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Wing damage affects flight kinematics but not flower tracking performance in hummingbird hawkmoths

Kihlström, Klara ; Aiello, Brett ; Warrant, Eric LU orcid ; Sponberg, Simon and Stöckl, Anna LU (2021) In The Journal of experimental biology 224.
Abstract

Wing integrity is crucial to the many insect species that spend distinct portions of their life in flight. How insects cope with the consequences of wing damage is therefore a central question when studying how robust flight performance is possible with such fragile chitinous wings. It has been shown in a variety of insect species that the loss in lift-force production resulting from wing damage is generally compensated by an increase in wing beat frequency rather than amplitude. The consequences of wing damage for flight performance, however, are less well understood, and vary considerably between species and behavioural tasks. One hypothesis reconciling the varying results is that wing damage might affect fast flight manoeuvres with... (More)

Wing integrity is crucial to the many insect species that spend distinct portions of their life in flight. How insects cope with the consequences of wing damage is therefore a central question when studying how robust flight performance is possible with such fragile chitinous wings. It has been shown in a variety of insect species that the loss in lift-force production resulting from wing damage is generally compensated by an increase in wing beat frequency rather than amplitude. The consequences of wing damage for flight performance, however, are less well understood, and vary considerably between species and behavioural tasks. One hypothesis reconciling the varying results is that wing damage might affect fast flight manoeuvres with high acceleration, but not slower ones. To test this hypothesis, we investigated the effect of wing damage on the manoeuvrability of hummingbird hawkmoths (Macroglossum stellatarum) tracking a motorised flower. This assay allowed us to sample a range of movements at different temporal frequencies, and thus assess whether wing damage affected faster or slower flight manoeuvres. We show that hummingbird hawkmoths compensate for the loss in lift force mainly by increasing wing beat amplitude, yet with a significant contribution of wing beat frequency. We did not observe any effects of wing damage on flight manoeuvrability at either high or low temporal frequencies.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Flight control, Flower tracking, Insect, Macroglossum stellatarum, Wing damage
in
The Journal of experimental biology
volume
224
article number
jeb.236240
publisher
The Company of Biologists Ltd
external identifiers
  • pmid:33504584
  • scopus:85102394366
ISSN
1477-9145
DOI
10.1242/jeb.236240
language
English
LU publication?
yes
id
5021c56d-5f4a-49e2-9c1c-5e0eafbca6d0
date added to LUP
2021-03-25 14:31:21
date last changed
2024-04-04 02:13:47
@article{5021c56d-5f4a-49e2-9c1c-5e0eafbca6d0,
  abstract     = {{<p>Wing integrity is crucial to the many insect species that spend distinct portions of their life in flight. How insects cope with the consequences of wing damage is therefore a central question when studying how robust flight performance is possible with such fragile chitinous wings. It has been shown in a variety of insect species that the loss in lift-force production resulting from wing damage is generally compensated by an increase in wing beat frequency rather than amplitude. The consequences of wing damage for flight performance, however, are less well understood, and vary considerably between species and behavioural tasks. One hypothesis reconciling the varying results is that wing damage might affect fast flight manoeuvres with high acceleration, but not slower ones. To test this hypothesis, we investigated the effect of wing damage on the manoeuvrability of hummingbird hawkmoths (Macroglossum stellatarum) tracking a motorised flower. This assay allowed us to sample a range of movements at different temporal frequencies, and thus assess whether wing damage affected faster or slower flight manoeuvres. We show that hummingbird hawkmoths compensate for the loss in lift force mainly by increasing wing beat amplitude, yet with a significant contribution of wing beat frequency. We did not observe any effects of wing damage on flight manoeuvrability at either high or low temporal frequencies.</p>}},
  author       = {{Kihlström, Klara and Aiello, Brett and Warrant, Eric and Sponberg, Simon and Stöckl, Anna}},
  issn         = {{1477-9145}},
  keywords     = {{Flight control; Flower tracking; Insect; Macroglossum stellatarum; Wing damage}},
  language     = {{eng}},
  publisher    = {{The Company of Biologists Ltd}},
  series       = {{The Journal of experimental biology}},
  title        = {{Wing damage affects flight kinematics but not flower tracking performance in hummingbird hawkmoths}},
  url          = {{http://dx.doi.org/10.1242/jeb.236240}},
  doi          = {{10.1242/jeb.236240}},
  volume       = {{224}},
  year         = {{2021}},
}