Occurrence and ecological aspects of the two-fingered skink Chalcides mauritanicus in the chafarinas islands in North Africa

José Martín, Roberto García-Roa, Jesús Ortega, Pilar López, Ana Pérez-Cembranos, Alicia León, Luis V. García, Valentín Pérez-Mellado

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The two-fingered skink, Chalcides mauritanicus, 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 C. mauritanicus on the Chafarinas Islands (NWAfrica). 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 C. mauritanicus consisted of small beetle larvae, which were consumed in higher proportions than expected by their availability.

Original languageEnglish
Pages (from-to)67-79
Number of pages13
JournalAfrican Journal of Herpetology
Issue number1
StatePublished - 1 Jun 2015
Externally publishedYes


  • Chalcides
  • Diet
  • Habitat selection
  • Morphology
  • North Africa
  • Skinks

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology


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