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Article: Self-organization of intertidal snails facilitates evolution of aggregation behavior

TitleSelf-organization of intertidal snails facilitates evolution of aggregation behavior
Authors
KeywordsAggregation
Emergence
Evolution
Littorinid snail
Rocky shore
Self-organization
Issue Date2008
PublisherM I T Press. The Journal's web site is located at http://www.mitpressjournals.org/loi/artl
Citation
Artificial Life, 2008, v. 14 n. 4, p. 409-423 How to Cite?
AbstractMany intertidal snails form aggregations during emersion to minimize desiccation stress. Here we investigate possible mechanisms for the evolution of such behavior. Two behavioral traits (following of mucus trails, and crevice occupation), which both provide selective advantages to individuals that possess the traits over individuals that do not, result in self-organization of aggregations in crevices in the rock surface. We suggest that the existence of self-organizing aggregations provides a mechanism by which aggregation behavior can evolve. The inclusion of an explicitly coded third behavior, aggregation, in a simulated population produces patterns statistically similar to those found on real rocky shores. Allowing these three behaviors to evolve using an evolutionary algorithm, however, results in aggregation behavior being selected against on shores with high crevice density. The inclusion of broadcast spawning dispersal mechanisms in the simulation, however, results in aggregation behavior evolving as predicted on shores with both high crevice density and low crevice density (evolving in crevices first, and then both in crevices and on flat rock), indicating the importance of environmental interactions in understanding evolutionary processes. We propose that self-organization can be an important factor in the evolution of group behaviors. © 2008 Massachusetts Institute of Technology.
Persistent Identifierhttp://hdl.handle.net/10722/89318
ISSN
2015 Impact Factor: 1.042
2015 SCImago Journal Rankings: 0.376
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorStafford, Ren_HK
dc.contributor.authorDavies, MSen_HK
dc.contributor.authorWilliams, GAen_HK
dc.date.accessioned2010-09-06T09:55:20Z-
dc.date.available2010-09-06T09:55:20Z-
dc.date.issued2008en_HK
dc.identifier.citationArtificial Life, 2008, v. 14 n. 4, p. 409-423en_HK
dc.identifier.issn1064-5462en_HK
dc.identifier.urihttp://hdl.handle.net/10722/89318-
dc.description.abstractMany intertidal snails form aggregations during emersion to minimize desiccation stress. Here we investigate possible mechanisms for the evolution of such behavior. Two behavioral traits (following of mucus trails, and crevice occupation), which both provide selective advantages to individuals that possess the traits over individuals that do not, result in self-organization of aggregations in crevices in the rock surface. We suggest that the existence of self-organizing aggregations provides a mechanism by which aggregation behavior can evolve. The inclusion of an explicitly coded third behavior, aggregation, in a simulated population produces patterns statistically similar to those found on real rocky shores. Allowing these three behaviors to evolve using an evolutionary algorithm, however, results in aggregation behavior being selected against on shores with high crevice density. The inclusion of broadcast spawning dispersal mechanisms in the simulation, however, results in aggregation behavior evolving as predicted on shores with both high crevice density and low crevice density (evolving in crevices first, and then both in crevices and on flat rock), indicating the importance of environmental interactions in understanding evolutionary processes. We propose that self-organization can be an important factor in the evolution of group behaviors. © 2008 Massachusetts Institute of Technology.en_HK
dc.languageengen_HK
dc.publisherM I T Press. The Journal's web site is located at http://www.mitpressjournals.org/loi/artlen_HK
dc.relation.ispartofArtificial Lifeen_HK
dc.subjectAggregationen_HK
dc.subjectEmergenceen_HK
dc.subjectEvolutionen_HK
dc.subjectLittorinid snailen_HK
dc.subjectRocky shoreen_HK
dc.subjectSelf-organizationen_HK
dc.titleSelf-organization of intertidal snails facilitates evolution of aggregation behavioren_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1064-5462&volume=14&spage=1&epage=15&date=2008&atitle=Self-Organization+of+Intertidal+Snails+Facilitates+Evolution+of+Aggregation+Behavioren_HK
dc.identifier.emailWilliams, GA: hrsbwga@hkucc.hku.hken_HK
dc.identifier.authorityWilliams, GA=rp00804en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1162/artl.2008.14.4.14401en_HK
dc.identifier.pmid18573064-
dc.identifier.scopuseid_2-s2.0-54049103298en_HK
dc.identifier.hkuros148167en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-54049103298&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume14en_HK
dc.identifier.issue4en_HK
dc.identifier.spage409en_HK
dc.identifier.epage423en_HK
dc.identifier.isiWOS:000259264200002-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridStafford, R=14007374300en_HK
dc.identifier.scopusauthoridDavies, MS=35121268800en_HK
dc.identifier.scopusauthoridWilliams, GA=7406082821en_HK
dc.identifier.citeulike3208260-

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