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Be'er Sheva fringe-fingered lizard
The Be'er Sheva fringe-fingered lizard (''Acanthodactylus beershebensis'') is a species of lizard in the Lacertidae family. It is a member of the subgenus Lacertinae, and the tribe Acanthodactylus (spiny footed lizards). Considered a separate species based on morphological distinction, and isolated location; it shares a large portion of its genetics with ''Acanthodactylus pardalis'' in this genus.〔Carretero, Miguel. Fonseca, Miguel. García-Muñoz, Enrique. Brito José. Harris, James (2011). Adding ''Acanthodactylus beershebensis'' to the mtDNA phylogeny of the ''Acanthodactylus pardalis'' group. North-Western Journal of Zoology 7:138-142.〕 Many of the individual species under this genus are similar, but varying coloration explains why each species have been separated. Like all ''Acanthodactylus'', the beershebensis lays eggs, varying from three to seven eggs at a time. Adults vary in size from 17 to 20 centimeters, but can get much larger. It is endemic to the loess scrublands of the Negev desert in Israel and the Palestinian Territories, a biodiversity hotspot.〔Moravec, J., S. Baha-El Din, H. Seligmann, N. Sivan, and Y. L. Werner. 1999. Systematics and distribution of the ''Acanthodactylus pardalis'' group (Reptilia: Sauria: Lacertidae) in Egypt and Israel. Zoology in the Middle East 17:21–50.〕
It was declared critically endangered after an assessment in 2006 due to a serious population decline. Some estimates claim numbers have declined 80% over the last three generations. The small populations are severely fragmented across the Negev desert. This decline has been caused by habitat destruction and degradation. Conservation efforts also damaged the population, but a small portion of their original range remains untouched and protected.〔
==Appearance and offspring ==
The hatchlings of ''Acanthodactylus beershebensis'' have a bright blue tail and dark and yellowish stripes on their body. However after a few weeks after birth the tail becomes brownish gray and its body turns to a blotchy brownish, sand-gray〔Dror Hawlena. Colorful tails fade when lizards adopt less risky behaviors. Behavioral Ecology and Sociobiology. December 2009. Volume 64, Issue 2: 205-213〕 coloration, which remains through adulthood. This pattern gave the name to the ''Acanthodactylus pardalis'' group to which ''Acanthodactylus beershebensis'' belongs. (In Greek, ''pardalis'', means leopard). On average, the species live less than a year, hatching around the end of May.〔Dror Hawlena, Rami Boochnik, Zvika Abramsky, and Amos Bouskila (2006). "Blue tail and striped body: why do lizards change their infant costume when growing up?" Behavioral Ecology 17 (6): 889-896.〕
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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