@article{article4188b2fb,
title   = {Soldiers in a stingless bee: work rate and task repertoire suggest they are an elite force},
author = {Hammel, Benedikt and Vollet-Neto, Ayrton and Menezes, Cristiano and Nascimento, Fábio Santos do and Engels, Wolf and Grüter, Christoph},
year = {2016},
doi = {10.1086/684192},
journal   = {The American Naturalist}
}