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Accelerated landing in a stingless bee and its unexpected benefits for traffic congestion

Tichit, Pierre LU orcid ; Alves-Dos-Santos, Isabel ; Dacke, Marie LU and Baird, Emily LU (2020) In Royal Society of London. Proceedings B. Biological Sciences 287(1921).
Abstract

To land, flying animals must simultaneously reduce speed and control their path to the target. While the control of approach speed has been studied in many different animals, little is known about the effect of target size on landing, particularly for small targets that require precise trajectory control. To begin to explore this, we recorded the stingless bees Scaptotrigona depilis landing on their natural hive entrance-a narrow wax tube built by the bees themselves. Rather than decelerating before touchdown as most animals do, S. depilis accelerates in preparation for its high precision landings on the narrow tube of wax. A simulation of traffic at the hive suggests that this counterintuitive landing strategy could confer a collective... (More)

To land, flying animals must simultaneously reduce speed and control their path to the target. While the control of approach speed has been studied in many different animals, little is known about the effect of target size on landing, particularly for small targets that require precise trajectory control. To begin to explore this, we recorded the stingless bees Scaptotrigona depilis landing on their natural hive entrance-a narrow wax tube built by the bees themselves. Rather than decelerating before touchdown as most animals do, S. depilis accelerates in preparation for its high precision landings on the narrow tube of wax. A simulation of traffic at the hive suggests that this counterintuitive landing strategy could confer a collective advantage to the colony by minimizing the risk of mid-air collisions and thus of traffic congestion. If the simulated size of the hive entrance increases and if traffic intensity decreases relative to the measured real-world values, 'accelerated landing' ceases to provide a clear benefit, suggesting that it is only a useful strategy when target cross-section is small and landing traffic is high. We discuss this strategy in the context of S. depilis' ecology and propose that it is an adaptive behaviour that benefits foraging and nest defence.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
flight control, landing, leg extension, mid-air collisions, stingless bees, traffic
in
Royal Society of London. Proceedings B. Biological Sciences
volume
287
issue
1921
publisher
Royal Society Publishing
external identifiers
  • pmid:32070252
  • scopus:85079600821
ISSN
1471-2954
DOI
10.1098/rspb.2019.2720
language
English
LU publication?
yes
id
96d485bd-a386-41ac-8e69-54edd06340ef
date added to LUP
2020-03-03 15:02:35
date last changed
2024-03-04 14:21:47
@article{96d485bd-a386-41ac-8e69-54edd06340ef,
  abstract     = {{<p>To land, flying animals must simultaneously reduce speed and control their path to the target. While the control of approach speed has been studied in many different animals, little is known about the effect of target size on landing, particularly for small targets that require precise trajectory control. To begin to explore this, we recorded the stingless bees Scaptotrigona depilis landing on their natural hive entrance-a narrow wax tube built by the bees themselves. Rather than decelerating before touchdown as most animals do, S. depilis accelerates in preparation for its high precision landings on the narrow tube of wax. A simulation of traffic at the hive suggests that this counterintuitive landing strategy could confer a collective advantage to the colony by minimizing the risk of mid-air collisions and thus of traffic congestion. If the simulated size of the hive entrance increases and if traffic intensity decreases relative to the measured real-world values, 'accelerated landing' ceases to provide a clear benefit, suggesting that it is only a useful strategy when target cross-section is small and landing traffic is high. We discuss this strategy in the context of S. depilis' ecology and propose that it is an adaptive behaviour that benefits foraging and nest defence.</p>}},
  author       = {{Tichit, Pierre and Alves-Dos-Santos, Isabel and Dacke, Marie and Baird, Emily}},
  issn         = {{1471-2954}},
  keywords     = {{flight control; landing; leg extension; mid-air collisions; stingless bees; traffic}},
  language     = {{eng}},
  number       = {{1921}},
  publisher    = {{Royal Society Publishing}},
  series       = {{Royal Society of London. Proceedings B. Biological Sciences}},
  title        = {{Accelerated landing in a stingless bee and its unexpected benefits for traffic congestion}},
  url          = {{http://dx.doi.org/10.1098/rspb.2019.2720}},
  doi          = {{10.1098/rspb.2019.2720}},
  volume       = {{287}},
  year         = {{2020}},
}