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 Dingo (Canis lupus dingo)
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| Canis lupus dingo (Meyer, 1793) |
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 Dingo range
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The dingo (Canis lupus dingo) or Warrigal, is a type of Australian canid, probably descended from the Iranian Wolf (Canis lupus pallipes). In biology trinomial nomenclature refers to names for taxa below the rank of species Friedrich Albrecht Anton Meyer (1768-1795 was a German doctor and Naturalist. The Australian National Kennel Council (ANKC is the Peak body in Australia responsible for promoting breeding, showing, trialling obedience The American Rare Breed Association or ARBA is a national dog association of the United States, based in Cheltenham Prince George's County Maryland. For a topic outline on this subject see List of basic Australia topics. The Iranian wolf ( Canis lupus pallipes) is a subspecies of Grey Wolf which ranges from Lebanon, Northern Israel, Saudi Arabia [2] It is commonly described as an Australian wild dog, but is not restricted to Australia, nor did it originate there. Modern dingoes are found throughout Southeast Asia, mostly in small pockets of remaining natural forest, and in mainland Australia, particularly in the north. They have features in common with both wolves and modern dogs, and are regarded as more or less unchanged descendants of an early ancestor of modern dogs. The name dingo comes from the language of the Eora Aboriginal people, who were the original inhabitants of the Sydney area. The traditional owners of the inner Sydney City region of Australia are the Cadigal people one of the peoples who belong to the Eora language group For a more complete list of Indigenous peoples of Australia (groups kinship groups communities and other collective designations see List of Indigenous Australian group names Sydney (ˈsɪdniː is the most populous city in Australia, with a Metropolitan area population of approximately 4 The New Guinea Singing Dog is also classified as Canis lupus dingo. The New Guinea Singing Dog ( Canis lupus dingo) known as NGSD, New Guinea Highland Dog, or Singer, is a type of domestic dog
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Description
Appearance
Adult dingoes are typically 19–23 inches (48–58 cm) tall at the shoulders, and weigh on average 50–70 pounds (23–32 kg), though specimens weighing 120 pounds (55 kg) have been recorded. [3] Males are larger and heavier than females. [4] Dingoes in southern Australia tend to be smaller than dingoes occurring in northern and north-western Australia. Australian dingoes are invariably larger than specimens occurring in Asia. [4] Compared to similarly sized domestic dogs, dingoes have longer muzzles, larger carnassials, longer canine teeth, and a flatter skull with larger nuchal lines. Carnassials are large teeth found in many Carnivorous Mammals, used for shearing flesh and bone in a Scissor or Shear -like way The nuchal lines are four curved lines on the external surface of the Occipital bone: The upper often faintly marked is named the highest nuchal line [4] Their dental formula is 3/3-1/1-4/4-2/3=42. Dentition is the development of Teeth and their arrangement in the Mouth. [4] Dingoes lack the same degree of tooth crowding and jaw-shortening that distinguishes other dog breeds from wolves. [3]
Fur colour is typically yellow-ginger, though tan, black, white or sandy including occasional brindle can occur. Albino dingoes have been reported. [3] Any other colours are indicators of hybridization. [4] Purebred Dingos have white hair on their feet and tail tip and lack dewclaws on their hindlegs. A dewclaw is a vestigial digit of the Foot of many Mammals Birds and Reptiles (including some extinct orders like certain [3]
Chromosome number is 2n=78. A chromosome is an organized structure of DNA and Protein that is found in cells. [4]
Temperament and behavior
Dingoes are mostly seen alone, though the majority belong to packs which rendezvous once every few days to socialise or mate. [4] Scent marking, howling and stand offs against rival packs increase in frequency during these times. [4] Packs of dingoes can number 3 to 12 in areas with little human disturbance, with distinct male and female dominance hierarchies determined through aggression. [4] Successful breeding is typically restricted to the dominant pair, though subordinate pack members will assist in rearing the puppies. [4]
The size of a dingo's territory has little to do with pack size, and more to do with terrain and prey resources. [4] Dingoes in south-western Australia have the largest home ranges. [4] Dingoes will sometimes disperse from the natal home ranges, with one specimen having been recorded to travel 250 kilometers. [4]
Dingoes do not bark as much as domestic dogs,which can be very loud, and they howl more frequently. Three basic howls with over 10 variations have been recorded. [4] Howling is done to attract distant pack members and it repels intruders. [4] In chorus howling, the pitch of the howling increases with the number of participating members. [4] Males scent mark more frequently than females, peaking during the breeding season. [4]
Ecology
Reproduction
Like wolves, but unlike domestic dogs, dingoes reproduce once annually. [4] Male dingoes are fertile throughout the year, whereas females are only receptive during their annual estrus cycle. Oestrus is also the biological genus name of the gadfly. The estrous cycle (also oestrous cycle; derived from Latin [4] Females become sexually mature at the age of two years, while males obtain it at 1 to 3 years. [4] Dominant females within packs will typically enter estrus earlier than subordinates. [4] Captive dingoes typically have a pro-estrus and estrus period lasting 10–12 days, while for wild specimens it can be as long as 2 months. [4] The gestation period lasts 61–69 days, with litters usually being composed of 5 puppies. [4] There is usually a higher ratio of females than males. [4] Puppies are usually born from May to July, though dingoes living in tropical habitats can reproduce at any time of the year. [4] Hybrid dingoes often enter estrus twice annually, and have a gestation period of 58–65 days. [4] Puppies are usually born in caves, dry creekbeds or appropriated rabbit or wombat burrows. [4] Puppies become independent at 3–6 months, though puppies living in packs will sometimes remain with their group until the age of 12 months. [4] Unlike in wolf packs, in which the dominant animals prevent subordinates from breeding, alpha dingoes suppress subordinate reproduction through infanticide. Infanticide is the practice of someone intentionally causing the death of an Infant. [4]
Dietary habits
Over 170 different animal species have been recorded in Australia to be included in the dingo's diet, ranging from insects to water buffalo. Prey specialisation varies according to region. In Australia's northern wetlands, the most common prey are magpie geese, dusky rats and agile wallabies, while in arid central Australia, the most frequent prey items are european rabbits, long-haired rats, house mice, lizards and red kangaroos. The Magpie-goose, Anseranas semipalmata, is a Waterbird Species found in Australia and New Guinea. UserPolbot. -->The Dusky Rat ( Rattus colletti) is a species of Rodent in the Muridae family The Agile Wallaby ( Macropus agilis) also known as the Sandy Wallaby, is a species of Wallaby found in northern Australia and New Guinea The European Rabbit ( Oryctolagus cuniculus) is a species of Rabbit native to south west Europe (Spain and Portugal UserPolbot. -->The Long-haired Rat ( Rattus villosissimus) is a species of Rodent in the Muridae The House Mouse ( Mus musculus) is one of the most numerous species of the genus Mus commonly termed a Mouse. The Red Kangaroo ( Macropus rufus) is the largest of all Kangaroos the largest Mammal native to Australia, and the largest surviving [4] In north-western habitats, Eastern Wallaroos and red kangaroos are usually taken, while wallabies, possums and wombats are taken in the east and south eastern highlands. The Eastern Wallaroo ( Macropus robustus) also known as the Common Wallaroo, the Hill Wallaroo or the Euro, is a large variable species A possum is any of about 64 small to medium-sized Arboreal Marsupial Species native to Australia, New Guinea, and Sulawesi [4] In Asia, dingoes live in closer proximity to humans, and will readily feed on rice, fruit and human refuse. Dingoes have been observed hunting insects, rats and lizards in rural areas of Thailand and Sulawesi. The Kingdom of Thailand (ˈtaɪlænd ราชอาณาจักรไทย, râːtɕʰa-ʔaːnaːtɕɑ̀k-tʰɑj Sulawesi (formerly known as Celebes, ˈsɛlɛbiz is one of the four larger Sunda Islands of Indonesia and is situated between Borneo and the [4] Dingoes will usually hunt alone when targeting small prey such as rabbits and will hunt in groups for large prey like kangaroos. [4] Dingoes in Australia will sometimes prey on livestock in times of seasonal scarcity. [5] The author of the study, Professor Chris Johnson, notes his first-hand observations of native rufous bettongs being able to thrive when dingoes are present. The Rufous Rat-kangaroo ( Aepyprymnus rufescens) also known as the Rufous Bettong, is a small species of the family Potoroidae found in Australia The rate of decline of ground-living mammals decreases from 50% or more, to just 10% or less, where dingoes are present to control fox and cat populations.
Potential extinction
As a result of interbreeding with dogs introduced by European settlers, the purebred dingo gene pool is in decline. By the early 1990s, about a third of all wild dingoes in the south-east of the continent were dingo/domestic dog crosses, and although the process of interbreeding is less advanced in more remote areas, the extinction of the subspecies in the wild is considered inevitable. [6] Although protection within Federal National Parks, World Heritage areas, Aboriginal reserves, and the Australian Capital Territory is available for dingoes, they are at the same time classified as a pest in other areas. } The Australian Capital Territory (ACT is the Capital territory of the Commonwealth of Australia and its smallest self-governing internal territory Since a lack of country-wide protection means they may be trapped or poisoned in many areas, in conjunction with the hybridisation with domestic dogs the taxon was upgraded from 'Lower Risk/Least Concern' to 'Vulnerable' by the IUCN (International Union for the Conservation of Nature and Natural Resources) in 2004. [1]
Dingoes as pets
Currently, dingo puppies are only available within Australia and it is illegal to export them, though this may change through the urgings of breed fanciers. Puppies can cost from AU$500–1,000. The Australian dollar ( sign: $; code: AUD) is the Currency of the Commonwealth of Australia, including Christmas [3] Although dingoes are generally healthier than most domestic dogs, and lack the characteristic "doggy odor",[3] they can become problematic during their annual breeding season, particularly males which will sometimes attempt to escape captivity in order to find a mate. Some Aborigines will prevent a dingo they have become attached to from escaping by breaking its front legs. [7]
History
Dingoes were transported from mainland Asia, through South-East Asia to Australia and other parts of the Pacific by Asian seafarers throughout their voyages over the last 5,000 years. Dingos arrived in Australia around 3,500–4,000 years ago, quickly spreading to all parts of the Australian mainland and offshore islands, save for Tasmania. Tasmania is an Australian island and state of the same name It is located south of the eastern side of the Continent, being separated from it by Bass [8] The dogs were originally kept by some Australian native groups as an emergency food source. [3]
The arrival of dingoes is thought by some to have been a major factor in the extinction of the thylacine in mainland Australia. The Thylacine (ˈθaɪləsaɪn -iːn ( Thylacinus cynocephalus Latin wolf-headed pouched dog was the largest known carnivorous Marsupial of modern Fossil evidence and Aboriginal paintings show that thylacines once inhabited the entire Australian mainland, only to suddenly disappear about 3,000 years ago. Seeing as dingoes are thought to have arrived around 500 years prior, certain people think this was sufficient time for the canids to impact on mainland thylacine populations, either through interspecific competition or through the diffusion of disease. Seeing as thylacines managed to survive in the dingo-devoid island of Tasmania until the 1930s, some put this forward as further indirect evidence for dingo responsibility for the thylacine's disappearance. [8] Some however doubt the impact of the dingo, as the two species would not have been in direct competition with one another. The dingo is a primarily diurnal predator, while it is thought the thylacine hunted mostly at night. In Animal behavior, diurnality indicates an Animal that is active during the Daytime and rests during the Night. In addition, the thylacine had a more powerful build, which would have given it an advantage in one-to-one encounters. [9]
European settlers did not discover dingoes until the 17th century, and originally dismissed them as feral dogs. [4] Captain William Damphier, who wrote of the wild dog in 1699, was the first European to first officially note the dingo. [3] Dingo populations flourished with the European's introduction of domestic sheep and European rabbit the Australian mainland. The European Rabbit ( Oryctolagus cuniculus) is a species of Rabbit native to south west Europe (Spain and Portugal [3]
See also
References
- ^ a b Corbett (2004). The Carolina Dog, or American Dingo, is a type of wild dog discovered in the late 1970s The New Guinea Singing Dog ( Canis lupus dingo) known as NGSD, New Guinea Highland Dog, or Singer, is a type of domestic dog Azaria Chantel Loren Chamberlain (born 11 June 1980 in Mount Isa, Queensland) was a ten-week-old Australian baby who disappeared on the night of 17 Canis lupus ssp. dingo. 2006 IUCN Red List of Threatened Species. The IUCN Red List of Threatened Species (also known as the IUCN Red List or Red Data List) created in 1963 is the world's most comprehensive inventory of the global IUCN 2006. Retrieved on 11 May 2006. Database entry includes justification for why this subspecies is vulnerable
- ^ The Cambridge Encyclopedia of Human Evolution, Cambridge University Press 1992
- ^ a b c d e f g h i Dingo Information and Pictures, Australian Native Dogs. Dogbreedinfo. com. Retrieved on 2008-04-17. 2008 ( MMVIII) is the current year in accordance with the Gregorian calendar, a Leap year that started on Tuesday of the Common Events 69 - After the First Battle of Bedriacum, Vitellius becomes Roman Emperor.
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah Dingo. Canids. org. Retrieved on 2008-04-17. 2008 ( MMVIII) is the current year in accordance with the Gregorian calendar, a Leap year that started on Tuesday of the Common Events 69 - After the First Battle of Bedriacum, Vitellius becomes Roman Emperor.
- ^ ECOS magazine 133 Oct-Nov 2006. Call for more dingoes to restore native species. Tracey Millen. [1] (Refers to the book Australia's Mammal Extinctions: a 50,000 year history. Christopher N. Johnson. ISBN-978-0521686600).
- ^ © Dr. Ellen K. Rudolph - Dingo - Canis familiaris
- ^ Coppinger, Ray (2001). Dogs: a Startling New Understanding of Canine Origin, Behavior and Evolution, p352. ISBN 0684855305.
- ^ a b Dingos in Australia - Their Origins and Impact. Australian Museum. Retrieved on 2008-04-17. 2008 ( MMVIII) is the current year in accordance with the Gregorian calendar, a Leap year that started on Tuesday of the Common Events 69 - After the First Battle of Bedriacum, Vitellius becomes Roman Emperor.
- ^ Introducing the Thylacine. The Thylacine Museum. Retrieved on 23 May 2007. Events 1430 - Siege of Compiègne: Joan of Arc is captured by the Burgundians while leading an army to relieve Compiègne Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century.
External links
- Australian Museum factsheet on Dingoes in Australia - Their Origins and Impact
- BBC story on dingo mitochondrial DNA study
- Dingo Quick Facts
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