Efficiency and robustness in ant networks of galleries C. Buhl, J. Gautrais, R. V. Solé, P. Kuntz, S. Valverde, J. L. Deneubourg and G. Theraulaz Eur. Phys. J. B, 42 1 (2004) 123-129 Published online: 26 November 2004 DOI: 10.1140/epjb/e2004-00364-9