Showing posts with label Iguana. Show all posts
Showing posts with label Iguana. Show all posts

Saturday, November 5, 2011

Turks and Caicos Rock Iguana

 
  
The Life of Animals | Turks and Caicos Rock Iguana | The Turks and Caicos rock iguana (Cyclura carinata) is a critically endangered species of lizard of the genus Cyclura That is endemic to the Turks and Caicos islands. Turks and Caicos rock iguanas has 50.000, the healthiest population of rock iguanas in the Caribbean. The Turks and Caicos rock iguana, Cyclura carinata carinata, was first described by American zoologist Richard Harlan in Fauna Americana in 1825 Its generic name (Cyclura) is derived from the Ancient Greek Cyclos (κύκλος) meaning "circular" and Oura (οὐρά) meaning "tail", after the thick-ringed tail



characteristic of all Cyclura carinata Its specific name means "keeled" and refers to the animal's scales. The species is endemic to 50-60 of the 200 islands and cays That make up the Turks and Caicos Islands It has one subspecies the which lives on Booby Cay, Bartsch's iguana (Cyclura carinata bartschi). The Turks and Caicos rock iguana dwells in rocky areas and sandy habitats as sand is required for nesting. Like all Cyclura species, the Turks and Caicos rock iguana is primarily herbivorous, consuming leaves, flowers, and fruits from over 58 different plant species This diet is very rarely supplemented with Insects, mollusks, crustaceans, arachnids, lizards, and carrion It has been That noted in captivity, it eats Both animal and plant food. 



Little Water Cay is now a nature reserve and Neither dogs nor cats are permitted on the island to Ensure the survival of the critically endangered species In 2000 Scientists from the San Diego Zoo's Division of Conservation and Research for Endangered Species (CRES), under the direction of Conservation Research Fellow Dr. Glenn Gerber 218 translocated iguanas from Big Ambergris Cay and Little Water were the resource persons where Their Populations Threatened to four uninhabited cays within the Turks and Caicos reserve system. 



Legislation to protect the iguanas has been Drafted by the Turks and Caicos government in 2003 Additionally, the National Trust for the Turks and Caicos Islands has stewardship for the Little Water Cay to Ensure That it is not mismanaged and has initiated a program to remove feral cats from Pine Cay and Water Cay
 

Ctenosaura


The Life of Animals | Ctenosaura | Ctenosaura is a genus of lizard commonly known as spinytail iguanas. At least two species, Ctenosaura pectinata and Ctenosaura similis, have been introduced into the United States in southern Texas and Miami, Florida.



The world record sprint speed for lizards (21.5 miles / h or 34.6 km / h) was Attained by the Costa Rican spiny-tailed iguana (Ctenosaura similis) The genus Ctenosaura represents the most diverse group of iguanas with 15 currently Recognized and at least two unrecognized species.

Chuckwalla

  
The Life of Animals | Chuckwalla | Chuckwallas are large lizards found primarily in arid regions of the Southwestern United States and northern Mexico. There are five species of chuckwallas, all within the genus Sauromalus; They are part of the iguanid family, Iguanidae. The generic name, Sauromalus, is a combination of two Ancient Greek words: σαῦρος (sauros) meaning "lizard". and ομαλυς (omalus) meaning "flat Chuckwalla The common name derives from the Shoshone word" tcaxxwal "or Cahuilla" caxwal ", transcribed by Spaniards as" chacahuala



Chuckwallas are a stocky wide-bodied lizard with a flattened midsection and prominent belly. The Common Chuckwalla (Sauromalus Ater) measures 40 cm in length whereas insular Such species as the giant of San Esteban Island Chuckwalla (Sauromalus varius) can measure as much as 76 cm in total length. They are sexually dimorphic with males having reddish-pink to orange, yellow or light gray bodies and black heads, shoulders and Limbs; females and the immature have bodies with Scattered spots or contrasting bands of light and dark in shades of gray or yellow Males are Generally larger than females and possess well-developed femoral pores located on the inner sides of Their thighs; these pores Produce secretions believed to play a role in marking territory



The genus Sauromalus has a wide distribution in biomes of the Sonoran and Mojave Deserts The Common Chuckwalla (Sauromalus Ater) is the species with the greatest range, found from southern California east to southern Nevada and Utah, western Arizona and south to Baja California and Northwestern Mexico The Peninsular Chuckwalla (Sauromalus australis) is found on the eastern portion of the southern half of the Baja California peninsula



The other species are island-dwelling and therefore have much more restricted distributions. The Angel Island Chuckwalla (Sauromalus hispidus) is found on Isla Ángel de la Guarda and Surrounding islands off the coast of the Baja California peninsula Two rare and endangered species are the Montserrat Chuckwalla (Sauromalus slevini) found on Islas Carmen, Coronados and Montserrat in the southern Gulf of California and the San Esteban Chuckwalla or Painted Chuckwalla (Sauromalus varius) found on San Esteban Island, Lobos and Pelicanos. The eggs hatch in late September Chuckwallas may live for 25 years or more.

Desert Iguanas

  
The Life of Animals | Desert Iguanas | The desert iguana (Dipsosaurus dorsalis) is one of the most common lizards of the Sonoran and Mojave deserts of the Southwestern United States and Northwestern Mexico.  Dipsosaurus is a monotypic genus with D. Recognized dorsal being its only species



The desert iguana is a blunt, medium-sized lizard the which grows to 16 in. (41 cm) including the tail They are pale gray-tan to cream in color with a light brown reticulated pattern on Their Backs and sides. In the southern portion of its range this lizard lives in areas of arid subtropical scrub and tropical deciduous forest.



These lizards can withstand high temperatures and are out and about after other lizards have retreated into Their Burrows. They Burrow extensively, and Will Often climb into shrubs for shelter and defense. Their Burrows are usually constructed in the Mounds of sand That accumulate around the bases of bushes like the creosote. They also use ready-made Often Burrows of kit foxes and desert tortoises.



Their preferred habitat is largely contained within the range of the creosote bush, Mainly dry, sandy desert scrubland below 3.300 ft (1.000 m). In the southern portion of its range this lizard lives in areas of arid subtropical scrub and tropical deciduous forest. These lizards can withstand high temperatures and are out and about after other lizards have retreated into Their Burrows.

Galapagos Land Iguana

 
  
The Life of Animals | Galapagos Land Iguana | The Galapagos Land Iguana (Conolophus subcristatus) is a species of lizard in the Iguanidae family. It is endemic to the Galápagos Islands, primarily the islands of Fernandina, Isabela, Santa Cruz, North Seymour, Hood and South Plaza. The Galapagos Land Iguana varies in morphology and coloration different island Among Populations There are two taxonomically distinct forms of Conolophus inhabiting the western part of the islands (C. pallidus and C. Rosada) and one in the central part (C subcristatus) Its generic name, Conolophus, is derived from two Greek words: conos (κώνος) meaning "spiny" and lophos (λοφος) meaning "crest" or "plume", denoting the spiny crests along Their Backs.


 

Being cold-blooded, They absorb heat from the sun by basking on volcanic rock, and at night sleep in Burrows to Conserve Their body heat These iguanas also enjoy a Symbiotic relationship with birds; Parasites and the birds remove ticks, providing relief to the iguanas and food for the birds. Land iguanas are primarily herbivorous; however, some individuals have shown That They are opportunistic carnivores Their diet supplementing with Insects, centipedes and carrion.


 

It is estimated That the Galapagos Land Iguana has a 50 to 60-year lifespan Galapagos Land Iguanas Become sexually mature anywhere the between eight and fifteen years of age, Depending on the which island They are also varies from season ing the between islands, but soon after-ing, the females migrate to sandy areas to nest, laying 2-25 eggs in a Burrow 18 inches deep The eggs hatch anywhere from 90 to 125 days later



On South Plaza Island, where the territories of Marine Iguanas and Land Iguanas overlap, the two Sometimes interbreed, resulting in a mixture of features from each species; resulting in what is known as a Hybrid Iguana The most Likely unions growing niche to be the between male Marine Female Iguanas and Land Iguanas. Despite Their long separation time and Their being two distinct species from different genera, the offspring are viable, although sterile Likely That it is estimated the between 5.000 and 10.000 acres of land iguanas found in the Galapagos iguanas These were the resource persons so abundant on Santiago Island at one time That naturalist Charles Darwin remarked Pls it was King James Island Called That Hearst's translocated iguanas survived, and Became the breeding stock for the Charles Darwin Research Station captive breeding program the which has successfully reintroduced the species to Baltra and a number of other areas Visitors today frequently see iguanas on Both the runway of the Baltra airport or while They cross the road.


Thursday, October 20, 2011

Marine Iguana

  
The Life of Animals | Marine Iguana | The Marine Iguana (Amblyrhynchus cristatus) is an iguana found only on the Galápagos Islands that has the ability, unique among modern lizards, to live and forage in the sea, making it a marine reptile. The Iguana can dive over 30 ft (10 m) into the water. It has spread to all the islands in the archipelago, and is sometimes called the Galapagos Marine Iguana.
 

 

In adult males, coloration varies with the season. On land, the marine iguana is rather a clumsy animal, but in the water it is a graceful swimmer. As an ectothermic animal, the marine iguana can spend only a limited time in the cold sea, where it dives for algae. The males assemble large groups of females to mate with, and guard them against other male iguanas.


 

Marine iguanas have also been found to change their size to adapt to varying food conditions. When food conditions returned to normal, the iguanas returned to their pre-famine size. El Niño effects cause periodic declines in population, with high mortality, and the marine iguana is threatened by predation by exotic species. The marine iguanas have not evolved to combat newer predators. Therefore, cats and dogs both eat the young iguanas and dogs will kill adults due to the iguanas' slow reflex times and tameness.