Common death adder

Last updated

Common death adder
CSIRO ScienceImage 3990 Death Adder.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Elapidae
Genus: Acanthophis
Species:
A. antarcticus
Binomial name
Acanthophis antarcticus
(Shaw, 1802)
Death Adder Distribution.png
Distribution of the common death adder in Australia
Synonyms [2]
List
  • Boa antarcticaShaw & Nodder, 1802
  • Acanthophis cerastinusDaudin, 1803
  • Acanthophis browniiLeach, 1814
  • Ophryas acantophisMerrem, 1820
  • Vipera sordaSalvado 1851
  • Boa aculeataBoulenger 1896

The common death adder (Acanthophis antarcticus) is a species of death adder native to Australia. It is one of the most venomous land snakes in Australia and globally. While it remains widespread (unlike related species), it is facing increased threat from the ongoing Australian cane toad invasion.

Contents

Taxonomy

The common death adder was first described in 1802. The common death adder feeds on frogs, lizards and birds and, unlike most Australian venomous snakes that actively search for prey, this snake sits in one place and waits for prey to come to it.

Description

The common death adder has a broad flattened, triangular head and a thick body with bands of red, brown and black with a grey, cream or pink belly. It can reach a maximum body length of 70–100 centimetres (2.3–3.3 ft). Death adders possess the longest fangs of any Australian snake. Unlike the common or European adder (Vipera berus), the common death adder is a member of the snake family Elapidae, rather than the family Viperidae, which are not found in Australia. [3]

Distribution and habitat

The common death adder occurs over much of eastern and coastal southern Australia – Queensland, New South Wales and South Australia. It is more scarce in the Northern Territory, Western Australia and the west parts of South Australia, and is no longer found in Victoria. [3] [4] It is also native to Papua. [1]

Common death adders are found in forests, woodlands, grasslands and heaths of the eastern coast of Australia. Thanks to its band stripes, the death adder is a master of camouflage, hiding beneath loose leaf litter and debris in woodland, shrubland and grassland. [3]

Concerns

Habitat loss and the spread of invasive cane toads are a concern. The toad eats young death adders and adult death adders that eat the toads are poisoned by the toxic glands on their skin. [5] [6]

Diet

Common death adders eat small mammals and birds as a primary diet. Unlike other elapids, a common death adder lies in wait for its prey (often for many days) until a meal passes. It covers itself with leaves—making itself inconspicuous—and lies coiled in ambush, twitching its grub-like tail close to its head as a lure. When an animal approaches to investigate the movement, the death adder quickly strikes, injecting its venom and then waiting for the victim to die before eating it. Death adders are not aggressive, yet their ambush hunting technique and reliance on camouflage rather than flight to avoid threats render them more dangerous than other elapids to humans who venture into bushland habitats. [3]

Reproduction

Unlike most snakes, death adders produce litters of live young. In the late summer, a female death adder will produce a litter of live offspring, approximately 3–20; however, over 30 young have been recorded in a single litter. [3]

Related Research Articles

<span class="mw-page-title-main">Elapidae</span> Family of venomous snakes

Elapidae is a family of snakes characterized by their permanently erect fangs at the front of the mouth. Most elapids are venomous, with the exception of the genus Emydocephalus. Many members of this family exhibit a threat display of rearing upwards while spreading out a neck flap. Elapids are endemic to tropical and subtropical regions around the world, with terrestrial forms in Asia, Australia, Africa, and the Americas and marine forms in the Pacific and Indian Oceans. Members of the family have a wide range of sizes, from the 18 cm (7.1 in) white-lipped snake to the 5.85 m king cobra. Most species have neurotoxic venom that is channeled by their hollow fangs, and some may contain other toxic components in various proportions. The family includes 55 genera with around 360 species and over 170 subspecies.

<span class="mw-page-title-main">Fauna of Belize</span>

Belize is a country with a rich variety of wildlife, due to its unique position between North and South America, and a wide range of climates and habitats for plant and animal life. Belize's low human population, and approximately 8,867 square miles (22,970 km2) of undistributed land, provides an ideal home for more than 5000 species of plants, and vast numbers species of animals — with several hundred vertebrates including armadillos, snakes, and monkeys.

<span class="mw-page-title-main">Viperidae</span> Family of snakes

The Viperidae (vipers) are a family of snakes found in most parts of the world, except for Antarctica, Australia, Hawaii, Madagascar, New Zealand, and various other isolated islands. They are venomous and have long, hinged fangs that permit deep penetration and injection of their venom. Three subfamilies are currently recognized. They are also known as viperids. The name "viper" is derived from the Latin word vipera, -ae, also meaning viper, possibly from vivus ("living") and parere, referring to the trait viviparity common in vipers like most of the species of Boidae.

<i>Acanthophis</i> Genus of elapid snakes commonly called death adders

Acanthophis is a genus of elapid snakes. Commonly called death adders, they are native to Australia, New Guinea and nearby islands, and are among the most venomous snakes in the world. Despite their common name, they are not adders at all and belong to the Elapidae family. The name of the genus derives from the Ancient Greek akanthos/ἄκανθος ('spine') and ophis/ὄφις ('snake'), referring to the spine on the death adder's tail.

<span class="mw-page-title-main">Eastern brown snake</span> Highly venomous snake native to Australia

The eastern brown snake, often referred to as the common brown snake, is a species of extremely venomous snake in the family Elapidae. The species is native to eastern and central Australia and southern New Guinea. It was first described by André Marie Constant Duméril, Gabriel Bibron, and Auguste Duméril in 1854. The adult eastern brown snake has a slender build and can grow to 2 m (7 ft) in length. The colour of its surface ranges from pale brown to black, while its underside is pale cream-yellow, often with orange or grey splotches. The eastern brown snake is found in most habitats except dense forests, often in farmland and on the outskirts of urban areas, as such places are populated by its main prey, the house mouse. The species is oviparous. The International Union for Conservation of Nature classifies the snake as a least-concern species, though its status in New Guinea is unclear.

<span class="mw-page-title-main">Red-bellied black snake</span> Venomous snake native to eastern Australia

The red-bellied black snake is a species of venomous snake in the family Elapidae, indigenous to Australia. Originally described by George Shaw in 1794 as a species new to science, it is one of eastern Australia's most commonly encountered snakes. Averaging around 1.25 m in length, it has glossy black upperparts, bright red or orange flanks, and a pink or dull red belly. It is not aggressive and generally retreats from human encounters, but can attack if provoked. Although its venom can cause significant illness, no deaths have been recorded from its bite, which is less venomous than other Australian elapid snakes. The venom contains neurotoxins, myotoxins, and coagulants and has haemolytic properties. Victims can also lose their sense of smell.

<i>Bitis nasicornis</i> Species of snake

Bitis nasicornis is a viper species belonging to the genus Bitis, part of a subfamily known as "puff-adders", found in the forests of West and Central Africa. This large viper is known for its striking coloration and prominent nasal "horns". No subspecies are currently recognized. Its common names include butterfly viper, rhinoceros viper, river jack and many more. Like all other vipers, it is venomous.

<span class="mw-page-title-main">Mud adder</span> Species of snake

The mud adder, also known commonly as Devis's banded snake, is a species of venomous snake in the family Elapidae. The species is endemic to certain regions of eastern Australia, including South West Queensland, northern New South Wales, north-west Victoria, and South Australia. Its scientific and common names refer to Charles Walter De Vis.

<span class="mw-page-title-main">Desert death adder</span> Species of snake

The desert death adder is a species of snake native to Australia and is one of the most venomous land snakes in the world. The desert death adder is under threat due to the destruction of habitat.

Deaf adder may refer to:

<i>Echiopsis</i> Genus of snakes

Echiopsis curta is a terrestrial, elapid species of snake, also commonly known from the Aboriginal name as the bardick. It is a short, highly venomous snake with variable color which is mainly nocturnal, reaching a maximum length of 57 cm. It is endemic to Australia, most commonly found in three distinct populations through southern Australia. They are considered venomous to humans, however there is very little information. Their population is decreasing due to habitat degradation and destruction but considered least concern on the IUCN Red List.

<span class="mw-page-title-main">Bandy-bandy</span> Species of snake

The bandy-bandy, also commonly known as the hoop snake, is a species of venomous snake in the family Elapidae. The word bandy-bandy (bandi-bandi) traces back to the indigenous dialect of Kattang, from the Taree region, New South Wales. There are 5 known species of bandy-bandy, all of which are endemic to Australia.

<span class="mw-page-title-main">Caudal luring</span> Form of aggressive mimicry where the predator attracts prey using its tail

Caudal luring is a form of aggressive mimicry characterized by the waving or wriggling of the predator's tail to attract prey. This movement attracts small animals who mistake the tail for a small worm or other small animal. When the animal approaches to prey on the worm-like tail, the predator will strike. This behavior has been recorded in snakes, sharks, and eels.

<i>Candoia aspera</i> Species of snake

Candoia aspera, known commonly as the Papuan ground boa, New Guinea ground boa, or viper boa, is a species of snake in the family Boidae. As its common name suggests, it is found in New Guinea. It is a terrestrial species, living in the undergrowth. It is smaller than some other members of the Boidae family. The Papuan ground boa grows to 2 to 3 feet in length. It is known to be primarily nocturnal. The Papuan ground boa is known to be slightly more aggressive than other Candoia species. In recent years, it has become increasingly scarce in the pet industry due to restrictions on import/export trading. Though it was more common in the past, there is still very little known about it, in particular its behaviour in the wild; for example, its lifespan is still undetermined. It got the nickname viper boa from its appearance. It looks extremely similar to the elapid species Acanthophis laevis, more commonly known as the "Papuan death adder." The Papuan death adder itself only resembles a viper, but is actually an elapid. However, because of the resemblance to the highly venomous Papuan death adder, many Papuan ground boas are killed out of fear, although the latter is harmless.

This article lists the various snakes of Australia which live in a wide variety of habitats around the country. The Australian scrub python is Australia's largest native snake.

<span class="mw-page-title-main">Northern death adder</span> Species of snake

The northern death adder is a species of venomous snake in the family Elapidae.

The Kimberley death adder is a species of venomous snake in the family Elapidae native to northwestern Australia.

The Pilbara death adder, also known commonly as Wells' death adder, is a species of venomous snake in the family Elapidae. The species is one of the eight members of the genus Acanthophis, a genus which is found throughout northwestern and southwestern Australia and some parts of southern Papua New Guinea. The species Acanthophis wellsi is endemic to Western Australia.

Native to both South and Central America, Cane toads were introduced to Australia in the 1930s and have since become an invasive species and a threat to the continent's native predators and scavengers.

<span class="mw-page-title-main">Mallee black-backed snake</span> Species of snake

The Mallee black-backed snake also known as the Mitchell's short-tailed snake or more commonly as the black-backed snake, is a species of venomous snake from the family Elapidae. This species is native to Australia and is found in a variety of habitats in southern mainland Australia.

References

  1. 1 2 Allison, A. (2015). "Acanthophis rugosus". IUCN Red List of Threatened Species . 2015: e.T177483A79355114. doi: 10.2305/IUCN.UK.2015-3.RLTS.T177483A79355114.en .
  2. Australian Biological Resources Study (22 August 2013). "Species Acanthophis antarcticus (Shaw & Nodder, 1802)". Australian Faunal Directory. Canberra, Australian Capital Territory: Department of the Environment, Water, Heritage and the Arts, Australian Government. Retrieved 8 May 2019.
  3. 1 2 3 4 5 "Common Death Adder". Archived from the original on November 1, 2012. Retrieved 1 December 2015.
  4. Clemann, N.; Stranks, T.; Carland, R.; Melville, J.; Op Den Brouw, B.; Robertson, P. (2018). "The death adder Acanthophis antarcticus (Shaw & Nodder, 1802) in Victoria: historical records and contemporary uncertainty". Memoirs of Museum Victoria. 77. doi:10.24199/j.mmv.2018.77.03.
  5. "Common Death Adder". Australian Wildlife. Retrieved 28 December 2018.
  6. "Death adders more endangered than dangerous". ABC Wide Bay. 2009-02-20. Retrieved 28 December 2018.