Lilford's wall lizard
Lilford's wall lizard is a species endemic to the Gymnesian Islands of Spain, known for its robust, streamlined body and smooth scales. Originally found on the larger islands of Mallorca and Menorca, it has since been confined to numerous smaller, uninhabited islets due to the introduction of alien species. This lizard plays a role in pollinating several endemic plants and is characterized by its relative tameness and varied coloration.
Key Facts
- ›Endemic to the Gymnesian Islands, part of the Balearic Islands, Spain.
- ›There are 27 recognized subspecies, many evolving on individual islets.
- ›Adults typically have a snout-to-vent length of up to 8 cm, with a tail about 1.8 times the body length.
- ›Diet includes insects, spiders, arthropods, snails, vegetable matter, flowers, fruits, nectar, and pollen.
- ›Plays a role in the pollination of several endemic plants.
- ›Listed as 'Endangered' by the IUCN due to population decline and habitat loss.
Lilford's Wall Lizard
Gymnesian Islands , Spain
- Temperate Mediterranean-Type Shrubby Vegetation
- Rocky Areas
- Rocky Shores
- Scrubland
- Woodland
- Robust, Streamlined Lizard With A Short Head and Rounded Body.
- Smooth, Unkeeled Scales.
- Dorsal Surface Typically Greenish Or Brownish, With Variations Among Island Subpopulations.
- Usually Possesses A Pale Dorso-Lateral Stripe; May Have Dark Streaks Or Three Dark Lines Along the Spine.
- Flanks Can Be Slightly Reticulated.
- Underside Is White, Cream, Or Pinkish.
- Throat May Be Blotched With Darker Color.
- Juveniles Sometimes Have A Blue Tail.
- Tail Is Approximately 1.8 Times the Length of the Body.
- Insects
- Spiders
- Arthropods
- Snails
- Vegetable Matter
- Scraps of Food Regurgitated By Gulls
- Remains of Prey and Flies Around Eleonora's Falcon Nesting Sites
- Juveniles and Tails of Conspecifics
- Relatively Tame and Easy To Approach.
- Opportunistic Feeder, Utilizing Available Food Sources.
- Participates In Seed Dispersal and Pollination of Certain Plants.
- Can Exhibit Cannibalistic Behavior Towards Juveniles.
- Ground-Dwelling.
Cats, False Smooth Snake, Weasel
Habitat Loss, Introduction of Alien Species
About Lilford's wall lizard
Lilford's wall lizard, scientifically known as Podarcis lilfordi, is a reptile species endemic to the Gymnesian Islands, an archipelago forming the easternmost part of the Balearic Islands in Spain. This lizard is characterized by its robust, streamlined body, short head, and smooth, unkeeled scales. Its dorsal coloration is typically greenish or brownish, often featuring a pale dorso-lateral stripe, though significant variation exists among its numerous island subpopulations. Juveniles may display a distinctive blue tail.
Habitat and Distribution
Originally, Lilford's wall lizard was found across the main islands of Mallorca and Menorca, as well as the surrounding islets. However, the introduction of alien species, dating back to Roman times, has led to its extirpation from the larger islands. Today, the species is primarily confined to the numerous uninhabited islets surrounding Mallorca and Menorca. These islets, often isolated by sea, have fostered the evolution of distinct subspecies, with 27 recognized varieties documented. The lizard inhabits low-altitude environments, favoring rocky areas, Mediterranean shrubland, and rocky shores. On the island of Cabrera, it has also been observed in woodland habitats.
Behavior and Diet
Lilford's wall lizard is noted for its relatively tame disposition, making it approachable. Its diet is opportunistic and varied, comprising insects, spiders, other arthropods, and snails. It also supplements its diet with vegetable matter, including flowers, fruits, nectar, and pollen. Remarkably, the lizard plays a role in the pollination of several endemic plants native to the Gymnesian Islands. It has also been observed scavenging around bird nests, feeding on regurgitated scraps from gull chicks and the remains of prey from Eleonora's falcons, along with associated flies. In some instances, cannibalism, including the consumption of juveniles and tails of conspecifics, has been recorded.
Reproduction and Conservation
This species reproduces oviparously, laying eggs during the summer months. Females can produce up to three clutches per season, with each clutch containing one to four eggs. These eggs typically hatch after approximately eight weeks, with the young lizards measuring between 3 to 3.5 cm from snout to vent upon emergence. The population of Lilford's wall lizard is unfortunately in decline. Its former abundance on Mallorca and Menorca has diminished, likely due to the proliferation of introduced predators such as cats, and possibly snakes and weasels. Consequently, with its total area of occupancy limited to less than 500 km², the IUCN classifies Lilford's wall lizard as Endangered.
Source: Wikipedia ↗
Frequently Asked Questions
What is Lilford's wall lizard?
Lilford's wall lizard (Podarcis lilfordi) is a species of lizard belonging to the Lacertidae family. It is native to the Gymnesian Islands in Spain and is distinguished by its streamlined body, smooth scales, and varied coloration depending on its island subpopulation.
Where does Lilford's wall lizard live?
This lizard is endemic to the Gymnesian Islands, specifically the easternmost Balearic Islands of Spain. While historically present on Mallorca and Menorca, it has been largely confined to the smaller, uninhabited islets surrounding these major islands.
What does Lilford's wall lizard eat?
Lilford's wall lizard has a varied diet that includes insects, spiders, other arthropods, and snails. It also consumes vegetable matter such as flowers, fruits, nectar, and pollen, and has been observed feeding on scraps around bird nests.
What are the threats to Lilford's wall lizard?
The primary threat to Lilford's wall lizard is habitat loss, exacerbated by the introduction of alien species. Introduced predators like cats and possibly snakes and weasels have contributed to its decline on the larger islands, leading to its current endangered status.
How does Lilford's wall lizard reproduce?
Lilford's wall lizard is oviparous, meaning it lays eggs. Breeding occurs in the summer, and females can lay up to three clutches, each containing one to four eggs. The eggs typically hatch after about eight weeks.
What is the conservation status of Lilford's wall lizard?
The International Union for Conservation of Nature (IUCN) lists Lilford's wall lizard as 'Endangered'. This classification is due to a significant decline in its population and a total area of occupancy on its island habitats that is less than 500 km².
Related Lizards
Podarcis lilfordi
Lilford's wall lizard, scientifically known as Podarcis lilfordi, is a species of lizard native to the Gymnesian Islands of Spain. This robust, streamlined lizard typically measures up to 8 cm in snout-to-vent length and inhabits rocky areas, shores, and Mediterranean-type shrubland. While originally found on the larger islands of Mallorca and Menorca, it is now primarily confined to smaller, uninhabited islets, where numerous subspecies have evolved.
Podarcis pityusensis
The Ibiza wall lizard (Podarcis pityusensis) is a species native to the Balearic Islands, primarily Ibiza and Formentera. This lizard is characterized by its green, grey, or brownish dorsal surface, a pale dorso-lateral stripe, and a robust body with coarse scales. It inhabits a variety of environments, including rocky shores, gardens, and urban areas, and its population is currently listed as endangered due to invasive snake species.
Ablepharus
Ablepharus, commonly known as snake-eyed skinks, are small lizards distinguished by fused eyelids that prevent blinking, similar to snakes. They inhabit dry fields, hills, and rocky areas, often concealed within leaf litter. These skinks possess shiny, bronze scales and a characteristic dark stripe along their sides, feeding primarily on small insects and mollusks.