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2015 ; 5
(ä): 15002
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Energy saving strategies of honeybees in dipping nectar
#MMPMID26446300
Wu J
; Yang H
; Yan S
Sci Rep
2015[Oct]; 5
(ä): 15002
PMID26446300
show ga
The honeybee's drinking process has generally been simplified because of its high
speed and small scale. In this study, we clearly observed the drinking cycle of
the Italian honeybee using a specially designed high-speed camera system. We
analysed the pattern of glossal hair erection and the movement kinematics of the
protracting tongue (glossa). Results showed that the honeybee used two special
protraction strategies to save energy. First, the glossal hairs remain adpressed
until the end of the protraction, which indicates that the hydraulic resistance
is reduced to less than 1/3 of that in the case if the hairs remain erect.
Second, the glossa protracts with a specific velocity profile and we
quantitatively demonstrated that this moving strategy helps reduce the total
energy needed for protraction compared with the typical form of protraction with
constant acceleration and deceleration. These findings suggest effective methods
to optimise the control policies employed by next-generation microfluidic pumps.