Geoff, i haven't read the following, which apparently support the
photoperiodism hypothesis.
CHEREDNIKOV, A. V. (1966) [Preparation of bees for wintering and
significance of fat-
body for their activity.] Bdzhil'nitstvo 2: 18-23 In Ukrainian 721/68
CHEREDNIKOV, A. V.(1967) [Photoperiodism in honeybees Apis mellifera L.
(Hymenoptera, Apidae)].
Ent. Obozr: 46(1): 60-67 In Russian
--
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com
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