Australian wild dogs are a complex species that has been a part of the country's ecosystem for thousands of years. They are a hybrid of dingo and domestic dog, and can be found in various parts of Australia.
Their origins date back to the time of European settlement, when domestic dogs escaped or were released into the wild and interbred with dingos. This has resulted in a diverse range of wild dog populations with varying characteristics.
In some areas, Australian wild dogs are considered a pest species, causing significant damage to livestock and native wildlife. However, in other areas, they play a crucial role in maintaining the balance of the ecosystem.
Intriguing read: Australian Shepherds Water Dogs
Dingo Biology
Dogs are considered the species that exhibit the full suite of features associated with domestication, but dingos are an untamed/feralized dog that exhibit different traits.
Domesticated mammals, including dogs, tend to have smaller bodies than their wild counterparts, but dingos are actually a medium body size.
Dingos have a well-proportioned rib cage, slightly long back, and long legs, and their head appears pear-shaped when looked from above.
Their muzzle is triangular and relatively long, and their eyelids are lightly slanted.
Background
The Australian dingo is a topic of ongoing debate in Australia, with different groups having varying opinions about its origins and status. The dingo's ancestry is a key point of contention.
Some people believe the dingo has been tamed and has since reverted to its wild state. This idea is supported by the fact that the dingo's ancestors may have been domesticated and now reside on the continent as a feral dog.
Aboriginal people, scientists, and the government in Australia are all involved in the ongoing discussion about the dingo's origins. The goal of this article is to provide a theoretical framework for understanding the dingo's biology.
The dingo's taxonomy and origins are not yet fully understood, and more research is needed to shed light on this topic. This article aims to highlight what is currently known about the dingo and make predictions that can guide future research.
Australia
Australia is home to the largest population of dingoes, with estimates suggesting there are over 50,000 individuals roaming the continent.
Dingoes in Australia have adapted to the harsh Outback environment, with their thick coats and robust bodies allowing them to survive in temperatures as high as 45°C.
Their diet consists mainly of small mammals, reptiles, and insects, which they hunt using their sharp teeth and powerful jaws.
Dingoes are highly social animals, often living in packs with a dominant male and female, and have been known to form close bonds with each other.
In Australia, dingoes are considered a key part of the ecosystem, playing a vital role in maintaining the balance of native wildlife populations.
Their unique howl is a distinctive feature of the Australian Outback, with the sound carrying for miles in the stillness of the night.
Dingo Molecular Phylogeny
Dingoes have a fascinating genetic makeup, and researchers have made significant progress in understanding their molecular phylogeny.
Alan Wilton, a renowned dingo geneticist, developed a methodology to assess genetic purity in dingoes based on microsatellite markers.
The test compares the frequency of microsatellite markers in a canine subject to that of captive and wild dingoes, establishing a probability of the animal being a pure dingo.
This probability is scaled to the number of marker loci detected in the test, earning it the name '3Q' score.
The final scoring takes into account the presence or absence of alleles found only in domestic dogs.
Studies have used DNA from the mitochondrial genome, Y-chromosome, genome-wide SNPs, and short-read whole genome sequencing to infer the phylogenetic position of dingoes.
One such study sequenced an Alpine Dingo named Typia, who was bred in a colony at the Bargo Dingo Sanctuary in New South Wales, Australia.
Typia may be more inbred than wild dingoes due to the colony's focus on breeding pure Alpine dingoes.
Related reading: 4dx Test
Organismal Level Traits
Dogs have smaller bodies than their wild counterparts, with smaller skulls that have shorter, wider snouts and shorter, lower jaws.
In comparison, dingos tend to have larger bodies than domesticated dogs. Their skulls are larger and have longer, narrower snouts and higher jaws.
Domesticated dogs often have depigmented fur and skin, a curly tail, and floppy ears, but these traits are absent in dingos.
Box 2: Dingo-Type
The dingo-type is characterized by a medium body size, well-proportioned rib cage, and slightly long back.
Their head appears pear-shaped when looked at from above, with a strong and medium-length neck.
The muzzle is triangular and relatively long, with eyelids that are lightly slanted.
Their tail is often curled up and carried over the hips, sometimes in an almost closed loop.
In some cases, the tail can appear hooked or pendant, and it's usually smooth or feathered, rarely bushy.
Ears are of a medium size, erect, triangular, and wide at the base.
Coat colours are variable, with ginger tones dominating.
Specimens displaying this colour phase often have two or more white feet, a white tail tip, and sometimes white chest and throat areas.
More rarely, a white muzzle is present, and sable specimens are also relatively common.
On a similar theme: Pug Dog White
Box 4 Low Amy2B Copy Number Possibilities
One possibility is that dingoes never acquired the AMY2B duplication. This suggests that the genetic trait may not be present in the dingo population.
Another possibility is that dingoes lost the duplication and now have a single functional copy of the gene. This could be due to a genetic mutation or deletion that occurred over time.
Remnants of the AMY2B duplication are expected to be present in the dingo genome, unless they were precisely excised. This would be a telltale sign that the duplication once existed.
Multiple independent AMY2B expansions may have occurred, which could explain why some domestic dog breeds have a different expansion pattern. This would also suggest that the expansion is not a fixed trait, but rather a variable one.
Dingo Diet
The dingo's diet is quite fascinating. Australia's largest mammal carnivore, the dingo is an opportunistic feeder.
They'll eat just about anything they can catch, including mammals. This includes wallabies, kangaroos, and other small animals.
Fish are also on the menu, as dingos have been known to catch them in rivers and streams. Birds are another food source, and they'll often hunt them in the wild.
Fruit is a more surprising addition to the dingo's diet, but it's a welcome source of nutrients.
Frequently Asked Questions
Can Australian wild dogs be domesticated?
Dingoes, Australia's wild dogs, can be domesticated, but they have largely returned to the wild since being introduced by humans 5,000 years ago
Can a dingo be a pet?
While dingoes can make loving companions, they require specialized care that's often underestimated, making them a significant responsibility. If you're considering a dingo as a pet, learn more about the unique needs and challenges involved.
Sources
- https://pestsmart.org.au/toolkits/wild-dogs/
- https://theconversation.com/new-dna-testing-shatters-wild-dog-myth-most-dingoes-are-pure-206397
- https://frontiersinzoology.biomedcentral.com/articles/10.1186/s12983-019-0300-6
- https://theconversation.com/topics/wild-dogs-3405
- https://www.discoverwildlife.com/animal-facts/mammals/dingo-guide-dingo-facts
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