n African Journal of Herpetology - Occurrence and ecological aspects of the two-fingered skink in the Chafarinas Islands in North Africa

Volume 64, Issue 1
  • ISSN : 2156-4574
  • E-ISSN: 2153-3660
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The two-fingered skink, , is a fossorial species from North Africa, where it has only been found at a few localities on sandy sea shores. Virtually nothing is known about its ecology. For the first time, we report the occurrence of an apparently large and well-preserved population of on the Chafarinas Islands (NW Africa). In addition, we study some aspects of the morphology and ecology (microhabitat, soil and diet selection) of this skink. Adult females were larger than males but had heads of similar size. In this population, we found an equilibrated sex ratio. Adults showed a very high frequency of regenerated tails, suggesting a high predation pressure. Skinks were restricted to a small area of Congreso Island where, far from the sea shore, they selected sandy microhabitats. These microhabitats were characterised by higher cover at the substrate level of bare soil and medium rocks, lower cover of leaf litter and grass, and more sparse subarboreal vegetation than available microhabitats. Soils occupied by skinks had a higher proportion of sand, and a lower proportion of gravel, silt and clay, resulting in a much lower soil compaction than most soils of the island. The bulk of the diet of consisted of small beetle larvae, which were consumed in higher proportions than expected by their availability.

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