Behavioural lateralization in Budgerigars varies with the task and the individual.

Handedness/footedness and side biases are a well-known phenomenon in many animals, including humans. However, these so-called biases have mostly been studied at the population level--individual biases have received less attention, especially with regard to consistency over different tasks. Here we i...

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Main Authors: Ingo Schiffner, Mandyam V Srinivasan
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3855779?pdf=render
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author Ingo Schiffner
Mandyam V Srinivasan
author_facet Ingo Schiffner
Mandyam V Srinivasan
author_sort Ingo Schiffner
collection DOAJ
description Handedness/footedness and side biases are a well-known phenomenon in many animals, including humans. However, these so-called biases have mostly been studied at the population level--individual biases have received less attention, especially with regard to consistency over different tasks. Here we investigate behavioral lateralization in 12 male Budgerigars, Melopsittacus undulatus, a social parrot inhabiting the Australian bushlands. We performed 5 types of experiments to investigate lateralization, in tasks that involved climbing onto a perch, or landing on perches arranged in various configurations. The birds displayed highly significant, individually varying biases. The bias displayed by any particular individual varied with the task, in strength as well as polarity. Analysis of the data revealed that the preferred foot used for climbing did not coincide with the foot that was used while landing. Thus, landing choices are probably not determined by foot bias. Furthermore, these individual preferences were overridden completely when a bird had to perform a task simultaneously with another bird.
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spelling doaj.art-21172eb8c14e4d28bc2dfb68059a05622022-12-22T01:13:08ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-01812e8267010.1371/journal.pone.0082670Behavioural lateralization in Budgerigars varies with the task and the individual.Ingo SchiffnerMandyam V SrinivasanHandedness/footedness and side biases are a well-known phenomenon in many animals, including humans. However, these so-called biases have mostly been studied at the population level--individual biases have received less attention, especially with regard to consistency over different tasks. Here we investigate behavioral lateralization in 12 male Budgerigars, Melopsittacus undulatus, a social parrot inhabiting the Australian bushlands. We performed 5 types of experiments to investigate lateralization, in tasks that involved climbing onto a perch, or landing on perches arranged in various configurations. The birds displayed highly significant, individually varying biases. The bias displayed by any particular individual varied with the task, in strength as well as polarity. Analysis of the data revealed that the preferred foot used for climbing did not coincide with the foot that was used while landing. Thus, landing choices are probably not determined by foot bias. Furthermore, these individual preferences were overridden completely when a bird had to perform a task simultaneously with another bird.http://europepmc.org/articles/PMC3855779?pdf=render
spellingShingle Ingo Schiffner
Mandyam V Srinivasan
Behavioural lateralization in Budgerigars varies with the task and the individual.
PLoS ONE
title Behavioural lateralization in Budgerigars varies with the task and the individual.
title_full Behavioural lateralization in Budgerigars varies with the task and the individual.
title_fullStr Behavioural lateralization in Budgerigars varies with the task and the individual.
title_full_unstemmed Behavioural lateralization in Budgerigars varies with the task and the individual.
title_short Behavioural lateralization in Budgerigars varies with the task and the individual.
title_sort behavioural lateralization in budgerigars varies with the task and the individual
url http://europepmc.org/articles/PMC3855779?pdf=render
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