Biochemical Systematics and Ecology
The question whether in the communally nesting bees Andrena ferox Sm. and A. jacobi Perkins individuals of different nests, nest patches, and populations differ with respect to Dufour's gland compounds and enzyme patterns was studied. Colonies w ere different in the relative amounts of Dufour's gland compounds in virgin females of A. ferox, but not between females performing nesting activities. In A. jacobi there was a difference between nest patches and two investigated populations. Striking differences in the quality and quantity of Dufour's gland compounds were found between virgin and mated females of A. ferox. In A. ferox 13 and in A. jacobi 28 recognizable enzyme loci did not show any genetic variation. The reasons for differences in Dufour's gland secretions of both investigated Andrena spp. and low levels of electrophoretic variation in hymenopterans are discussed.
Ayasse, Manfred; Leys, Remo; Pamilo, Pekka; and Tengos, Jan, "Kinship in Communally Nesting Andrena (Hymenoptera: Andrenidae) Bees is Indicated by Composition of Dufour's Gland Secretions" (1990). An. Paper 172.
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