Food profitability affects intranidal recruitment behaviour in the stingless bee Nannotrigona testaceicornis Veronika M. Schmidt, Michael Hrncir, Dirk Louis P. Schorkopf, Sidnei Mateus, Ronaldo Zucchi and Friedrich G. BarthApidologie, 39 2 (2008) 260-272DOI: https://doi.org/10.1051/apido:2008004