Of course, you also have to take into account the time required to find receiver bees, as noted in an earlier message citing Seeley and Tovey (1994), and the fact that multiple unloadings are often required if receiver bees already have partially full crops (Huang and Seeley 2003).
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Seeley, T. D., & TOVEY, C. A. (1994). Why search time to find a food-storer bee accurately indicates the relative rates of nectar collecting and nectar processing in honey bee colonies. Animal Behaviour.
Huang, M. H., & Seeley, T. D. (2003). Multiple unloadings by nectar foragers in honey bees: a matter of information improvement or crop fullness? Insectes Sociaux, 50(4), 330–339. doi:10.1007/s00040-003-0682-4
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From: Sponsler, Douglas B.
Sent: Friday, August 7, 2015 11:21 AM
To: [log in to unmask]
Subject: Re: [BEE-L] Nectar transfer from field bee to house bee
In an artificial setting, Farina and Nuñez (1991) recorded durations of trophallactic exchanges that ranged from roughly 5-13 sec. In an observation hive, Farina and Wainselboim (2001) recorded trophallactic exchanges between foragers and receiver bees lasting roughly 23-26 sec.
Both the size of the nectar load a forager takes and the rate at which she unloads it to a receiver bee respond positively to the reward level of the nectar and proportionally to each other; so, unloading time is held fairly constant with respect to reward level (Farina and Wainselboim 2001).
Doug
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Farina, W. M., & Núñez, J. A. (1991). Trophallaxis in the honeybee, Apis mellifera (L.) as related to the profitability of food sources. Animal Behaviour.
Farina, W. M., & Wainselboim, A. J. (2001). Changes in the thoracic temperature of honeybees while receiving nectar from foragers collecting at different reward rates. Journal of Experimental Biology.
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