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Darevskia mixta


Darevskia mixta
Darevskia mixta
Darevskia mixta
Darevskia mixta
Darevskia mixta f
Darevskia mixta f
Accepted name: Darevskia mixta Mehely, 1909
Common name: Ajarian Lizard
Georgian name: აჭარული ხვლიკი
Synonyms: Lacerta mixta
Valid subspecies: N/A
Taxonomic rank: Species
Taxonomy according to: http://www.reptile-database.org/

IUCN Status: NT
National Red list status: VU
მინიჭებული სტატუსი სრულად და მინიჭების არგუმენტაცია/Remark for Georgian status

VU (B1a). Possibly, an endemic of Georgia. Few findings from Turkey need additional validation, and anyway, Georgia holds over 90% of the species' range. The range fragmented. Two geographic populations from the Great and the Lesser Caucasus, extent of occurrence of each of them less than 3,000 km^2, are isolated from one another. Area of occupancy more than ten times less than the extent of occurrence; habitats limited to the rocky areas in the forest belt (all the range) and forest and subalpine belts (Lesser Caucasus).  

Introduced/ინტროდუცირებული: Native
ენდემიზმი/Endemism: Endemic of the Caucasus and, most likely, endemic of Georgia
დაკავებული ტერიტორია/AOO B2<2,000 km^2
Legal Status/დაცულობის სტატუსი:

Status Comment:
Monotypic species.
არეალის მდგომარეობა/Range typefragmented, in rocky outcrops; Greater and Lesser Caucasian ranges isolated from each other
ჰაბიტატის შემცირება /decline in habitat area or quality Not documented
ჰაბიტატის ფლუქტუაცია/habitat fluctuation cNot documented


Populations of the Greater and the Lesser Caucasus reciprocally monophyletic, the population of the Greater Caucasus genetically less variable and genetically younger than the population from the Lesser Caucasus. The findings in Turkey need validation. 

Distribution: Lesser Caucasus between Borjomi Gorge and Adigeni; Greater Caucasus between drainages of Rioni and Enguri

Reference for occurrence in Georgia: Darevsky, IS, 1967. Skal'nye Jashchericy Kavkaza. Leningrad, Nauka

Darevskii IS. 1967. Rock lizards of the Caucasus: systematics,ecology and phylogenesis of the polymorphic groups ofCaucasian rock lizards of the subgenus. Nauka: ArchaeolacertaLeningrad [in Russian: English translation publishedby the Indian National Scientific Documentation Centre,New Delhi, 1978].

Fu J, Murphy RW, Darevsky IS. 1999. Limited geneticvariation in Lacerta mixta and its parthenogenetic daughterspecies: evidence from cytochrome b and ATPase 6 geneDNA sequences. Genetica 105: 227–231.

Murphy RW, Fu J, MacCulloch RD, Darevsky IS,Kupriyanova LA. 2000. A fine line between sex and unisexuality:the phylogenetic constraints on parthenogenesisin lacertid lizards. Zoological Journal of the Linnean Society130: 527–549.

Tarkhnishvili D, Kandaurov AS, Bukhnikashvili AK.2002. Declines of amphibians and reptiles in Georgia duringthe 20th century: virtual vs. actual problems. Zeitschrift fürFeldherpetologie 9: 89–107.

 Tarkhnishvili D., Gavashelishvili A., Avaliani A., Murtskhvaladze M. & Mumladze L. (2010): Unisexual rock lizard might be outcompeting its bisexual progenitors in the Caucasus. Biological Journal of the Linnean Society 101:447-460

Gabelaia, M., Tarkhnishvili, D., & Murtskhvaladze, M. (2015). Phylogeography and morphological variation in a narrowly distributed Caucasian rock lizard, Darevskia mixta. Amphibia-Reptilia36(1), 45-54.

Citation: David Tarkhnishvili, 2021-03-09. [http://www.biodiversity-georgia.net/index.php?taxon=Darevskia mixta]. .Darevskia mixta. in: Tarkhnishvili D, Chaladze G (Editors). 2013. Georgian biodiversity database. http://www.biodiversity-georgia.net/. Downloaded on: 25 October 2021