Exploring the relationship between flapping behaviour and accelerometer signal during ascending flight, and a new approach to calibration

@article{Walsum2019ExploringTR,
  title={Exploring the relationship between flapping behaviour and accelerometer signal during ascending flight, and a new approach to calibration},
  author={Tessa A. van Walsum and Andrea Perna and Charles M. Bishop and Campbell Murn and Philip M. Collins and Rory P. Wilson and Lewis G. Halsey},
  journal={Ibis},
  year={2019}
}
We understand little about the energetic costs of flight in free‐ranging birds, in part because current techniques for estimating flight energetics in the wild are limited. Accelerometry is known to estimate energy expenditure through body movement in terrestrial animals, once calibrated using a treadmill with chamber respirometry. The flight equivalent, a wind tunnel with mask respirometry, is particularly difficult to instigate, and has not been applied to calibrate accelerometry. We take the… 

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References

SHOWING 1-10 OF 65 REFERENCES

Interpretation of body-mounted accelerometry in flying animals and estimation of biomechanical power

TLDR
An idealized energy fluctuation model of a bird's body undergoing horizontal flapping flight is developed, focusing on the biomechanical power discernible to a body-mounted accelerometer, offering fresh insights into the processes involved in airborne locomotion.

Recording raptor behavior on the wing via accelerometry

Measuring body movements using accelerometry data loggers is a relatively new technique, the full applicability of which has yet to be tested on volant birds. Our study illustrates the potential of

Backward flight in hummingbirds employs unique kinematic adjustments and entails low metabolic cost

TLDR
It is proposed that backward flight behavior in retreat from flowers, together with other anatomical, physiological, morphological and behavioral adaptations, enables hummingbirds to maintain strictly aerial nectarivory.

The power of feeder-mask respirometry as a method for examining hummingbird energetics.

  • K. C. Welch
  • Biology, Environmental Science
    Comparative biochemistry and physiology. Part A, Molecular & integrative physiology
  • 2011

Estimating power curves of flying vertebrates.

  • J. Rayner
  • Engineering
    The Journal of experimental biology
  • 1999
TLDR
The hypothesis that the power curve may not in fact exist, in the sense that the cost of flight may not be perceived by a bird as a continuous smooth function of air speed, is advanced and is considered together with evidence from variation in flight behaviour, wingbeat kinematics and flight gait with speed.

Assessing the development and application of the accelerometry technique for estimating energy expenditure.

The mechanical power requirements of avian flight

TLDR
It is shown that in budgerigars and zebra finches power is modulated with flight speed, resulting in U-shaped power–speed relationship, and measured muscle powers agreed well with a range of powers predicted using an aerodynamic model.

Wing inertia and whole-body acceleration: an analysis of instantaneous aerodynamic force production in cockatiels (Nymphicus hollandicus) flying across a range of speeds

TLDR
Investigating the variation in instantaneous aerodynamic force production during the wingbeat cycle of birds flying across a range of steady speeds found that the inertial power requirements of downstroke were consistent with the assumption that nearly all wing kinetic energy in downstroke was applied to the production of aerodynamic forces and therefore should not be added separately to the overall power cost of flight.

Measurement of flying and diving metabolic rate in wild animals: Review and recommendations.

  • K. Elliott
  • Biology
    Comparative biochemistry and physiology. Part A, Molecular & integrative physiology
  • 2016
...