Behavioral Metabolution: The Adaptive and Evolutionary Potential of Metabolism-Based Chemotaxis

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dc.contributor.author Egbert, Matthew en
dc.contributor.author Barandiaran, XE en
dc.contributor.author Di Paolo, EA en
dc.date.accessioned 2016-09-02T00:19:59Z en
dc.date.issued 2012 en
dc.identifier.citation Artificial Life, 2012, 18 (1), pp. 1 - 25 en
dc.identifier.issn 1064-5462 en
dc.identifier.uri http://hdl.handle.net/2292/30192 en
dc.description.abstract We use a minimal model of metabolism-based chemotaxis to show how a coupling between metabolism and behavior can affect evolutionary dynamics in a process we refer to as behavioral metabolution. This mutual influence can function as an in-the-moment, intrinsic evaluation of the adaptive value of a novel situation, such as an encounter with a compound that activates new metabolic pathways. Our model demonstrates how changes to metabolic pathways can lead to improvement of behavioral strategies, and conversely, how behavior can contribute to the exploration and fixation of new metabolic pathways. These examples indicate the potentially important role that the interplay between behavior and metabolism could have played in shaping adaptive evolution in early life and protolife. We argue that the processes illustrated by these models can be interpreted as an unorthodox instantiation of the principles of evolution by random variation and selective retention. We then discuss how the interaction between metabolism and behavior can facilitate evolution through (i) increasing exposure to environmental variation, (ii) making more likely the fixation of some beneficial metabolic pathways, (iii) providing a mechanism for in-the-moment adaptation to changes in the environment and to changes in the organization of the organism itself, and (iv) generating conditions that are conducive to speciation. en
dc.description.uri http://www.ncbi.nlm.nih.gov/pubmed/22035082 en
dc.language English en
dc.publisher MIT Press en
dc.relation.ispartofseries Artificial Life en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/1064-5462/ http://www.mitpressjournals.org/page/policies/authorposting en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Behavioral Metabolution: The Adaptive and Evolutionary Potential of Metabolism-Based Chemotaxis en
dc.type Journal Article en
dc.identifier.doi 10.1162/artl_a_00047 en
pubs.issue 1 en
pubs.begin-page 1 en
pubs.volume 18 en
dc.description.version VoR - Version of Record en
pubs.author-url http://www.mitpressjournals.org/doi/abs/10.1162/artl_a_00047#.V8ihA_l96Uk en
pubs.end-page 25 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 537921 en
pubs.org-id Science en
pubs.org-id School of Computer Science en
dc.identifier.eissn 1530-9185 en
pubs.record-created-at-source-date 2016-09-02 en


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