, Volume 19, Issue 8, pp 412-413

Untersuchungen über Bildung und Weitergabe von Drüsensekreten beiFormica (Hymenopt. Formicidae) mit Hilfe der Radioisotopenmethode

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Marking experiments with the tracer isotope P32 had the result that food-secretion of ants is mainly formed in the pharyngeal gland, then reaches the crop through the exit channel of the gland, where it is stored and released again, on regurgitation-stimuli, to ♀ and ♂ and larvae as well as workers.