Intermittent motion in desert locusts: behavioural complexity in simple environments.

Animals can exhibit complex movement patterns that may be the result of interactions with their environment or may be directly the mechanism by which their behaviour is governed. In order to understand the drivers of these patterns we examine the movement behaviour of individual desert locusts in a...

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Autores principales:	Sepideh Bazazi, Frederic Bartumeus, Joseph J Hale, Iain D Couzin
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/99224f4d2a4f4e53a63ad6ea564e2876
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spelling	oai:doaj.org-article:99224f4d2a4f4e53a63ad6ea564e28762021-11-18T05:51:21ZIntermittent motion in desert locusts: behavioural complexity in simple environments.1553-734X1553-735810.1371/journal.pcbi.1002498https://doaj.org/article/99224f4d2a4f4e53a63ad6ea564e28762012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22589707/pdf/?tool=EBIhttps://doaj.org/toc/1553-734Xhttps://doaj.org/toc/1553-7358Animals can exhibit complex movement patterns that may be the result of interactions with their environment or may be directly the mechanism by which their behaviour is governed. In order to understand the drivers of these patterns we examine the movement behaviour of individual desert locusts in a homogenous experimental arena with minimal external cues. Locust motion is intermittent and we reveal that as pauses become longer, the probability that a locust changes direction from its previous direction of travel increases. Long pauses (of greater than 100 s) can be considered reorientation bouts, while shorter pauses (of less than 6 s) appear to act as periods of resting between displacements. We observe power-law behaviour in the distribution of move and pause lengths of over 1.5 orders of magnitude. While Lévy features do exist, locusts' movement patterns are more fully described by considering moves, pauses and turns in combination. Further analysis reveals that these combinations give rise to two behavioural modes that are organized in time: local search behaviour (long exploratory pauses with short moves) and relocation behaviour (long displacement moves with shorter resting pauses). These findings offer a new perspective on how complex animal movement patterns emerge in nature.Sepideh BazaziFrederic BartumeusJoseph J HaleIain D CouzinPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Computational Biology, Vol 8, Iss 5, p e1002498 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5
spellingShingle	Biology (General) QH301-705.5 Sepideh Bazazi Frederic Bartumeus Joseph J Hale Iain D Couzin Intermittent motion in desert locusts: behavioural complexity in simple environments.
description	Animals can exhibit complex movement patterns that may be the result of interactions with their environment or may be directly the mechanism by which their behaviour is governed. In order to understand the drivers of these patterns we examine the movement behaviour of individual desert locusts in a homogenous experimental arena with minimal external cues. Locust motion is intermittent and we reveal that as pauses become longer, the probability that a locust changes direction from its previous direction of travel increases. Long pauses (of greater than 100 s) can be considered reorientation bouts, while shorter pauses (of less than 6 s) appear to act as periods of resting between displacements. We observe power-law behaviour in the distribution of move and pause lengths of over 1.5 orders of magnitude. While Lévy features do exist, locusts' movement patterns are more fully described by considering moves, pauses and turns in combination. Further analysis reveals that these combinations give rise to two behavioural modes that are organized in time: local search behaviour (long exploratory pauses with short moves) and relocation behaviour (long displacement moves with shorter resting pauses). These findings offer a new perspective on how complex animal movement patterns emerge in nature.
format	article
author	Sepideh Bazazi Frederic Bartumeus Joseph J Hale Iain D Couzin
author_facet	Sepideh Bazazi Frederic Bartumeus Joseph J Hale Iain D Couzin
author_sort	Sepideh Bazazi
title	Intermittent motion in desert locusts: behavioural complexity in simple environments.
title_short	Intermittent motion in desert locusts: behavioural complexity in simple environments.
title_full	Intermittent motion in desert locusts: behavioural complexity in simple environments.
title_fullStr	Intermittent motion in desert locusts: behavioural complexity in simple environments.
title_full_unstemmed	Intermittent motion in desert locusts: behavioural complexity in simple environments.
title_sort	intermittent motion in desert locusts: behavioural complexity in simple environments.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/99224f4d2a4f4e53a63ad6ea564e2876
work_keys_str_mv	AT sepidehbazazi intermittentmotionindesertlocustsbehaviouralcomplexityinsimpleenvironments AT fredericbartumeus intermittentmotionindesertlocustsbehaviouralcomplexityinsimpleenvironments AT josephjhale intermittentmotionindesertlocustsbehaviouralcomplexityinsimpleenvironments AT iaindcouzin intermittentmotionindesertlocustsbehaviouralcomplexityinsimpleenvironments
_version_	1718424745707307008

Intermittent motion in desert locusts: behavioural complexity in simple environments.

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