| Schorkopf, D.L.P., Jarau, S., Francke, W., Twele, R., Zucchi, R., Hrncir, M., Schmidt, V.M., Ayasse, M., and Barth, F.G. 2007. Spitting out information: Trigona bees deposit saliva to signal resource locations. Proc. R. Soc. B. 274:895-898. |
| |
| Francke, W., Lübke, G., Schröder, W., Reckziegel, A., Imperatriz-Fonseca, V., Kleinert, A., Engels, E., Hartfelder, K., Radtke, R., and Engels, W. 2000a. Identification of oxygen containing volatiles in cephalic secretions of workers of Brazilian stingless bees. J. Braz. Chem. Soc. 11:562-571. |
| |
| Kerr, W.E., Blum, M., and Fales, H.M. 1981. Communication of food source between workers of Trigona (Trigona) spinipes. Rev. Bras. Biol. 41:619-623. |
| |