词条 | Cyprinodon desquamator |
释义 |
| image = Cyprinodon Desquamator.jpg | taxon = Cyprinodon desquamator | authority = C. H. Martin & Wainwright, 2013 }}Cyprinodon desquamator is a scale-eating species of pupfish in the genus Cyprinodon. It is endemic to hypersaline interior lakes on San Salvador Island, Bahamas. It coexists alongside two other closely related Cyprinodon species C. brontotheroides and C. variegatus. Together, these three species represent a recent adaptive radiation, each having moved into a difference niche within their specialized environment. Each of these species are defined by distinct trophic adaptations that have affected various aspects of functional morphology.[1]Cyprinodon desquamator has enlarged adductor muscles, a small in-lever to out-lever ratio for rapidly closing its large lower jaw, and an elongated body for quickly performing scale-removing strikes on Cyprinodon and Gambusia species.[2] Specific epithet: 'desquamator' comes from the Latin "one who removes scales from fishes", describing the scale-eating trophic specialization of this species, unique among Cyprinodontiform fishes.[3][3] ColorationGeneral body color is silvery tan marked by irregular dark, wide bars along the length of the body in both sexes. Characteristic of the genus, mature males display a metallic blue anterodorsal region. This species uniquely lacks the typical black terminal margin to the caudal fin, which is replaced by black pigmentation covering the median fins. Females and juveniles display the typical black and white ocellus on the dorsal fin. Breeding males display a distinctive coloration of slate gray to jet black pigmentation throughout body and fins, broken only by a speckling of metallic blue in the anterodorsal region. Unlike most congeners, breeding males do not display any orange ventral coloration that is replaced by gray or black pigmentation.[4] References1. ^{{cite journal |last1=Martin |first1=Christoper |title=Multiple Fitness Peaks on the Adaptive Landscape Drive Adaptive Radiation in the Wild |journal=Science |date=11 January 2013 |volume=339 |issue=6116 |pages=208–211 |doi=10.1126/science.1227710 |url=http://science.sciencemag.org/content/339/6116/208.full |pmid=23307743}} {{Taxonbar|from=Q20826779}}2. ^{{cite journal| author1=Martin, C. | author2=P.C. Wainwright | year=2011 | title=Trophic novelty is linked to exceptional rates of morphological diversification in two adaptive radiations of Cyprinodon pupfish | journal=Evolution | volume=65 | issue=8 | pages=2197–2212 | doi=10.1111/j.1558-5646.2011.01294.x| pmid=21790569 }} 3. ^{{Cite journal|last=Martin|first=Christopher H.|last2=Wainwright|first2=Peter C.|date=2013-08-19|title=On the Measurement of Ecological Novelty: Scale-Eating Pupfish Are Separated by 168 my from Other Scale-Eating Fishes|journal=PLOS ONE|volume=8|issue=8|pages=e71164|doi=10.1371/journal.pone.0071164|issn=1932-6203|pmc=3747246|pmid=23976994}} 4. ^1 http://www.eve.ucdavis.edu/~wainwrightlab/Martin&WainwrightPeabody2013.pdf 5 : Cyprinodon|Endemic fauna of the Bahamas|Fish of the Caribbean|Freshwater fish of North America|Fish described in 2013 |
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