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Evolution of Mixed Reproductive Strategies in Simple Life-History Models

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  • M. Heino

Abstract

Frequency-dependent selection may favor the evolution of mixed reproductive strategies, resulting in polymorphic life-histories within a population. Here I explore the theoretical and ecological possibilities for evolution of mixed reproductive strategies in two minimal age-structured life-history models. The first model addresses evolution of delayed maturity (i.e. competition between annuals and biennials), and the second one deals with evolution of semelparity versus iteroparity. A necessary condition for evolution of polymorphism is that the description of environmental feedback in the model is two-dimensional. A two-dimensional description is necessary if different age-classes experience the influence from the environment differently and have a different influence on the environment. This might be caused by resource utilization or predation risk being different between age-classes.

Suggested Citation

  • M. Heino, 1997. "Evolution of Mixed Reproductive Strategies in Simple Life-History Models," Working Papers ir97063, International Institute for Applied Systems Analysis.
  • Handle: RePEc:wop:iasawp:ir97063
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    1. Ilkka Kananen & Pekka Korhonen & Jyrki Wallenius & Hannele Wallenius, 1990. "Multiple Objective Analysis of Input-Output Models for Emergency Management," Operations Research, INFORMS, vol. 38(2), pages 193-201, April.
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    3. Karaivanova, Jasmina & Korhonen, Pekka & Narula, Subhash & Wallenius, Jyrki & Vassilev, Vassil, 1995. "A reference direction approach to multiple objective integer linear programming," European Journal of Operational Research, Elsevier, vol. 81(1), pages 176-187, February.
    4. Korhonen, Pekka & Yu, GuangYuan, 1998. "On computing objective function values in multiple objective quadratic-linear programming," European Journal of Operational Research, Elsevier, vol. 106(1), pages 184-190, April.
    5. Korhonen, Pekka J. & Laakso, Jukka, 1986. "A visual interactive method for solving the multiple criteria problem," European Journal of Operational Research, Elsevier, vol. 24(2), pages 277-287, February.
    6. Korhonen, Pekka & Soismaa, Margareta, 1988. "A multiple criteria model for pricing alcoholic beverages," European Journal of Operational Research, Elsevier, vol. 37(2), pages 165-175, November.
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