Many lizards use femoral gland secretions in intraspecific communication. Although there is
a consistent interspecific variation in chemical composition of secretions, considerable
variation is also often found between populations, which may affect conspecifc recognition
and lead to speciation processes. Balearic lizards (Podarcis lilfordi) are currently distributed
only in several isolated islets offshore of the main islands with different environmental
conditions (vegetation, diet, density of population, etc). Also, there is a high genetic …