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Article: Cheats in a cooperative behaviour? Behavioural differences and breakdown of cooperative behaviour in aggregating, intertidal littorinids (Mollusca)

TitleCheats in a cooperative behaviour? Behavioural differences and breakdown of cooperative behaviour in aggregating, intertidal littorinids (Mollusca)
Authors
KeywordsAggregation
Cheat
Cooperation
Echinolittorina
Gastropoda
Intertidal
Rocky shore
Issue Date2012
Citation
Marine Ecology, 2012, v. 33 n. 1, p. 66-74 How to Cite?
AbstractCooperative behaviours result in the evolution of cheats: individuals that benefit from the behaviour without sharing the costs required to generate the behaviour. Normally the proportion of cheats is small, as large numbers of cheats will result in the breakdown of the behaviour. Using empirical and simulation-derived results we demonstrate a cooperative behaviour (aggregation between two species of intertidal snails that provides a benefit by reducing desiccation stress) that shows many characteristics similar to those of a cooperative system with cheats present. In this system, the high rocky shore littorinid Echinolittorina malaccana forages for longer after high water than Echinolittorina radiata, which stops foraging and begins to form aggregations earlier. Nevertheless, E. malaccana, the 'cheat' in this system, still occupies an equal proportion of the most beneficial places in aggregations. Computer simulations demonstrate that up to 65% of individual snails can show the behaviour of E. malaccana before the breakdown of this aggregation behaviour begins to occur through aggregations becoming smaller, and hence less effective against desiccation. The high proportion of 'cheats' possible in this cooperative behaviour implies that different selective pressures may act on individuals of different species in multi-species cooperative behaviours to those acting on individuals engaging in single species cooperative behaviours. Social symbiosis appears to be occurring between the species, but it appears that both mutualistic and parasitic symbioses are occurring. © 2011 Blackwell Verlag GmbH.
Persistent Identifierhttp://hdl.handle.net/10722/147033
ISSN
2015 Impact Factor: 1.138
2015 SCImago Journal Rankings: 0.735
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorStafford, Ren_HK
dc.contributor.authorDavies, MSen_HK
dc.contributor.authorWilliams, GAen_HK
dc.date.accessioned2012-05-23T05:54:12Z-
dc.date.available2012-05-23T05:54:12Z-
dc.date.issued2012en_HK
dc.identifier.citationMarine Ecology, 2012, v. 33 n. 1, p. 66-74en_HK
dc.identifier.issn0173-9565en_HK
dc.identifier.urihttp://hdl.handle.net/10722/147033-
dc.description.abstractCooperative behaviours result in the evolution of cheats: individuals that benefit from the behaviour without sharing the costs required to generate the behaviour. Normally the proportion of cheats is small, as large numbers of cheats will result in the breakdown of the behaviour. Using empirical and simulation-derived results we demonstrate a cooperative behaviour (aggregation between two species of intertidal snails that provides a benefit by reducing desiccation stress) that shows many characteristics similar to those of a cooperative system with cheats present. In this system, the high rocky shore littorinid Echinolittorina malaccana forages for longer after high water than Echinolittorina radiata, which stops foraging and begins to form aggregations earlier. Nevertheless, E. malaccana, the 'cheat' in this system, still occupies an equal proportion of the most beneficial places in aggregations. Computer simulations demonstrate that up to 65% of individual snails can show the behaviour of E. malaccana before the breakdown of this aggregation behaviour begins to occur through aggregations becoming smaller, and hence less effective against desiccation. The high proportion of 'cheats' possible in this cooperative behaviour implies that different selective pressures may act on individuals of different species in multi-species cooperative behaviours to those acting on individuals engaging in single species cooperative behaviours. Social symbiosis appears to be occurring between the species, but it appears that both mutualistic and parasitic symbioses are occurring. © 2011 Blackwell Verlag GmbH.en_HK
dc.languageengen_US
dc.relation.ispartofMarine Ecologyen_HK
dc.subjectAggregationen_HK
dc.subjectCheaten_HK
dc.subjectCooperationen_HK
dc.subjectEchinolittorinaen_HK
dc.subjectGastropodaen_HK
dc.subjectIntertidalen_HK
dc.subjectRocky shoreen_HK
dc.titleCheats in a cooperative behaviour? Behavioural differences and breakdown of cooperative behaviour in aggregating, intertidal littorinids (Mollusca)en_HK
dc.typeArticleen_HK
dc.identifier.emailWilliams, GA: hrsbwga@hkucc.hku.hken_HK
dc.identifier.authorityWilliams, GA=rp00804en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1439-0485.2011.00474.xen_HK
dc.identifier.scopuseid_2-s2.0-84855985718en_HK
dc.identifier.hkuros199540en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84855985718&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume33en_HK
dc.identifier.issue1en_HK
dc.identifier.spage66en_HK
dc.identifier.epage74en_HK
dc.identifier.isiWOS:000302950800006-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridStafford, R=14007374300en_HK
dc.identifier.scopusauthoridDavies, MS=35121268800en_HK
dc.identifier.scopusauthoridWilliams, GA=7406082821en_HK

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