USING A GAME THEORETICAL APPROACH FOR EXPERIMENTAL SIMULATION OF BROOD REDUCTION - Conflict and co-operation, effect on brood size with limited resources

Fredrik Åhman, Lars Hillström

Abstract

A number of hypothesis have been presented to explain the complex interactions occurring during brood reduction, but few simulation models successfully combines hypothesis together necessary to describe evolutionary stable strategies. In our solution we present a simple experimental simulation for brood reduction for which each sibling act as an autonomous agent that has the ability to initiate actions for co-operation and competition against others chicks within the same brood. Agents have a limited set of actions that can be activated during the onset of some environmental condition. Parameters for food distribution are determined on a basis of a former known theory for maximizing inclusive fitness. During the experimental simulations we have studied size and fitness measures with varying degree of asynchrony and prey density for siblings within the artificial brood. Results from the experimental simulation shows interesting similarities with brood reduction in a real world setting. Agents within the artificial brood respond with competitiveness whenever resources are limited. Simulated later hatching also showed a lower rate of survival because of natural size hierarchy to co-siblings within the simulated brood.

References

  1. Bergstrom, T, R., 2000. Evolution of Behaviour in Family Genes, University of California at Santa Barbara, Economics Working Paper Series 1143, Department of Economics, UC Santa Barbara.
  2. Krebs JR, Davies N B, 1984, Behavioural ecology - An Evolutionary Approach, Blackwell scientific publications
  3. Kölliker M, Richner H, 2001, Parent-Offspring Conflict and the genetics of offspring solicitation and parental resource, Animal behaviour, 62, pp 395-407
  4. Lamey T C, Mock Douglas W 1991, Nonaggressive brood reduction in birds, Acta Congressus, Internationalis Ornithologici pp 1741-1751
  5. Mock D, Parker GA, Schwagmeyer P L 1998, Game theory, Sibling rivalry and Parent-Offspring conflict , LA Dugatkin & HK, Game theory and animal behaviour, 42 , pp 147-167
  6. Ploger B J, Mock Douglas W, 1986, Role of sibling aggression and food distribution to nestling cattle egrets, The Auk, 103:, pp 768-776
  7. Ricklefs R E ,1969, Preliminary models for Growth Rates in Altricial Birds , Ecology vol 50, No 6 pp 1031-1039
  8. Smith RD, Graeme F, Cresswell W, 2001, Dominance and feeding interference in small groups of Blackbirds, Behavioural ecology ,12,: pp 475-481
  9. Temme D H, Charnov E L, 1987, Brood Size Adjustment in Birds: Economical tracking in a temporally varying Environment, J Theor biol, 126, pp 137-147, Academic Press (London)
  10. Vinuela J 2000 , Opposing selective pressures on hatching asynchrony, egg viability, brood reduction and nestling growth, Behavioural Ecology, 48, pp 333- 343
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Paper Citation


in Harvard Style

Åhman F. and 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 - Volume 2: ICEIS, ISBN 972-8865-19-8, pages 220-225. DOI: 10.5220/0002539502200225


in Bibtex Style

@conference{iceis05,
author={Fredrik Åhman and Lars Hillström},
title={USING A GAME THEORETICAL APPROACH FOR EXPERIMENTAL SIMULATION OF BROOD REDUCTION - Conflict and co-operation, effect on brood size with limited resources},
booktitle={Proceedings of the Seventh International Conference on Enterprise Information Systems - Volume 2: ICEIS,},
year={2005},
pages={220-225},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002539502200225},
isbn={972-8865-19-8},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Seventh International Conference on Enterprise Information Systems - Volume 2: ICEIS,
TI - USING A GAME THEORETICAL APPROACH FOR EXPERIMENTAL SIMULATION OF BROOD REDUCTION - Conflict and co-operation, effect on brood size with limited resources
SN - 972-8865-19-8
AU - Åhman F.
AU - Hillström L.
PY - 2005
SP - 220
EP - 225
DO - 10.5220/0002539502200225