Distribution: Greece (Skyros Archipelago, Northern Sporades, Piperi Island) weigandi: Piperi Island
Habitat and Ecology
IUCN Red List Assessment
Red List Category
Red List Criteria
- 2006Vulnerable(IUCN 2006)
Skyros wall lizard
The Skyros wall lizard (Podarcis gaigeae) is a species of lizard in the Lacertidae family. It is endemic to the island of Skyros, Greece but the subspecies Podarcis gaigeae weigandi is found on the island of Piperi. The Skyros wall lizard exhibits island gigantism on small islets surrounding Skyros. The Skyros wall lizard also exhibits a throat color polymorphy with six different throat color morphs that are expressed in both females and males.
The Skyros wall lizard reaches a snout-to-vent length of about 8.5 cm (3.3 in). It has a deep head and a tail approximately twice the length of the body. The colouring is rather variable, usually being green, olive-green or brownish with a dark vertebral band and dorso-lateral stripes. The mottled flanks often have a single blue spot above the shoulder. The underparts are white, often with dark spots on the throat, the lizards on each island having characteristic markings.
Distribution and habitat
The Skyros wall lizard occurs only on Skyros and on Piperi Island in the Sporades archipelago in the northern Aegean Sea. It is the only small lizard occurring on these islands. Its natural habitats are Mediterranean-type shrubby vegetation, rocky areas, and rocky shores.
The Skyros wall lizard has a total area of occupancy of less than 20 square kilometres (7.7 sq mi) but is common within that range. Although the population trend is unknown, no specific threats are apparent apart from the risks posed by wildfire. However the introduction onto its island home of some predatory species could threaten its survival so the International Union for Conservation of Nature has assessed its conservation status as being "vulnerable".
- Lymberakis, P. (2009). "Podarcis gaigeae". IUCN Red List of Threatened Species. Version 2014.1. International Union for Conservation of Nature. Retrieved 25 July 2014.
- Runemark, A. 2012. Island biogeography and population divergence in the Skyros wall lizard. Doctoral thesis, Lund University, Lund. http://www.lu.se/o.o.i.s?id=12588&postid=2518407
- Runemark A., Hansson B., Pafilis P., Valakos E.D. and Svensson, E.I. 2010. Island biology and morphological divergence of the Skyros wall lizard Podarcis gaigeae: a combined role for local selection and genetic drift on color morph frequency divergence? BMC Evol. Biol. 10:269. http://www.biomedcentral.com/1471-2148/10/269
- Arnold, E. Nicholas; Ovenden, Denys W. (2002). Field Guide: Reptiles & Amphibians of Britain & Europe. Collins & Co. pp. 178–179. ISBN 9780002199643.
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