How to join a wave: decision-making processes in shimmering behavior of Giant honeybees (Apis dorsata).

Shimmering is a collective defence behaviour in Giant honeybees (Apis dorsata) whereby individual bees flip their abdomen upwards, producing Mexican wave-like patterns on the nest surface. Bucket bridging has been used to explain the spread of information in a chain of members including three testab...

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Autores principales:	Gerald Kastberger, Frank Weihmann, Thomas Hoetzl, Sara E Weiss, Michael Maurer, Ilse Kranner
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/56d5ce0978da4ffaa685132365e893a8
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spelling	oai:doaj.org-article:56d5ce0978da4ffaa685132365e893a82021-11-18T07:19:23ZHow to join a wave: decision-making processes in shimmering behavior of Giant honeybees (Apis dorsata).1932-620310.1371/journal.pone.0036736https://doaj.org/article/56d5ce0978da4ffaa685132365e893a82012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22662123/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Shimmering is a collective defence behaviour in Giant honeybees (Apis dorsata) whereby individual bees flip their abdomen upwards, producing Mexican wave-like patterns on the nest surface. Bucket bridging has been used to explain the spread of information in a chain of members including three testable concepts: first, linearity assumes that individual "agent bees" that participate in the wave will be affected preferentially from the side of wave origin. The directed-trigger hypothesis addresses the coincidence of the individual property of trigger direction with the collective property of wave direction. Second, continuity describes the transfer of information without being stopped, delayed or re-routed. The active-neighbours hypothesis assumes coincidence between the direction of the majority of shimmering-active neighbours and the trigger direction of the agents. Third, the graduality hypothesis refers to the interaction between an agent and her active neighbours, assuming a proportional relationship in the strength of abdomen flipping of the agent and her previously active neighbours. Shimmering waves provoked by dummy wasps were recorded with high-resolution video cameras. Individual bees were identified by 3D-image analysis, and their strength of abdominal flipping was assessed by pixel-based luminance changes in sequential frames. For each agent, the directedness of wave propagation was based on wave direction, trigger direction, and the direction of the majority of shimmering-active neighbours. The data supported the bucket bridging hypothesis, but only for a small proportion of agents: linearity was confirmed for 2.5%, continuity for 11.3% and graduality for 0.4% of surface bees (but in 2.6% of those agents with high wave-strength levels). The complimentary part of 90% of surface bees did not conform to bucket bridging. This fuzziness is discussed in terms of self-organisation and evolutionary adaptedness in Giant honeybee colonies to respond to rapidly changing threats such as predatory wasps scanning in front of the nest.Gerald KastbergerFrank WeihmannThomas HoetzlSara E WeissMichael MaurerIlse KrannerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 5, p e36736 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gerald Kastberger Frank Weihmann Thomas Hoetzl Sara E Weiss Michael Maurer Ilse Kranner How to join a wave: decision-making processes in shimmering behavior of Giant honeybees (Apis dorsata).
description	Shimmering is a collective defence behaviour in Giant honeybees (Apis dorsata) whereby individual bees flip their abdomen upwards, producing Mexican wave-like patterns on the nest surface. Bucket bridging has been used to explain the spread of information in a chain of members including three testable concepts: first, linearity assumes that individual "agent bees" that participate in the wave will be affected preferentially from the side of wave origin. The directed-trigger hypothesis addresses the coincidence of the individual property of trigger direction with the collective property of wave direction. Second, continuity describes the transfer of information without being stopped, delayed or re-routed. The active-neighbours hypothesis assumes coincidence between the direction of the majority of shimmering-active neighbours and the trigger direction of the agents. Third, the graduality hypothesis refers to the interaction between an agent and her active neighbours, assuming a proportional relationship in the strength of abdomen flipping of the agent and her previously active neighbours. Shimmering waves provoked by dummy wasps were recorded with high-resolution video cameras. Individual bees were identified by 3D-image analysis, and their strength of abdominal flipping was assessed by pixel-based luminance changes in sequential frames. For each agent, the directedness of wave propagation was based on wave direction, trigger direction, and the direction of the majority of shimmering-active neighbours. The data supported the bucket bridging hypothesis, but only for a small proportion of agents: linearity was confirmed for 2.5%, continuity for 11.3% and graduality for 0.4% of surface bees (but in 2.6% of those agents with high wave-strength levels). The complimentary part of 90% of surface bees did not conform to bucket bridging. This fuzziness is discussed in terms of self-organisation and evolutionary adaptedness in Giant honeybee colonies to respond to rapidly changing threats such as predatory wasps scanning in front of the nest.
format	article
author	Gerald Kastberger Frank Weihmann Thomas Hoetzl Sara E Weiss Michael Maurer Ilse Kranner
author_facet	Gerald Kastberger Frank Weihmann Thomas Hoetzl Sara E Weiss Michael Maurer Ilse Kranner
author_sort	Gerald Kastberger
title	How to join a wave: decision-making processes in shimmering behavior of Giant honeybees (Apis dorsata).
title_short	How to join a wave: decision-making processes in shimmering behavior of Giant honeybees (Apis dorsata).
title_full	How to join a wave: decision-making processes in shimmering behavior of Giant honeybees (Apis dorsata).
title_fullStr	How to join a wave: decision-making processes in shimmering behavior of Giant honeybees (Apis dorsata).
title_full_unstemmed	How to join a wave: decision-making processes in shimmering behavior of Giant honeybees (Apis dorsata).
title_sort	how to join a wave: decision-making processes in shimmering behavior of giant honeybees (apis dorsata).
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/56d5ce0978da4ffaa685132365e893a8
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How to join a wave: decision-making processes in shimmering behavior of Giant honeybees (Apis dorsata).

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