Tragedy of the commons in Melipona bees revisited
Cite this dataset
Caliari Oliveira, Ricardo et al. (2021). Tragedy of the commons in Melipona bees revisited [Dataset]. Dryad. https://doi.org/10.5061/dryad.3bk3j9kkk
Melipona stingless bees display a paradoxical overproduction of queens, which are later eliminated by nestmate workers. Mechanistically, it was suggested that the monoterpenoid geraniol deposited into newly provisioned cells by adult bees would cause larvae to develop into queens in Melipona beecheii. This system could be evolutionarily stable if many of these new queens would leave the nest and parasitize other genetically unrelated colonies nearby, as was shown to occur in a congeneric species. Here, we use microsatellite markers to test whether queen overproduction could be a strategy by which adult workers control the caste fate of the developing larvae to export copies of their own genes to the rest of the population via queen parasitism in M. beecheii. In addition, we re-examined whether artificially increasing the levels of geraniol indeed caused larvae to develop as queens rather than workers. Contrary to our prediction, we found no evidence for queen parasitism in M. beecheii and observed no effect of geraniol on the rearing of new queens. Together, these results support the original “tragedy of the commons” hypothesis for queen overproduction in Melipona bees, where individual larvae selfishly bias their development towards the queen pathway according to their best evolutionary interests.
Research Foundation - Flanders, Award: 12R9619N
Research Foundation - Flanders, Award: 1502119N
Consejo Nacional de Humanidades, Ciencias y Tecnologías, Award: CAR-21861
Secretariat of Agriculture, Livestock, Rural Development, Fisheries and Food, Award: 291333