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Åhman, Fredrik
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Åhman, F. & Hillström, L. (2005). Using a Game Theoretical Approach for Experimental Simulation of Brood Reduction: Conflict and Co-Operation, Effect on Brood Size with Limited Resources. In: Proceedings of the Seventh International Conference on Enterprise Information Systems. Paper presented at ICEIS 2005, The Seventh International Conference on Enterprise Information Systems, Miami, USA, May 25-28, 2005 (pp. 220-225).
Open this publication in new window or tab >>Using a Game Theoretical Approach for Experimental Simulation of Brood Reduction: Conflict and Co-Operation, Effect on Brood Size with Limited Resources
2005 (English)In: Proceedings of the Seventh International Conference on Enterprise Information Systems, 2005, p. 220-225Conference paper, Published paper (Other (popular science, discussion, etc.))
Abstract [en]

The evolution of parental care includes typical caring behaviour, such as protecting or feeding offspring. Sibling rivalry is anthropogenic viewed as conflicting behaviour, and can ultimately lead to brood reduction. In this study we have used object oriented programming to simulate different scenarios in this sibling rivalry conflict. A number of hypotheses have been proposed to explain the complex interactions occurring during brood reduction, but few simulation models successfully combines it with a hypothesis necessary to describe an ESS. In our solution we present a simple experimental simulation for brood reduction, where each sibling acts as an autonomous agent that has the ability to initiate actions for cooperation and competition against other siblings. Agents have a limited set of actions that can be activated during the onset of some specific environmental conditions, such as prey density, different climate variables etc. Parameters for food distribution are determined on a basis of a former known theory for maximizing inclusive fitness. In the computer simulations we have studied effects on sizes of siblings and fitness measures with varying degree of hatching patterns and prey density for siblings within the artificial brood. Results from the experimental simulations demonstrate interesting similarities with brood reduction in a real world setting, such as in raptorial birds that practice facultative siblicidal behaviour. Agents within the artificial brood respond with stronger conflicting behaviour whenever resources are limited and simulating increased hatching asynchrony lead to a lower survival rate (because of increased size hierarchy) of siblings within the simulated brood.

Keywords
sibling rivalry, brood reduction, parental care, familar conflict, game theory, ESS
National Category
Ecology
Identifiers
urn:nbn:se:hig:diva-2241 (URN)972-8865-19-8 (ISBN)
Conference
ICEIS 2005, The Seventh International Conference on Enterprise Information Systems, Miami, USA, May 25-28, 2005
Available from: 2008-10-22 Created: 2008-10-22 Last updated: 2018-03-13Bibliographically approved
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