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anoles

anoles (Anolis) See IGUANIDAE.

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Anolis

Anolis (anoles) See IGUANIDAE.

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"Anolis." A Dictionary of Zoology. . Encyclopedia.com. 13 Nov. 2018 <https://www.encyclopedia.com>.

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Anoles

Anoles

Anoles are small lizards in the genus Anolis (family Iguanidae), found only in the Americas, mostly in the tropics. Because anoles can change the color of their skin according to mood, temperature, humidity, and light intensity, these animals are sometimes called chameleons. However, none of the more than 300 species of anoles is closely related to the true chameleons (family Chamaeleonidae) of Eurasia and Africa.

Aggressive encounters and defense responses to predators prompt the extension of the throat fan, or dewlap, of male anoles. This visual display is often accompanied by a vigorous demonstration of head-bobbing, the frequency and amplitude of which are important among anoles in species recognition.

Because anoles spend a great deal of time engaged in displays and other activities associated with holding their breeding territory, the males are at a relatively greater risk of predation than the more inconspicuous females. However, the greater risks of predation are balanced by the better reproductive success a male anole may achieve during the period of his life that he is able to hold a high-quality territory.

The green anole (Anolis carolinensis ) is the only species native to North America, occurring in the southeastern United States, as well as in Cuba and nearby islands. The green anole does not hibernate and is active on warm, sunny days throughout the winter, remaining inactive in a sheltered place on colder days. The usual color of these animals is brown, but male animals quickly become green when engaged in aggressive encounters with other males, or when they are courting a female.

Four additional anole species have been introduced to Florida from their natural ranges in the West Indies or Central America. These are the brown anole (Anolis sagrei), the large-headed anole (A. cybotes), the bark anole (A. distichus), and the knight anole (A. equestris). Although these species are not part of the native fauna of Florida, they are now entrenched components of that states ecosystems, as are many other introduced species.

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Notes:
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Anoles

Anoles

Anoles are small lizards in the genus Anolis (family Iguanidae), found only in the Americas, mostly in the tropical countries. Because anoles can change the color of their skin according to their mood, temperature , humidity , and light intensity, these animals are sometimes called chameleons . However, none of the more than 300 species of anoles is closely related to the true chameleons (family Chamaeleonidae) of Eurasia and Africa .

Aggressive encounters and defense responses to predators prompt the extension of the throat fan, or dewlap, of male anoles. This stereotyped visual display is often accompanied by a vigorous demonstration of head-bobbing, the frequency and amplitude of which are important among anoles in species recognition.

Because anoles spend a great deal of time engaged in displays and other activities associated with holding their breeding territory, the males are at a relatively greater risk of predation than the more inconspicuous females. However, the greater risks of predation are balanced by the better reproductive success a male anole may achieve during the period of his life that he is able to hold a high-quality territory.

The green anole (Anolis carolinensis) is the only species native to North America , occurring in the southeastern United States, and also in Cuba and nearby islands. The green anole does not hibernate, and is active on warm, sunny days throughout the winter, remaining inactive in a sheltered place on colder days. The usual color of these animals is brown, but male animals quickly become green when they are engaged in aggressive encounters with other males, or when they are courting a female.

Four additional species of anoles have been introduced to Florida from their natural ranges in the West Indies or Central America. These are the brown anole (Anolis sagrei), the large-headed anole (A. cybotes), the bark anole (A. distichus), and the knight anole (A. equestris). Although these species are not part of the native fauna of Florida, they are now entrenched components of that state's ecosystems as are many other introduced species of plants and animals.



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"Anoles." The Gale Encyclopedia of Science. . Encyclopedia.com. 13 Nov. 2018 <https://www.encyclopedia.com>.

"Anoles." The Gale Encyclopedia of Science. . Encyclopedia.com. (November 13, 2018). https://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/anoles-0

"Anoles." The Gale Encyclopedia of Science. . Retrieved November 13, 2018 from Encyclopedia.com: https://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/anoles-0

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.