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from Denise S.
I’ve often wondered how mason bees, both in the wild and in provided nesting tubes, get enough air to breathe as they develop.  The chambers are divided by mud that even pollen mites can’t get through, and are surrounded by wood or thick cardboard.  Where does their oxygen come from?

On Jul 21, 2012, at 6:01 PM, Margriet Dogterom wrote:

When bees hibernate, their metabolism slows down and they need very little air.  I presume, there is always some air transfer amongst the mud particles.
Thank you so much for your prompt reply, Dr. Dogterom. 
Denise.

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