Dwarf cassowary

Last updated

Dwarf cassowary
Casuarius bennetti -Avilon Zoo, Rodriguez, Rizal, Philippines-8a.jpg
At Avilon Zoo
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Infraclass: Palaeognathae
Order: Casuariiformes
Family: Casuariidae
Genus: Casuarius
Species:
C. bennetti
Binomial name
Casuarius bennetti
Gould, 1857 [2]
Casuarius bennetti distribution map.png
Distribution of the dwarf cassowary
Synonyms
[3]
List
  • Casuarius bennetti westermannirogersi(Sclater 1874)
  • Casuarius westermanniSclater 1874
  • Casuarius papuanusSchlegel 1871
  • Casuarius bennetti papuanus(Schlegel 1871)
  • Casuarius goodfellowiRothschild 1914
  • Casuarius bennetti goodfellowi(Rothschild 1914)
  • Casuarius papuanus goodfellowi(Rothschild 1914)
  • Casuarius papuanus shawmayeriRothschild 1937
  • Casuarius bennetti shawmayeri(Rothschild 1937)
  • Casuarius foersteriRothschild 1913
  • Casuarius bennetti foersteri(Rothschild 1913)
  • Casuarius picticollis heckiRothschild 1899
  • Casuarius bennetti hecki(Rothschild 1899)
  • Casuarius keysseriRothschild 1912
  • Casuarius bennetti keysseri(Rothschild 1912)
  • Casuarius jamrachiRothschild 1904
  • Casuarius roseigularisRothschild 1905
  • Casuarius bennetti roseigularis(Rothschild 1905)
  • Casuarius rogersiRothschild 1928
  • Casuarius bennetti bennettiGould 1857
  • Casuarius edwardsiOustalet 1878
  • Casuarius bennetti edwardsi(Oustalet 1878)
  • Casuarius westermanni edwardsi(Oustalet 1878)
  • Casuarius claudiiOgilvie-Grant 1911
  • Casuarius bennetti claudii(Ogilvie-Grant 1911)
  • Casuarius picticollisSclater 1874
  • Casuarius bennetti picticollis(Sclater 1874)
  • Casuarius loriaeRothschild 1898
  • Casuarius bennetti loriae(Rothschild 1898)
  • Casuarius maculatusRothschild 1900
  • Casuarius bennetti maculatus(Rothschild 1900)

The dwarf cassowary (Casuarius bennetti), also known as Bennett's cassowary, little cassowary, mountain cassowary [2] or muruk, is the smallest of the three extant species of cassowaries.

Contents

Taxonomy

Dwarf cassowary in Lae, New Guinea Dwarf Cassowary Lae.jpg
Dwarf cassowary in Lae, New Guinea

The scientific name commemorates the Australian naturalist George Bennett. [4] He was the first scientist to examine these birds after a few were brought to Australia aboard a ship. Recognising them as a new species of cassowary, he sent specimens back to England, where other taxonomists confirmed his perception. On the west side of Cenderawasih Bay, western Papua, there is a distinctive form that may merit a split. C. papuanus is the tentative name. [2] There are no officially recognised subspecies, however, some authors believe there should be. [5]

The Karam or Kalam people [6] of the New Guinea Highlands classify bats and flying birds as one group, yaket, and the dwarf cassowary, a very large, wingless, flightless bird as another, kobtiy. Yaket are bony with wings and fly in the air, while kobtiy are bony without wings and are terrestrial and of the forest. They distinguish kobtiy from other bony, wingless animals because kobtiy are not quadrupedal like dogs and lizards and are not limbless like snakes. [7] (See Kalam languages.)

John Gould first identified the dwarf cassowary from a specimen from New Britain, in 1857. [2]

Description

Drawing from Gatherings of a naturalist in Australasia by George Bennett (1860) Mooruk-Wolf.jpg
Drawing from Gatherings of a naturalist in Australasia by George Bennett (1860)

The dwarf cassowary is a large bird but is smaller than other living cassowaries (the southern cassowary and northern cassowary). It is between 99 and 150 cm (3 ft 3 in and 4 ft 11 in) long and weighs between 17.6 and 26 kg (39 and 57 lb). [2] It is a flightless bird with hard and stiff black plumage, a low triangular casque, pink cheek and red patches of skin on its blue neck. [2] Compared to other cassowaries, the dwarf cassowary is shorter, with a tarsi length of 24.5 cm (9.6 in), with a slightly smaller bill, at 11 to 12.2 cm (4.3 to 4.8 in). [2] The feet are large and powerful, equipped with dagger-like claws on the inner toe. Both sexes are similar. Females have longer casques, brighter bare skin colour and are larger in size.

Range and habitat

The dwarf cassowary is distributed throughout mountain forests of New Guinea, New Britain, and Yapen Island, [8] at elevations up to 3,300 m (10,800 ft). In areas without other species of cassowaries, it will live in the lowlands also. [2] Its range of occurrence range is approximately 258,000 km2 (100,000 sq mi). [9]

Ecology

The species feeds mainly on fallen fruits or fruits that they pluck from shrubs, [10] and small animals and insects. Dwarf cassowaries use the crest on their head to sort through leaf litter and reveal many sources of food, such as fungi, insects, plant tissue, and small vertebrates, including lizards and frogs. [10] A solitary bird, it pairs only during breeding season. [2] It possibly undertakes seasonal migrations in part of its range. [1]

Conservation

Egg of Dwarf Cassowary CasuariusBennettiiEgg.jpg
Egg of Dwarf Cassowary
Chicks CasuariusBennettiiChickWolf.jpg
Chicks

The dwarf cassowary has been classified as Near Threatened by the IUCN from 2004 to 2013 due to pressure by habitat loss, habitat degradation, being hunted for food, and often being kept in captivity. However, the species was downgraded to Least Concern in 2015, as current populations appear to be stable (although population trends remain generally unknown) and there is substantially less hunting pressure than in the past. [1] [9]

Related Research Articles

<span class="mw-page-title-main">Cassowary</span> Genus of flightless birds

Cassowaries are flightless birds of the genus Casuarius in the order Casuariiformes. They are classified as ratites: flightless birds without a keel on their sternum bones. Cassowaries are native to the tropical forests of New Guinea, the Aru Islands (Maluku), and northeastern Australia.

<span class="mw-page-title-main">Casuariidae</span> Family of birds

The bird family Casuariidae has four surviving members: the three species of cassowary and the emu.

<span class="mw-page-title-main">Flightless bird</span> Birds that cannot fly

Flightless birds are birds that, through evolution, lost the ability to fly. There are over 60 extant species, including the well-known ratites and penguins. The smallest flightless bird is the Inaccessible Island rail. The largest flightless bird, which is also the largest living bird in general, is the common ostrich.

<span class="mw-page-title-main">Southern cassowary</span> Species of bird

The southern cassowary, also known as double-wattled cassowary, Australian cassowary, or two-wattled cassowary, is a large flightless black bird, found in Indonesia, Papua New Guinea, and northeastern Australia. It is one of the three living species of cassowary, alongside the dwarf cassowary and the northern cassowary. It is a ratite and therefore related to the emu, ostriches, rheas and kiwi.

<span class="mw-page-title-main">Casuariiformes</span> Order of birds

The Casuariiformes is an order of large flightless birds that has four surviving members: the three species of cassowary, and the only remaining species of emu. They are divided into either a single family, Casuariidae, or more typically two, with the emu splitting off into its own family, Dromaiidae.

<span class="mw-page-title-main">Northern cassowary</span> Species of bird

The northern cassowary also known as the one-wattled cassowary, single-wattled cassowary, or golden-necked cassowary, is a large, stocky flightless bird of northern New Guinea. It is one of the three living species of cassowary, alongside the dwarf cassowary and the southern cassowary. It is a member of the superorder Paleognathae.

<span class="mw-page-title-main">Mangrove monitor</span> Species of lizard

The mangrove monitor, mangrove goanna, or Western Pacific monitor lizard is a member of the monitor lizard family with a large distribution from northern Australia and New Guinea to the Moluccas and Solomon Islands. It grows to lengths of 3.5 to 4 ft. It is also known as wbl yb in the Kalam language of Papua New Guinea.

<span class="mw-page-title-main">Fauna of New Guinea</span> Native animals of New Guinea

The fauna of New Guinea comprises a large number of species of mammals, reptiles, birds, fish, invertebrates and amphibians.

<span class="mw-page-title-main">Blyth's hornbill</span> Species of bird

Blyth's hornbill, also known as the Papuan hornbill, is a large hornbill inhabiting the forest canopy in Wallacea and Melanesia. Its local name in Tok Pisin is kokomo.

<span class="mw-page-title-main">Wattle (anatomy)</span> Fleshy growth on the head or neck of a bird

A wattle is a fleshy caruncle hanging from various parts of the head or neck in several groups of birds and mammals. Caruncles in birds include those found on the face, wattles, dewlaps, snoods, and earlobes. Wattles are generally paired structures but may occur as a single structure when it is sometimes known as a dewlap. Wattles are frequently organs of sexual dimorphism. In some birds, caruncles are erectile tissue and may or may not have a feather covering.

<i>Cerbera floribunda</i> Species of tree in the family Apocynaceae

Cerbera floribunda, commonly known as cassowary plum, grey milkwood, or rubber tree, is a plant in the family Apocynaceae which is native to the region from Sulawesi to the Solomon Islands, including north east Queensland.

Ralph Neville Hermon Bulmer was a twentieth-century ethnobiologist who worked in Papua New Guinea, particularly with the Kalam people. From 1974 he made a radical shift by changing the role of his Kalam informants and collaborators, allowing them to shape the purpose of ethnography and to make them authors rather than consultants. Bulmer's tree frog is named after him.

Kalam is a Kalam language of Papua New Guinea. It is closely related to Kobon, and shares many of the features of that language. Kalam is spoken in Middle Ramu District of Madang Province and in Mount Hagen District of Western Highlands Province.

Casuarius lydekkeri, also called the pygmy cassowary, is an extinct species of cassowary.

<span class="mw-page-title-main">Karuka</span> Species of tree in the family Pandanaceae and regional food crop

The karuka is a species of tree in the screwpine family (Pandanaceae) and an important regional food crop in New Guinea. The nuts are more nutritious than coconuts, and are so popular that villagers in the highlands will move their entire households closer to trees for the harvest season.

<span class="mw-page-title-main">Vogelkop–Aru lowland rain forests</span> Ecoregion in Indonesia

The Vogelkop–Aru lowland rain forests is a tropical moist forest ecoregion in Indonesia. The ecoregion covers the peninsular lowlands of western New Guinea, along with the Aru Islands and other nearby islands.

<span class="mw-page-title-main">Southeastern Papuan rain forests</span>

The Southeastern Papuan rain forests is a tropical moist forest ecoregion in southeastern New Guinea. The ecoregion covers the mountainous center and coastal lowlands of the Papuan Peninsula.

<span class="mw-page-title-main">Southern New Guinea lowland rain forests</span> Ecoregion in New Guinea

The Southern New Guinea lowland rain forests is a tropical moist forest ecoregion in southeastern New Guinea. The ecoregion covers portions of New Guinea's southern lowlands.

<span class="mw-page-title-main">Casque (anatomy)</span> Anatomical feature in birds

A casque is an anatomical feature found in some species of birds, reptiles, and amphibians. In birds, it is an enlargement of the bones of the upper mandible or the skull, either on the front of the face, or the top of the head, or both. The casque has been hypothesized to serve as a visual cue to a bird's sex, state of maturity, or social status; as reinforcement to the beak's structure; or as a resonance chamber, enhancing calls. In addition, they may be used in combat with other members of the same species, in the gathering of food, or in thermoregulation.

<i>Xanthophyllum octandrum</i> Species of tree in the family Polygalaceae

Xanthophyllum octandrum, commonly known as Macintyre's boxwood, false jitta, yellow boxwood or sovereignwood, is a slow-growing tree in the milkwort family Polygalaceae which has the potential to reach thousands of years of age. It is endemic to coastal northeastern Queensland, Australia.

References

  1. 1 2 3 BirdLife International (2016). "Casuarius bennetti". IUCN Red List of Threatened Species . 2016: e.T22678111A92755192. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22678111A92755192.en . Retrieved 19 November 2021.
  2. 1 2 3 4 5 6 7 8 9 Davies, S.J.J.F. (2003). "Cassowaries". In Hutchins, Michael (ed.). Grzimek's Animal Life Encyclopedia. Vol. 8 Birds I Tinamous and Ratites to Hoatzins (2nd ed.). Farmington Hills, Michigan: Gale Group. pp. 75–80. ISBN   0-7876-5784-0.
  3. Peron, Richard. "Taxonomy of the Genus Casuarius". Archived from the original on 2016-03-05. Retrieved 2016-05-04.
  4. Gotch, A.F. (1995) [1979]. "Cassowaries". Latin Names Explained. A Guide to the Scientific Classifications of Reptiles, Birds & Mammals. London: Facts on File. pp. 178–179. ISBN   0-8160-3377-3.
  5. Avibase 2009
  6. "Dialects of Papua New Guinea: Kalam" . Retrieved 2014-01-08.
  7. Bulmer, Ralph (1967). "Why is the Cassowary Not a Bird? A Problem of Zoological Taxonomy Among the Karam of the New Guinea Highlands". Man. 2 (1): 5–25. doi:10.2307/2798651. JSTOR   2798651.
  8. Clements, James (2007). The Clements Checklist of the Birds of the World (6th ed.). Ithaca, New York: Cornell University Press. ISBN   978-0-8014-4501-9.
  9. 1 2 BirdLife International (2008). "Dwarf Cassowary - BirdLife Species Factsheet". Data Zone. Retrieved 6 Feb 2009.
  10. 1 2 "Casuarius bennetti (Dwarf cassowary)". Animal Diversity Web .

Wikisource-logo.svg This article incorporates text from a publication now in the public domain :  Chisholm, Hugh, ed. (1911). "Cassowary". Encyclopædia Britannica . Vol. 6 (11th ed.). Cambridge University Press. p. 463.

Further reading