ^ University of Michigan Museum of Zoology. "Aptenodytes forsteri". Archived from the original on 23 December 2007. Retrieved 2008-01-01.

External links

Media related to Aptenodytes at Wikimedia Commons

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