Reference
Wiliam Hughes (2005): WIRTH, R., HERZ, H., RYEL, R.J., BEYSCHLAG, W. & HÖLLDOBLER, B. 2003: Herbivory of leaf-cutting ants: A case study of Atta colombica in the tropical rainforest of Panama. - Springer-Verlag, Berlin, 230 pp. – Myrmecological News = Myrmecologische Nachrichten – 007: 60.