Dusicyon australis
|
||
| Kingdom | Animalia |
Illustration by John Gerrard Keulemans (1842-1912). This image is in the public domain because its copyright has expired. This applies to the European Union, Canada, the United States and those countries with a copyright term of life of the author plus 70 years. |
| Phylum | Chordata | |
| Class | Mammalia | |
| Order | Carnivora | |
| Family | Canidae | |
| Genus | Dusicyon | |
| Species | Dusicyon australis |
|
| Authority | (Kerr, 1792) | |
| English Name | Falkland Islands Wolf, Falklands Wolf, Falkland Dog, Warrah, Antartic Wolf, Falkland Fox | |
| Dutch Name | Falklandwolf, Falkland Hond, Warrah, Antarctische Wolf | |
| French Name | Loup des Falkland, Loup des Iles Falklands | |
| German Name | Falklandfuchs, Falklandwolf | |
| Hungarian Name | Falklandi pamparóka | |
| Portuguese Name | Raposa das Malvinas, Raposa de Falkland, Raposa da Ilha de Falkland, Lobo da Ilha de Falkland, Lobo das Malvinas | |
| Spanish Name | Zorro de las Malvinas, Zorro Malvinero, Zorro-lobo de las Malvinas, Zorro-lobo Malvinero | |
| Comments | Its current scientific name is Dusicyon australis, meaning foolish dog of the south, alluding to its lack of fear of man. | |
| Characteristics | The Falkland Islands Wolf is larger than any others of the South American
canids. It stood up about 60 cm (24 inches) high at the shoulders, and had
a brownish-grey fur with black ears and a paler under body. This species
shows also a distinct white tail-tip. This is sometimes regarded, as a
sign of domestication, and some skull characters too, seems to point in
this direction. It was said that this species did bark just like a
domestic dog.
Falkland Islands wolves on West Falkland were smaller, redder and darker, with finer fur. In 1844 Bartholomew Sulivan, second lieutenant on Beagle voyage, wrote to Darwin: “It is quite incorrect what we were told respecting the difference in the Foxes of the two Islands. They are the same both in size and colour. We have never been able to detect any difference.” Oldfield Thomas measured skulls of the East and West Falkland animals and reached opposite conclusion though said “no certainty is possible”, called them Dusicyon darwini of East Falkland and Dusicyon australis of West Falkland. Nowadays these two different Falkland Inlands wolves are sometimes seen as subspecies. Dusicyon australis australis (Kerr, 1792), and Dusicyon australis darwinii (Thomas, 1914). |
|
| Range & Habitat | This species lived on the barren Falkland Islands, nearly 500 km from the South American mainland. It was the only land mammal of these islands. Sometimes two subspecies are named: Dusicyon australis australis (Kerr, 1792), and Dusicyon australis darwinii (Thomas, 1914). D. a. australis lived on West Falkland, and D. a. darwini lived on East Falkland. | |
| Food | This species most likely survived on a diet of seabirds, seal pups, and probably even on vegetation. It was the only predatory mammal on the Falklands Islands. | |
| Reproduction | Nothing is known about the Falkland Islands Wolf’s reproductive or social behaviour. | |
| History & Population | It
seems impossible that any dog species could have reached these remote
islands on its own and survived the harsh conditions of the Ice Ages,
whereas its nearest relative on the mainland would have become extinct.
Therefore, it has been suggested that the Falkland Islands Wolf is a
result of early domestication, either of a South American species that
became extinct, or as the product of an early hybridisation between a form
of domestic dog and an as yet unknown South American canid. Prehistoric
man brought the dogs to the Falkland Islands during the early Holocene.
Here these dogs stayed behind after the first inhabitants of the islands
either died out or departed. They sheltered in burrows that they dug
themselves. Captain
Strong and the crew of the Welfare first discovered the Falkland Islands
Wolf in 1692. He captured one and kept it for several months as the ship's
dog until the animal, started by firing of the ship's guns, jumped
overboard. In 1765 Commodore Byron claimed the Falkland Islands for Great
Britain. His account shows that in those days the Falkland Islands Wolf
was rather numerous. Byron was the first to bring a skin of this species
to Europe. Kerr described the Falkland Islands Wolf officially in 1792. Despite
heavy persecution by Argentinean settlers in the first decades of the 19th
century, the Falkland Islands Wolf was still common in 1833, when Charles
Darwin visited the islands during his voyage aboard his ship the Beagle.
Darwin commented on the tameness of the animals and feared that this might
eventually lead to their extinction. He was right! Shortly after the
Falkland Islands Wolf was discovered by fur traders from the United
States. Trappers holding a piece of meat in one hand and a knife in the
other lured the extremely tame animals. By 1840 the species was already
extinct in East Falkland. |
|
| Extinction Causes | U.S. fur traders hunted the species, and sheep raising Scottish settlers poisoned the Falkland Islands Wolf as a pest species. | |
| Conservation Attempts | A Falkland Islands Wolf lived in the London Zoo in the United Kingdom in 1868. In December 1870 the zoo got another "Antarctic Wolf", the surviving half of a pair sent by Mr Byng, the acting colonial secretary of the Falklands. This animal live only a few years. No conservation measures were taken. | |
| Museum Specimens | Only 11 museum specimens remain today in London (UK), Stockholm (Sweden),
Brussels (Belgium), and Leiden (the Netherlands). The drawing above shows
a stuffed specimen, which is one of the three specimens from the National
Museum of Natural History in Leiden, the Netherlands.
Image: drawing is of the Falkland Islands Wolf specimen in the National Museum of Natural History Naturalis, in Leiden, the Netherlands. Created by Peter Maas for The Extinction Website. This image has been released under the Creative Commons Attribution Non-commercial No Derivatives 3.0 Licence. |
|
| Relatives | The Falkland Island Wolf is probably the most enigmatic member of the dog
family. The Falkland Islands Wolf no doubt belongs with the other South
American canids, but it nearest relative has not been identified with
certainty and may be extinct.
In 1880, zoologist Thomas Huxley concluded from skull comparisons that it was related to coyote. Later studies indicated it was closer to a fox rather than a wolf. In 1914, Oldfield Thomas moved it into the genus Dusicyon, with the culpeo (Dusicyon culpaeus is nowadays seen as a synonym of Pseudalopex culpaeus) and South American foxes. Its exact taxonomy is still debated. DNA studies of remains are inconclusive. |
|
| Links |
IUCN Red List of Threatened Species: Dusicyon australis Natuurinformatie - The Warrah or Falklands "wolf" (Dusicyon australis) (also in Dutch & French) Zorro-lobo (Spanish) zorro malvinero (Spanish) Museumkennis - Falkland wolf (Dutch) kihalt gerinces fajok - Falklandi pamparóka (Hungarian) |
|
| Books | Flannery,
T., Schouten, P., 2001, A Gap in Nature: Discovering the World's Extinct
Animals, William Heinemann, London. ISBN: 0434008192 (UK edition).
Day, D., 1981, The Doomsday Book of Animals, Ebury Press, London. ISBN 0 85223 183 0. |
|
|
Last
updated: 21st September 2005. This page is a part of The Extinction Website. © 2000-2009. |
||