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J Exp Biol


Title:Wings as impellers: honey bees co-opt flight system to induce nest ventilation and disperse pheromones
Author(s):Peters JM; Gravish N; Combes SA;
Address:"OEB, Harvard University, Cambridge, MA 02138, USA jcbptrs@gmail.com. OEB, Harvard University, Cambridge, MA 02138, USA. SEAS, Harvard University, Cambridge, MA 02138, USA. NPB, University of California, Davis, CA 95616, USA"
Journal Title:J Exp Biol
Year:2017
Volume:20170412
Issue:Pt 12
Page Number:2203 - 2209
DOI: 10.1242/jeb.149476
ISSN/ISBN:1477-9145 (Electronic) 0022-0949 (Linking)
Abstract:"Honey bees (Apis mellifera) are remarkable fliers that regularly carry heavy loads of nectar and pollen, supported by a flight system - the wings, thorax and flight muscles - that one might assume is optimized for aerial locomotion. However, honey bees also use this system to perform other crucial tasks that are unrelated to flight. When ventilating the nest, bees grip the surface of the comb or nest entrance and fan their wings to drive airflow through the nest, and a similar wing-fanning behavior is used to disperse volatile pheromones from the Nasonov gland. In order to understand how the physical demands of these impeller-like behaviors differ from those of flight, we quantified the flapping kinematics and compared the frequency, amplitude and stroke plane angle during these non-flight behaviors with values reported for hovering honey bees. We also used a particle-based flow visualization technique to determine the direction and speed of airflow generated by a bee performing Nasonov scenting behavior. We found that ventilatory fanning behavior is kinematically distinct from both flight and scenting behavior. Both impeller-like behaviors drive flow parallel to the surface to which the bees are clinging, at typical speeds of just under 1 m s(-1) We observed that the wings of fanning and scenting bees frequently contact the ground during the ventral stroke reversal, which may lead to wing wear. Finally, we observed that bees performing Nasonov scenting behavior sometimes display 'clap-and-fling' motions, in which the wings contact each other during the dorsal stroke reversal and fling apart at the start of the downstroke. We conclude that the wings and flight motor of honey bees comprise a multifunctional system, which may be subject to competing selective pressures because of its frequent use as both a propeller and an impeller"
Keywords:"Air Movements Animals Bees/*physiology Biomechanical Phenomena *Flight, Animal *Nesting Behavior Pheromones/chemistry Ventilation Wings, Animal/*physiology Apis mellifera Fanning behavior Flight biomechanics Nasonov scenting Thermoregulation;"
Notes:"MedlinePeters, Jacob M Gravish, Nick Combes, Stacey A eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2017/04/14 J Exp Biol. 2017 Jun 15; 220(Pt 12):2203-2209. doi: 10.1242/jeb.149476. Epub 2017 Apr 12"

 
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Citation: El-Sayed AM 2024. The Pherobase: Database of Pheromones and Semiochemicals. <http://www.pherobase.com>.
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