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Article: Robustness of self-organised systems to changes in behaviour: An example from real and simulated self-organised snail aggregations

TitleRobustness of self-organised systems to changes in behaviour: An example from real and simulated self-organised snail aggregations
Authors
Issue Date2011
PublisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.action
Citation
Plos One, 2011, v. 6 n. 7 How to Cite?
AbstractGroup or population level self-organised systems comprise many individuals displaying group-level emergent properties. Current theory indicates that individual-level behaviours have an effect on the final group-level behaviour; that is, self-organised systems are sensitive to small changes in individual behaviour. Here we examine a self-organised behaviour in relation to environmentally-driven individual-level changes in behaviour, using both natural systems and computer simulations. We demonstrate that aggregations of intertidal snails slightly decrease in size when, owing to hotter and more desiccating conditions, individuals forage for shorter periods - a seemingly non-adaptive behaviour for the snails since aggregation reduces desiccation stress. This decrease, however, only occurs in simple experimental systems (and simulations of these systems). When studied in their natural and more complex environment, and simulations of such an environment, using the same reduced foraging time, no difference in aggregation behaviour was found between hot and cool days. These results give an indication of how robust self-organised systems are to changes in individual-level behaviour. The complexity of the natural environment and the interactions of individuals with this environment, therefore, can result in self-organised systems being more resilient to individual-level changes than previously assumed. © 2011 Stafford et al.
Persistent Identifierhttp://hdl.handle.net/10722/138031
ISSN
2015 Impact Factor: 3.057
2015 SCImago Journal Rankings: 1.395
PubMed Central ID
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorStafford, Ren_HK
dc.contributor.authorWilliams, GAen_HK
dc.contributor.authorDavies, MSen_HK
dc.date.accessioned2011-08-26T14:38:52Z-
dc.date.available2011-08-26T14:38:52Z-
dc.date.issued2011en_HK
dc.identifier.citationPlos One, 2011, v. 6 n. 7en_HK
dc.identifier.issn1932-6203en_HK
dc.identifier.urihttp://hdl.handle.net/10722/138031-
dc.description.abstractGroup or population level self-organised systems comprise many individuals displaying group-level emergent properties. Current theory indicates that individual-level behaviours have an effect on the final group-level behaviour; that is, self-organised systems are sensitive to small changes in individual behaviour. Here we examine a self-organised behaviour in relation to environmentally-driven individual-level changes in behaviour, using both natural systems and computer simulations. We demonstrate that aggregations of intertidal snails slightly decrease in size when, owing to hotter and more desiccating conditions, individuals forage for shorter periods - a seemingly non-adaptive behaviour for the snails since aggregation reduces desiccation stress. This decrease, however, only occurs in simple experimental systems (and simulations of these systems). When studied in their natural and more complex environment, and simulations of such an environment, using the same reduced foraging time, no difference in aggregation behaviour was found between hot and cool days. These results give an indication of how robust self-organised systems are to changes in individual-level behaviour. The complexity of the natural environment and the interactions of individuals with this environment, therefore, can result in self-organised systems being more resilient to individual-level changes than previously assumed. © 2011 Stafford et al.en_HK
dc.languageengen_US
dc.publisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.actionen_HK
dc.relation.ispartofPLoS ONEen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subject.meshAdaptation, Physiological-
dc.subject.meshBehavior, Animal-
dc.subject.meshComputer Simulation-
dc.subject.meshCooperative Behavior-
dc.subject.meshSocial Behavior-
dc.titleRobustness of self-organised systems to changes in behaviour: An example from real and simulated self-organised snail aggregationsen_HK
dc.typeArticleen_HK
dc.identifier.emailWilliams, GA: hrsbwga@hkucc.hku.hken_HK
dc.identifier.authorityWilliams, GA=rp00804en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1371/journal.pone.0022743en_HK
dc.identifier.pmid21829499-
dc.identifier.pmcidPMC3145750-
dc.identifier.scopuseid_2-s2.0-79960876978en_HK
dc.identifier.hkuros190676en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79960876978&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume6en_HK
dc.identifier.issue7en_HK
dc.identifier.spagee22743en_US
dc.identifier.epagee22743en_US
dc.identifier.isiWOS:000293284600038-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridStafford, R=14007374300en_HK
dc.identifier.scopusauthoridWilliams, GA=7406082821en_HK
dc.identifier.scopusauthoridDavies, MS=35121268800en_HK

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