Andros Island iguana | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Order: | Squamata |
Suborder: | Iguania |
Family: | Iguanidae |
Genus: | Cyclura |
Species: | |
Subspecies: | C. c. cychlura |
Trinomial name | |
Cyclura cychlura cychlura (Cuvier, 1829) |
The Andros Island iguana or Andros iguana (Cyclura cychlura cychlura) is an endangered subspecies of Northern Bahamian rock iguana of the genus Cyclura that is found on Andros Island on the western edge of Grand Bahama. Its status is Endangered, with a wild population of 3,500 animals, and it can be found on the IUCN Red List. [1]
The Andros Island iguana, Cyclura cychlura cychlura, is endemic to the island of Andros. [1] [2] It is one of three subspecies of the Northern Bahamian rock iguana; the other two subspecies being Allen's Cay iguana (Cyclura cychlura inornata) and the Exuma Island iguana ( Cyclura cychlura figginsi ). [1] [2]
The Andros Island iguana is one of the largest species of rock iguana which attains a total length of close to 1.5 m (4 ft 11 in). [1] [3] [4] Its coloration is dark-gray to black, with yellowish green or orange tinged scales on the legs, dorsal crest, and the head. When the animal matures, the yellow coloration changes to a bright reddish orange color in contrast to the animals darker striped body and black feet. [4]
This species, like other species of Cyclura, is sexually dimorphic; males are larger than females, and have more prominent dorsal crests as well as larger femoral pores on their thighs, which are used to release pheromones. [5] [6]
Andros Island iguanas are host to a reptile tick, Amblyomma dissimile . [7]
Like all Cyclura species, the Andros Island iguana is primarily herbivorous, consuming leaves, flowers, and fruits from over 100 different plant species. This diet is very rarely supplemented with insect larvae, crabs, slugs, dead birds, rats, and fungi.
Mating occurs from early April to early May, with eggs deposited in nests excavated within termite mounds ( Nasutitermes rippertii ). [8] This is the only species of iguana known to use termite mounds as a means of incubating its eggs. [3] Females are known to guard their nests until hatching occurs. [4]
The newly hatched iguanas disperse away from the nest site for the first two or three weeks. During the first week, the hatchlings are vulnerable to predation by snakes; less than one-third of hatchlings survive their first month. [9]
It is estimated that the current global population is less than 3,500 members and is declining. [4] The population has decreased by at least 50% over the last 60 years. [1] [3]
Hunting is the main factor threatening imminent extinction for this iguana. [1] [3] [4] It is the only Caribbean species of iguana which is still regularly hunted for food for human consumption. [1] [3] [4] Feral pigs pose a threat to the iguanas, as they dig up eggs from iguana nests within termite mounds. [1] [3] [4] Feral and domestic dogs prey upon juvenile and adult iguanas as well. [1] [3] [4] Feral goats have also been known to compete with the iguanas for food. [1]
As with other rock iguanas, their habitat is in rapid decline due to development and logging. [1]
Like all Bahamian rock iguanas, this species is protected in the Bahamas under the Wild Animals Protection Act of 1968. [1] However, no areas have been specifically designated for the protection of iguanas on Andros and no specific conservation programs are in place. [1]
There are currently no captive breeding programs for this animal.
The Turks and Caicos rock iguana is a species of lizard endemic to the Turks and Caicos islands. This small iguana can reach 30 in (76 cm) and becomes mature at seven years and may live for twenty. A single clutch of up to nine eggs is laid each year, and these take three months to hatch. This iguana is mostly herbivorous, but supplements this by adding some animal matter to its diet.
The blue iguana, also known as the Grand Cayman ground iguana, Grand Cayman blue iguana or Cayman Island rock iguana, is an endangered species of lizard which is endemic to the island of Grand Cayman. It was previously considered to be a subspecies of the Cuban iguana, Cyclura nubila, but in a 2004 article Frederic J. Burton reclassified it as a separate species because according to him the genetic differences discovered four years earlier between the different C. nubila populations warranted this interpretation. The blue iguana is one of the longest-living species of lizard.
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The northern Bahamian rock iguana is a species of lizard of the genus Cyclura that is found on Andros Island and the Exuma islands in the Bahamas. Its status on the IUCN Red List is vulnerable, with a wild population of less than 5,000 animals.
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Cyclura ricordii, also known as Ricord's ground iguana or Ricord's rock iguana, is an endangered species of medium-sized rock iguana, a large herbivorous lizard. It is endemic to the island of Hispaniola. It is known to coexist with the nominate subspecies of the rhinoceros iguana ; the two species are the only taxa of rock iguana to do so. The natural habitats of its three subpopulations are hot, dry, wooded savanna on limestone with access to soil and sandy flats in southern Hispaniola. It is threatened by predation by introduced predators and habitat loss, due to overgrazing and charcoal manufacture.
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Cyclura rileyi, commonly known as the Bahamian rock iguana or the San Salvador rock iguana, is a critically endangered species of lizard in the family Iguanidae. The species is native to three island groups in the Bahamas, and is in decline due to habitat encroachment by human development and predation by feral dogs and cats. There are three subspecies: the Acklins ground iguana, the White Cay iguana, and the nominotypical subspecies.
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Cyclura cychlura inornata, the Allen Cays rock iguana or Allen Cays iguana, is a subspecies of the northern Bahamian rock iguana that is found on Allen's Cay and adjacent islands in the Bahamas. Its status in the IUCN Red List is critically endangered. The population has been growing over the last century. Although it was considered extinct in 1916, there are as of 2018 at least 482 mature adult animals counted on two islands, Leaf Cay and U Cay, and a few hundred on at least five other nearby islands where they have recently spread to by unknown means, as well as many juveniles.
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