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First published online June 27, 2008
Journal of Experimental Biology 211, 2239-2242 (2008)
Published by The Company of Biologists 2008
doi: 10.1242/jeb.016642
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Bumble bees heat up for high quality pollen

Katherine S. Mapalad, Daniel Leu and James C. Nieh*

University of California San Diego, Division of Biological Sciences, Section of Ecology, Behavior and Evolution, 9500 Gilman Drive, La Jolla, CA 92093-0116, USA


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  		Fig. 1. (A) Relationship between forager thoracic temperature (Tth) and ambient air temperature (Tambient) at the feeder and inside the nest for 100% pollen (Tth=Tambient is shown by the broken line). Ambient air temperature corresponds to the feeder or the nest, as appropriate for the Tth measurement. (B) Effect of pollen concentration on {Delta}Tth (calculated using ambient air temperature measured at the feeder or the nest, as appropriate). Open diamonds correspond to {Delta}Tth at the feeder (ambient feeder air temperature, 29.7±1.7°C) and filled circles to nest {Delta}Tth (ambient nest air temperature, 29.1±3.0°C). For clarity, only one tail of the standard deviation error bars is shown. The broken regression line for nest and feeder data combined is shown because there was no significant location. Sample sizes (N) are given at the bottom of the plot.

 

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© The Company of Biologists Ltd 2008