Ctenotus pantherinus

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Leopard ctenotus
Ctenotus pantherinus ocellifer.jpg
Ctenotus pantherinus ocellifer
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Family: Scincidae
Genus: Ctenotus
Species:
C. pantherinus
Binomial name
Ctenotus pantherinus
(Peters, 1866) [2] [1] [3]
Synonyms [1] [3]
  • Lygosoma pantherinum
    Peters, 1866
  • Egernia whitei carnarae
    Kinghorn, 1931
  • Lygosoma breviunguis
    Kinghorn, 1932

Ctenotus pantherinus, commonly known as the Leopard Ctenotus, is a species of skink endemic to central and western Australia. It's conservation status is currently classified as Least Concern. [2] [3] [1]

Contents

Description

They are a Brown/grey lizard with a tail almost equal to its body length, with short, four stubby legs of similar length, ending in clawed feet with five digits. Yellow/white spots with a black/brown outline begin behind the head and extend to the tip of the tail. Some adult Leopard Ctenotus have white/yellow stripes on the side of the tail, starting at the hind leg. The underbelly is a pale white/yellow colour. [4] [5]

Leopard Ctenotus are one of the largest and fastest growing ctenotus species in Australia. They grow more during winter than other ctenotus species and are active during all seasons. Males tend to grow at a slightly faster rate than females, and juveniles born in autumn grow faster over winter than those born in the summer months. [6] [7]

Distribution

Ctenotus pantherinus is endemic to Australia and has been found in the semi- arid and arid regions of Western Australia, Northern Territory, Queensland, New South Wales and South Australia.

Ecology and Habitat

Ctenotus pantherinus inhabits semi-arid and arid regions of Australia which are usually sandy and stony areas high in Spinifex grasses. Hatchlings are 33mm long and can grow up to 86mm (snout to vent length) as a mature adult.

Diet

Ctenotus pantherinus are insectivores, their diet almost entirely consists of consuming termites and their larvae. [8]

Taxonomy

Leopard Ctenotus is a species of lizard, which belongs to the genus Ctenotus. [9] Ctenotus are in the family Scincidae, which contains more than 1,500 described species, making the Scincidae family one of the most diverse lizard families on Earth. [10]

Subspecies

Ctenotus pantherinus has four subspecies:

Reproduction

Leopard Ctenotus are oviparious, meaning they lay eggs which hatch after some time. Leopard Ctenotus reproduce at least once per year, and can have a clutch size ranging from 4-7 eggs. Egg production usually occurs in late spring to early summer.

Reproductive rate is above average when compared with other ctenotus species inhabiting the same area, with a relatively large clutch size compared to other skink species. Juvenile leopard Ctenotus reach sexual maturity at 10–11 months of age, on average.

Ctenotus Pantherinus is commonly known to reproductively be the only species (within the Ctenotus genus) to have a female be smaller in size in comparison to their male counterparts. This has allowed them to both adequately adapt to their environment, as well as seen them sustain their population. [11] [12] [13]

Threats

This species is classified as having a conservation status of least concern; however, some threats do exist. Drought impacts food availability and this can lead to population decline in dry years. [14] Habitat fragmentation and degradation from land clearing, poor fire regimes and over grazing may increase the isolation of populations and disrupt the ecological balance of the habitat they exist in. Predation by introduced feral animal species such as foxes and feral cats may reduce Leopard Ctenotus populations to low levels. [15]

Related Research Articles

<span class="mw-page-title-main">Skink</span> Family of reptiles

Skinks are lizards belonging to the family Scincidae, a family in the infraorder Scincomorpha. With more than 1,500 described species across 100 different taxonomic genera, the family Scincidae is one of the most diverse families of lizards. Skinks are characterized by their smaller legs in comparison to typical lizards and are found in different habitats except arctic and subarctic regions.

<i>Ctenotus</i> Genus of lizards

Ctenotus is a genus of skinks, lizards in the family Scincidae. The genus is endemic to Australia. The genus Ctenotus belongs to a clade in the Sphenomorphus group which contains such genera as Anomalopus and the close relatives Eulamprus and Gnypetoscincus.

<i>Lampropholis delicata</i> Species of lizard

Lampropholis delicata, the delicate skink, dark-flecked garden sun skink, garden skink, delicate garden skink, rainbow skink or plague skink, or the metallic skink is native to Australia and invasive in New Zealand and Hawaii where it is commonly found in gardens. The species is known for their color dimorphism between males and females; striped morphs and non-striped morphs exist in this species, however the stripe is less pronounced in males. This species' diet consists of a wide range of prey, such as spiders, bees, larvae, and termites. Mating occurs in the late summer and generally one clutch of 2 to 4 eggs are laid per year by each female.

<i>Morethia boulengeri</i> Species of lizard

Morethia boulengeri is a species of lizard in the family Scincidae. The species is endemic to Australia.

<i>Eulamprus quoyii</i> Species of lizard

Eulamprus quoyii, more commonly known as the eastern water skink, eastern water-skink, or golden water skink, is a viviparous species of diurnal skink. Eulamprus quoyii belongs to the family Scincidae and is considered a common garden animal in Australia. The skink is endemic to Australia and found only along the east coast of the country. It makes its home in creekside habitats along the east coast of Australia and in urban garden areas with high amounts of moisture. The species can be identified by the twin, long yellow stripes that run along its body from the top of the eye, as well as by several more specific character derived states. The pale yellow dorsolateral stripes are most likely where its common name, the golden water skink, is derived. Like other ectotherms, the skink can often be seen basking in the sun on rocky outcroppings in order to regulate its body temperature. Its diet mainly consists of both aquatic and terrestrial insects, tadpoles and small amounts of plant matter. The skink both hunts for food and scavenges when necessary and is considered an opportunistic feeder. It is prey to larger lizards, snakes, cats and birds and so will often be seen moving quickly into hiding when other organisms are present.

<i>Saiphos</i> Species of reptile

Saiphos equalis, commonly known as the yellow-bellied three-toed skink or simply three-toed skink, is a species of burrowing skink found in eastern Australia. It is the only species classified under the genus Saiphos.

<i>Ctenotus robustus</i> Species of lizard

The eastern striped skink is a species of skink found in a wide variety of habitats around Australia. They are long-tailed, fast moving skinks that are quite large, growing to a maximum length of about 30 cm. This skink is mostly brown with a white-edged black stripe running down the length of its back and tail with broad brown stripes along the side of the body with rows of white spots. The sides become lighter, turning into an off-white colour towards the underside of the skink, running from the groin to the chin. The striped skink is similar in appearance to the spotted-back skink with the main identifying difference being the solid stripe running down the back of C. robustus whereas C. uber orientalis has a row of dots.

<i>Lankascincus deignani</i> Species of lizard

Lankascincus deignani, commonly known as Deignan's tree skink and the Deignan tree skink, is a species of lizard in the family Scincidae. The species is endemic to the island of Sri Lanka.

<i>Ctenotus strauchii</i> Species of lizard

Ctenotus strauchii, also known commonly as the eastern barred wedge-snout ctenotus or Strauch's ctenotus, is a small species of lizard in the family Scincidae. The species is endemic to Australia and is found throughout semi-arid and arid regions in most of Australia's mainland states except Western Australia, although one record does exist for Western Australia in 1975.

<span class="mw-page-title-main">Stokes's skink</span> Species of lizard

Egernia stokesii is a gregarious species of lizard of the Scincidae family. This diurnal species is endemic to Australia, and is also known as the Gidgee skink, spiny-tailed skink, Stokes's skink and Stokes's egernia. The species forms stable, long-term social aggregations, much like the social groups seen in mammalian and avian species. This characteristic is rarely found in the Squamata order, but is widespread within the Australian subfamily of Egerniinae skinks. Populations of E. stokesii are widely distributed, but fragmented, and occur in semi-arid environments. There are three recognised subspecies. The conservation status for the species is listed as least concern, however, one subspecies is listed as endangered.

<span class="mw-page-title-main">Desert egernia</span> Species of lizard

The desert egernia, unadorned desert-skink or desert skink is a species of skink, a lizard in the family Scincidae. The desert egernia is endemic to the continent of Australia, and is widespread, with populations recorded in all mainland states and territories except the Australian Capital Territory. The desert egernia is found in dry, desert areas with deep, uncompacted sandy/loamy soils and little significant vegetation cover.

The Southern Mallee ctenotus is a medium sized lizard in the family scincidae (skink) found in the central and southern interior regions of South Australia and Western Australia; the Mallee regions of NSW and Victoria, in Australia.

<i>Ctenotus brooksi</i> Species of lizard

Ctenotus brooksi, also known commonly as Brooks' wedge-snouted ctenotus, the wedgesnout ctenotus, and the sandhill ctenotus, is a species of skink, a lizard in the family Scincidae. The species is endemic to Australia and found in semi-arid regions.

<i>Ctenotus inornatus</i> Species of lizard

The bar-shouldered ctenotus is a species of skink found in the Northern Territory, Queensland, Victoria, New South Wales, and Western Australia.

<i>Ctenotus leonhardii</i> Species of lizard

Ctenotus leonhardii, known by the common names Leonhardi's ctenotus, Leonhardi's skink or common desert ctenotus, is a species of skink found in a range of arid and semi-arid regions throughout mainland Australia. The species was named after German anthropologist Moritz von Leonhardi in 1919 and belongs to the genus Ctenotus, one of the largest genera of lizards in Australia.

<i>Ctenotus regius</i> Species of lizard

The pale-rumped ctenotus or regal striped skink is a medium-sized species of skink with an arid distribution restricted to the Australian Mainland, which belongs to the largest group of reptiles in Australia, Ctentotus.

<i>Ctenotus schomburgkii</i> Species of lizard

The barred wedge-snout ctenotus is a species of skink found in Australia.[2]

Ctenotus spaldingi is a diurnal terrestrial skink (Scincidae) species of lizard, commonly known as the straight-browed ctenotus or Spalding’s ctenotus. Native to Australia the species is found in the northern areas of Australia, along the east coast, in the north and east of South Australia and throughout Victoria and in southern Papua New Guinea. Their conservation status is of least concern classified by the IUCN. Individuals can be up to 30cm long from the snout to tail or 10cm long from the snout to vent (SVL). They typically inhabit grasslands and low vegetation in savannah woodlands in coastal dune areas, monsoon scrub and woodland commonly found around rock outcrops and when disturbed will hide in shallow burrows or amongst ground litter.

<i>Eremiascincus richardsonii</i> Species of lizard

The broad-banded sand-swimmer or Richardson's skink is a species of skink found in Australia.

<i>Ctenotus helenae</i> Species of lizard

Ctenotus helenae, also known commonly as the clay-soil ctenotus, is a species of skink, a lizard in the family Scincidae. The species is endemic to Australia.

References

  1. 1 2 3 4 Gaikhorst, G.; Ford, S.; Cowan, M.; How, R. (2017). "Ctenotus pantherinus". IUCN Red List of Threatened Species . 2017: e.T109464022A109464042. doi: 10.2305/IUCN.UK.2017-3.RLTS.T109464022A109464042.en . Retrieved 19 November 2021.
  2. 1 2 "Ctenotus pantherinus (Peters, 1866)". Atlas of Living Australia. Retrieved 21 February 2019.
  3. 1 2 3 "Ctenotus pantherinus (Peters, 1866)". The Reptile Database. Retrieved 21 February 2019.
  4. International Union for Conservation of Nature's Red List (2022). Leopard Ctenotus. https://www.iucnredlist.org/species/109464022/109464042. Accessed on 16 June 2022
  5. "Leopard Ctenotus (Ctenotus pantherinus)". www.ozanimals.com. Retrieved 13 October 2023.
  6. James, C. D. "Growth Rates and Ages at Maturity of Sympatric Scincid Lizards (Ctenotus) in Central Australia." Journal of Herpetology, vol. 25, no. 3, 1991, pp. 284–345.
  7. PIANKA, E. R., and S. E. GOODYEAR. "Lizard responses to wildfire in arid interior Australia: Long-term experimental data and commonalities with other studies." Austral Ecology, vol. 37, no. 1, 2011, pp. 1–11, doi:10.1111/j.1442-9993.2010.02234.x.
  8. Goodyear, S. E; Pianka, E. R (2011). "Spatial and Temporal Variation in Diets of Sympatric Lizards (Genus Ctenotus) in the Great Victoria Desert, Western Australia". Journal of Herpetology. 3 (45): 256–271. doi:10.1670/10-190.1. S2CID   15595369 . Retrieved 16 June 2022.
  9. Wikipedia: The free encyclopedia (2021, May 31). Ctenotus. Retrieved on 16 June 2022, from https://en.wikipedia.org/wiki/Ctenotus
  10. Wikipedia: The free encyclopedia (2022, May 25). Skink. Retrieved on 16 June 2022 from, https://en.wikipedia.org/wiki/Skink
  11. Gordon, C. E., et al. "What factors allow opportunistic nocturnal activity in a primarily diurnal desert lizard (Ctenotus pantherinus)?" Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, vol. 156, no. 2, 2010, pp. 255–261, doi:10.1016/j.cbpa.2010.02.007.
  12. James, C. D (1991). "Annual variation in reproductive cycles of scincid lizards (Ctenotus) in central Australia". Copeia. 1991 (3): 744–760. doi:10.2307/1446402. JSTOR   1446402.
  13. James, Craig D. (1991). "Population Dynamics, Demography, and Life History of Sympatric Scincid Lizards (Ctenotus) in Central Australia". Herpetologica. 47 (2): 194–210. ISSN   0018-0831.
  14. James, Craig D. (1 February 1991). "Temporal variation in diets and trophic partitioning by coexisting lizards (Ctenotus: Scincidae) in central Australia". Oecologia. 85 (4): 553–561. doi:10.1007/BF00323768. ISSN   1432-1939.
  15. "Leopard Ctenotus - profile | NSW Environment, Energy and Science". www.environment.nsw.gov.au. Retrieved 13 October 2023.