Sequestration of plant alkaloids by the sawfly Rhadinoceraea nodicornis: ecological relevance for different life stages and occurrence among related species
(1) CAB International Institute of Biological Control, Chemin des Grillons 1, CH-2800 Delémont, Switzerland;(2) Angewandte Zoologie/Ökologie der Tiere, FU Berlin, Haderslebenerstr. 9, D-12163 Berlin, Germany