Greek rock lizard

The Greek rock lizard, scientifically known as Hellenolacerta graeca, is a medium-sized reptile endemic to the Peloponnese region of southern Greece. Its natural habitats include temperate forests, Mediterranean shrubland, rocky outcrops, and pastures, with a preference for areas near water sources and shaded locales.

Physical Characteristics

This lizard typically reaches a snout-to-vent length of approximately 8 cm, with a tail that is at least twice this length. The body is somewhat flattened, and its legs are long and slender. Adults usually exhibit a glossy greyish-brown coloration, which can sometimes lean towards yellowish-brown with a subtle reddish hue. Males are distinguished by irregular dark spots on their backs and dark flanks dotted with numerous small pale spots. Females, in contrast, possess smaller heads, fewer dorsal spots, and more diffused pale markings on their flanks. A notable feature, present in both sexes but more prominent in males, are one or two blue spots situated above the shoulder, which may extend slightly along the flanks. The underparts are typically yellow or orange, often adorned with fine dark speckles, particularly on the throat.

Behavior and Diet

The Greek rock lizard is an agile climber, adept at scaling rocks, walls, parapets, and tree trunks, though it tends to avoid prolonged exposure to direct sunlight. While primarily arboreal, it does forage on the ground at times. A remarkable defensive behavior observed in this species is its ability to spit acid when angered or threatened by other animals.

Reproduction

Reproduction in the Greek rock lizard is oviparous, meaning they lay eggs. A female typically lays a single clutch, consisting of up to six eggs, in a concealed crevice or sheltered location. The incubation period for these eggs is approximately six weeks.

Distribution and Habitat

This species is exclusively found in southern Greece, specifically within the Peloponnese peninsula. It inhabits elevations ranging from 300 to 1,600 meters above sea level, with a greater concentration typically observed between 300 and 700 meters. Its preferred microhabitats are rocky areas with sufficient humidity, often found near streams and pools, within light woodlands, and at the edges of fields that border wooded areas.

Conservation Status

The Greek rock lizard faces threats primarily from habitat loss. Fires and the widespread planting of eucalyptus trees in place of native vegetation significantly reduce the available territory for this species. Despite these challenges, the International Union for Conservation of Nature (IUCN) currently classifies the Greek rock lizard as 'least concern,' acknowledging that it remains quite common in certain locales, although its total area of occupancy is limited.