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Evolution der Kooperation: Welche Rolle spielt Erpressung dabei?

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Erpresserische Strategien können sich innerhalb einer Bevölkerung nicht gut ausbreiten, da irgendwann die Wahrscheinlichkeit, auf seinesgleichen zu stoßen, zu groß wird. Anders verhält es sich jedoch bei Wechselwirkungen zwischen zwei verschiedenen Populationen wie zum Beispiel zwischen Wirtsorganismus und Symbionten: Dort können sich erpresserische Strategien sehr wohl vermehren - und zwar überraschenderweise gerade innerhalb jener Bevölkerung, die sich langsamer entwickelt. Die Mathematiker Karl Sigmund von der Universität Wien, Christian Hilbe vom Max Planck Institut für Evolutionsbiologie sowie Martin Nowak von der Harvard University veröffentlichen dazu aktuell eine spieltheoretische Studie in der renommierten Fachzeitschrift "Proceedings der National Academy of Science" (PNAS).

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ZFSXXEP #305965254 ECM: bby.oooz.uwv/gwu/eot/99.5571/nqfx.9001058107 (bynjig gmrozp)
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