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Informed Discussion of Beekeeping Issues and Bee Biology

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Subject:
From:
Jorg Kewisch <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Fri, 8 Dec 2017 13:49:57 -0500
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On 12/08/2017 08:33 AM, randy oliver wrote:

> The most puzzling to me is the cue for midwinter initiation of
> broodrearing, during the period when day length is at its shortest (or
> absent), photoperiod change is minimal (or absent), temperature is
> consistently low, and there is no incoming pollen or nectar.
> 

Maybe they don't measure the length of the day but look at the location
at the horizon where the sun rises.

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