Oplurus cuvieri

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Oplurus cuvieri
Collared iguanid oplurus cuvieri.jpg
At Anjajavy Forest, Madagascar
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Iguania
Family: Opluridae
Genus: Oplurus
Species:
O. cuvieri
Binomial name
Oplurus cuvieri
(Gray, 1831)
Synonyms [2]

Oplurus cuvieri, commonly known as the collared iguana, the collared iguanid lizard, Cuvier's Madagascar skink, Cuvier's Madagascar swift, and the Madagascan collared iguana, is a species of arboreal lizard in the family Opluridae. The species is native to Madagascar and Comoros. There are two recognized subspecies. O. cuvieri is the largest of six species in the genus Oplurus .

Contents

Etymology

The specific name, cuvieri, is in honor of French naturalist Georges Cuvier. [3]

Description

As some of the common names suggest, O. cuvieri has a distinctive black collar that stands out against the body which is speckled with lighter spots. It has a large head, and the relatively short tail has spiny scales. The female is a duller brown colour. [4]

The average length of O. cuvieri is 16 in. and the average weight is 160 – 190 g. [5]

The images below show considerable variation in markings and coloration.

Geographic range

The collared iguana is found in the western tropical forests of Madagascar and on the island of Grand Comore in Comoros. [1]

Subspecies

Two subspecies are recognized as being valid, including the nominotypical subspecies. [2]

Nota bene : A trinomial authority in parentheses indicates that the subspecies was originally described in a genus other than Oplurus .

Diet

O. cuvieri has a mostly carnivorous diet. [4]

Behavior

This diurnal iguana species is primarily arboreal and spends much of its time gripping trunks and branches where it remains motionless while it scans the surrounding area for insects.

Once It sees the prey, the lizard will run rapidly to capture it before it can escape. Madagascar Collared Lizards have also been observed positioning themselves near an ant trail where they can gain an easy meal by picking up the ants one by one. Occasionally, they may also eat plant matter such as flowers.

This lizard is territorial, found alone or in an area with one male and a few females.

When threatened, it will retreat into a crack or crevice in a tree trunk, and use its armored tail to form a barrier between itself and the predator. [5]

Reproduction

The sexual maturity of the Madagascar Collared Lizard is estimated at 2-3 years.

The breeding season for the Madagascar Collared Lizard is timed to match the rainy season, with egg laying occurring just after the first heavy rain. Males fight with one another for the females’ attention, often leading to injury or even death. The female digs a hole about four inches deep in open ground where there is no live vegetation, often on a man-made forest trail. She lays her clutch, typically of 2-5 eggs, fills the hole with sandy soil and covers it with sand, dead leaves and twigs so that the laying site blends into the surroundings. The female then immediately leaves the nest site and neither parent provides any degree of care for the hatchlings. Females may lay several clutches per year.

Incubation of Madagascar Collared Lizard eggs lasts 61-71 days. [5]

Conservation

There is no data on the number of individuals in the wild and no known conservation measures in place for this species. Its habitat in the forests of Madagascar, however, faces a number of threats which may impact this iguana; this includes the burning of forests for agricultural expansion and the exploitation of trees for timber and charcoal.

In addition, because of their shallow, unprotected nesting sites, the eggs are heavily preyed upon by other reptiles, most notably the Malagasy giant hognose snake. [5]

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<span class="mw-page-title-main">Opluridae</span> Family of lizards

The Opluridae, or Madagascan iguanas, are a family of moderately sized lizards native to Madagascar and Grande Comore. There are eight species in two genera, with most of the species being in Oplurus. The Opluridae, along with Brachylophus of Fiji, are the only extant members of the Pleurodonta that are found outside the Americas.

<span class="mw-page-title-main">Iguanidae</span> Family of lizards

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<i>Ctenosaura bakeri</i> Species of lizard

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<span class="mw-page-title-main">Malagasy paradise flycatcher</span> Species of bird

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Ctenosaura clarki, commonly known as the Balsas armed lizard, Balsas spiny-tailed iguana, Michoacán dwarf spiny-tailed iguana, or nopiche, is a species of lizard in the family Iguanidae. The species native to Mexico.

<i>Cyclura nubila</i> Species of reptile

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<i>Ctenosaura hemilopha</i> Species of lizard

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<i>Uroplatus sikorae</i> Species of lizard

Uroplatus sikorae, commonly referred to as the mossy leaf-tailed gecko or the southern flat-tail gecko, is a species of lizard in the family Gekkonidae. The species is endemic to Madagascar. It is a CITES II protected animal due to habitat loss.

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The green thornytail iguana is an arboreal species of lizard from the Amazon rainforest and forests in the Guiana Shield. It is found in Colombia, Guyana, Suriname, French Guiana, northeastern Peru, southern Venezuela, and northern Brazil. As in U. flaviceps, U. azureum primarily feeds on ants.

<i>Plica plica</i> Species of lizard

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<i>Anolis cuvieri</i> Species of reptile

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<i>Oplurus cyclurus</i> Species of lizard

Oplurus cyclurus, also known commonly as the Madagascar swift and Merrem's Madagascar swift, is a species of lizard in the family Opluridae. The species is endemic to Madagascar. It is arboreal and mostly insectivorous. Its breeding is timed with the rainy season.

<i>Oplurus grandidieri</i> Species of lizard

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References

  1. 1 2 Vences, M.; Hawlitschek, O. (2011). "Oplurus cuvieri ". IUCN Red List of Threatened Species . 2011: e.T172763A6913310. doi: 10.2305/IUCN.UK.2011-2.RLTS.T172763A6913310.en . Retrieved 20 November 2021.
  2. 1 2 Oplurus cuvieri at the Reptarium.cz Reptile Database. Accessed 3 October 2020.
  3. Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN   978-1-4214-0135-5. (Oplurus cuvieri, p. 63).
  4. 1 2 "Collared iguana". Arkive. Archived from the original on 2014-05-30. Retrieved 5 September 2014.
  5. 1 2 3 4 "Madagascar Collared Lizard" (PDF). saczoo.org. December 2016. Retrieved October 17, 2023.[ dead link ]

Further reading