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Anolis ecomorphs
The ecomorph concept is a term first coined by Ernest 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 (especifically in Puerto Rico) upon observing their evolutionary radiation, although it has since been used widely elsewhere.〔(''Research Summary.'' ) Losos Laboratory. Harvard University. January 2013. Retrieved 10 September 2013.〕
''Anolis'' lizards, also known as anoles, have repeatedly evolved into similar forms on different islands, dubbed 'ecomorphs'. Convergence is in microhabitat specialty, behavior, and morphology.〔(''2009 Anolis symposium.'' ) Ernest Williams. Harvard University. Department of Organismic and Evolutionary Biology. 2009. Retrieved 10 September 2013.〕 Langerhans, Knouft & Losos call the set of ''Anolis ''lizard ecomorphs of the Greater Antilles "a classic example of convergent evolution."〔Langerhans, Knouft & Losos (2006) Evolution, vol. 6, p.362.〕〔(''Topic: Anolis lizard ecomorphs.'' ) Map of Life: Convergent Evolution Online. Retrieved 10 September 2013.〕 Jonathan Losos defined six ''Anolis'' ecomorphs according to the predominant microhabitat (e.g. grasses, open ground, different parts of trees) of the respective anolis: crown-giant, grass-bush, trunk, trunk-crown, trunk-ground, and twig.〔〔("Anolis lizard ecomorphs." ) Map of Life. 10 September 2013. 10 September 2013.〕
== Crown Giant ecomorph ==
These are anoles which inhabit the uppermost canopy of trees, they all share certain morphological characteristics such as relatively large body size, large heads, large sub-digital lamellae and serrated dorsal crest,most species are predominantly green. Crown giant anoles can be informally subdivided into long legged species (which move by jumping from tree to tree) and short legged species (which do not often jump and mostly crawl from one area to another.) Because of their large size these anoles can take a wide range of prey items from smaller lizards to small birds,all species are also known to consume fruit. Though they all share a similar body plan crown giant anoles vary significantly in size from one island to the other. A few examples of crown giant anoles are shown below.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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