Anolis roosevelti

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Culebra Island giant anole
Anolis roosevelti.jpg
Status iucn3.1 CR.svg
Critically endangered, possibly extinct  (IUCN 3.1) [1]
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Iguania
Family: Dactyloidae
Genus: Anolis
Species:
A. roosevelti
Binomial name
Anolis roosevelti
Grant, 1931
Synonyms [2]
  • Xiphosurus roosevelti
    Nicholson et al., 2012

Anolis roosevelti, also known commonly as the Virgin Islands giant anole, Roosevelt's giant anole or the Culebra giant anole, is an extremely rare or possibly extinct species of lizard of the genus Anolis in the family Dactyloidae. The species is native to the Virgin Islands and Vieques.

Contents

Taxonomy and etymology

The Culebra Island giant anole was first described in 1931 by American zoologist Chapman Grant, grandson of U.S. President Grant. It is named in honor of Theodore Roosevelt Jr., who was the governor of Puerto Rico at that time. [3] It was initially described as Anolis roosevelti but some have suggested it should be transferred into the genus Xiphosurus in 2012. [4] This new classification system is controversial and many have preferred to maintain all anoles in genus Anolis. [5]

Geographic range

Anolis roosevelti is endemic to Culebra Island in Puerto Rico, and the Virgin Islands. [2]

Habitat

A. roosevelti lives in forested zones [1] on the slopes of Mt. Resaca.[ citation needed ]

Description

A. roosevelti can reach a snout-to-vent length (SVL) of 160 mm (6.3 in). The color of the body is brown-grey, while the tail has a yellow-brown hue and the abdomen is whitish. The throat fan varies from gray on the upperparts to yellow on the underparts, and the eyelids are yellow. A further feature are two long drawn-out lines on both sides of the body; one starts at the ear, the other at the shoulder.[ citation needed ]

Reproduction

A. roosevelti is oviparous. [2]

Threats

Though A. roosevelti was only observed again in 1932 after its discovery, there have been unconfirmed sightings since 1973 (the last one in 1978). Some experts believe that it might still exist. It preferred a habitat with gumbo-limbo and ficus trees because it fed from the fruits of the trees. Due to human activities the habitat was almost destroyed; only a few specimens of the Culebra Giant Anole can be seen in museums. It was listed as federally endangered in the Endangered Species Act in 1977.[ citation needed ]

See also

Related Research Articles

Dactyloidae Family of reptiles

Dactyloidae are a family of lizards commonly known as anoles and native to warmer parts of the Americas, ranging from southeastern United States to Paraguay. Instead of treating it as a family, some authorities prefer to treat it as a subfamily, Dactyloidae, of the family Iguanidae. In the past they were included in the family Polychrotidae together with Polychrus, but the latter genus is not closely related to the true anoles.

<i>Anolis</i> Genus of lizards

Anolis is a genus of anoles, iguanian lizards in the family Dactyloidae, native to the Americas. With more than 425 species, it represents the world's most species-rich amniote tetrapod genus, although many of these have been proposed to be moved to other genera, in which case only about 45 Anolis species remain. Previously, it was classified under the family Polychrotidae that contained all the anoles, as well as Polychrus, but recent studies place it in the Dactyloidae.

Knight anole Species of lizard

The knight anole is the largest species of anole in the Dactyloidae family. Other common names include Cuban knight anole or Cuban giant anole, highlighting its native country, but it has also been introduced to Florida. In its native Cuba, this large anole is called chupacocote.

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

Anolis pulchellus, the Puerto Rican bush anole, snake anole, or Puerto Rican anole, is a small anole lizard of the family Dactyloidae. The species is among the most common lizards in Puerto Rico, and also native to Vieques, Culebra, and the Virgin Islands.

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

Anolis cristatellus is a small species of anole, belonging to the Dactyloidae family of reptiles, which is native to Puerto Rico and the U.S. and British Virgin Islands, with introduced populations in locations around the Caribbean. The males of A. cristatellus are easily recognizable by the fin running down the top of the tail, which is known as a "caudal crest". The females also have these crests, but these are smaller than those of the males. It is often quite common in many areas on Puerto Rico, where it can be seen during the day passing the time on the lower parts of tree trunks, or on fences and the walls of buildings in urban areas, sometimes venturing down onto the ground in order to lay eggs, have a snack, or do other cursorial activities. Like many anoles, this species displays the characteristic behaviour of doing push-ups as well as inflating a pizza-like flap of coloured skin on their throat, known as a dewlap, in order to show others how hip they are, and thus attract mates or intimidate rivals. The species is known locally as the lagartijo común, and in English it is sometimes called either the crested anole, the common Puerto Rican anole, or the Puerto Rican crested anole. There are two allopatric subspecies found in different geographical areas, with slightly different coloured dewlaps and crests.

<i>Anolis garmani</i> Species of lizard

Anolis garmani, the Jamaican giant anole, also known as the Jamaican anole or Jamaica giant anole, is a species of anole, a lizard in the family Dactyloidae. The species is endemic to Jamaica, but has been introduced to Florida.

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

The Puerto Rican Twig Anole or Dwarf Anole is a species of small, arboreal anole endemic to Puerto Rico and primarily inhabiting the Cordillera Central from the Sierra de Cayey range in the Southeast to the central-western ranges of Maricao. A mostly grey to olive-brown bodied lizard, A. occultus is the smallest of the Puerto Rican Anoles with a snout to vent length of 34-42 mm. In comparison to other twig anoles, A. occultus is extremely cryptic through its unique sleeping behaviors and mottled pattern. Sleeping behavior including site selection minimizes the probability of predator encounter along with A. occultus’ extensive list of antipredator behaviors.

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

Anolis leachii, the Antigua Bank tree anole, Barbuda Bank tree anole, or panther anole, is a species of anole, a lizard in the family Dactyloidae. The species is endemic to the Caribbean.

<i>Anolis richardii</i> Species of lizard

Anolis richardii, commonly known as the Grenada tree anole or Richard's anole, is a species of anole lizard in the family Dactyloidae. The species is found in the Caribbean.

<i>Anolis grahami</i> Species of lizard

Anolis grahami, commonly known as the Jamaican turquoise anole or the Graham’s anole, is a species of lizard native to the island of Jamaica, and has now also been introduced to the territory of Bermuda. It is one of many different species of anole lizards found in Jamaica.

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

Anolis cuvieri is a species of lizard in the family Dactyloidae. The species is endemic to Puerto Rico, and is common in the Toro Negro State Forest.

<i>Anolis</i> ecomorphs Species of lizard

The ecomorph concept is a term first coined by Ernest Edward Williams in 1972 which he defined as a “species with the same structural habitat/niche, similar in morphology and behavior, but not necessarily close phyletically.” Williams first applied this definition to the Greater Antillean anoles upon observing their evolutionary radiation, although it has since been used widely elsewhere.

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

Anolis stratulus is a moderately-sized species of anole found in Puerto Rico, the United States Virgin Islands and the British Virgin Islands. It is a gray-colored lizard spotted with brown markings. It is arboreal, usually found positioned on tree bark on branches in the canopies of forest trees, where in some areas of Puerto Rico it can be incredibly abundant, with tens of thousands of the lizards being present per hectare.

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

Anolis poncensis is a species of lizard of the family of Dactyloidae. The species is endemic to Puerto Rico. It was first identified in Ponce, in the hills three miles east of the city. The Puerto Rico Department of Natural and Environmental Resources considers it a "vulnerable species".

<i>Sphaerodactylus roosevelti</i> Species of reptile

Sphaerodactylus roosevelti, also known commonly as Roosevelt's beige sphaero or Roosevelt's least gecko, is a small species of lizard in the family Sphaerodactylidae. The species is endemic to Puerto Rico.

<i>Anolis cooki</i> Species of lizard

Anolis cooki, also known commonly as Cook's anole, Cook's pallid anole, and the Guanica pallid anole, is a species of lizard in the family Dactyloidae. The species is endemic to Puerto Rico.

<i>Anolis evermanni</i> Species of lizard

Anolis evermanni, the emerald anole, Evermann's anole, or small green anole, is a species of lizard included within the family Dactyloidae. Anolis evermanni are native to and most commonly found in Puerto Rico, mainly in wet forests. Anolis evermanni are medium-sized lizards and bright emerald-green in color. Anolis evermanni are studied for their behavior as well as the evolution of the Dactyloidae family which are known as anoles, a group of lizards. Anoles are found throughout the Americas and are related to iguanas.

References

  1. 1 2 Platenberg, R.; de Queiroz, K.; Mahler, D.L. (2020). "Anolis roosevelti". IUCN Red List of Threatened Species . 2020: e.T1319A18967413. doi: 10.2305/IUCN.UK.2020-3.RLTS.T1319A18967413.en . Retrieved 18 November 2021.
  2. 1 2 3 Species Anolis roosevelti at The Reptile Database www.reptile-database.org.
  3. Beolens B, Watkins M, Grayson M. (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN   978-1-4214-0135-5. (Anolis roosevelti, p. 226).
  4. Nicholson KE, Crother BI, Guyer C, Savage JM (2012). " It is time for a new classification of anoles (Squamata: Dactyloidae)". Zootaxa3477: 1–108.
  5. Poe S (2013). "1986 Redux: New genera of anoles (Squamata: Dactyloidae) are unwarranted". Zootaxa3626 (2): 295-299.

Further reading