Reference citation: Philipp M, Böcher J, Siegismund HR, Nielsen LR (2006) Ecography 29:531-540. (Philipp, M., Böcher, J., Siegismund, H. R. and Nielsen, L. R. 2006. Structure of a plant-pollinator network on a pahoehoe lava desert of the Galápagos Islands. – Ecography 29: 531– 40.)
