In 2014 DNA analysis estimated that 39.1% of the islands bees were introgressed with DNA from the M Lineage (most likely the Apis mellifera mellifera) and the C Lineage (most likely the Apis mellifera ligustica, Apis mellifera carnica or the Buckfast bee), however the islands of Vulcano and Filicudi, which are conservation areas for the A. m. siciliana showed no signs of introgression, demonstrating their effectiveness at protecting and preserving the subspecies.[4]