Parent-offspring conflict over reproductive efforts: Variations upon a theme by Charnov

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Parent-offspring conflict over reproductive efforts: Variations upon a theme by Charnov. / Lundberg, S.; Smith, Henrik G.

I: Journal of Theoretical Biology, Vol. 170, Nr. 2, 1994, s. 215-218.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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TY - JOUR

T1 - Parent-offspring conflict over reproductive efforts: Variations upon a theme by Charnov

AU - Lundberg, S.

AU - Smith, Henrik G.

PY - 1994

Y1 - 1994

N2 - A novel formulation of the theory of parent-offspring conflict is proposed. The basis of this formulation is an application of traditional life-history theory in combination with simple genetic arguments. The advanatage with this approach is conceptual, and the formulation is not in variance with earlier studies in the area. Parent-offspring conflict is, in our forumlation, not seen as a conflict between individuals, but as a tradeoff-an age-specific selection pressure acting on a trait, which is favourable when an individual is offspring and disadvantageous when it becomes parent. Using an ESS approach we investigate a simple offspring-wins problem: we find that a gene causing assertiveness of offspring will increase when rare, because the advantage thus gained by an assertive individual when young exceeds the cost incurred as adult by that half of its own offspring which belongs to the same assertive genotype.

AB - A novel formulation of the theory of parent-offspring conflict is proposed. The basis of this formulation is an application of traditional life-history theory in combination with simple genetic arguments. The advanatage with this approach is conceptual, and the formulation is not in variance with earlier studies in the area. Parent-offspring conflict is, in our forumlation, not seen as a conflict between individuals, but as a tradeoff-an age-specific selection pressure acting on a trait, which is favourable when an individual is offspring and disadvantageous when it becomes parent. Using an ESS approach we investigate a simple offspring-wins problem: we find that a gene causing assertiveness of offspring will increase when rare, because the advantage thus gained by an assertive individual when young exceeds the cost incurred as adult by that half of its own offspring which belongs to the same assertive genotype.

U2 - 10.1006/jtbi.1994.1180

DO - 10.1006/jtbi.1994.1180

M3 - Article

VL - 170

SP - 215

EP - 218

JO - Journal of Theoretical Biology

JF - Journal of Theoretical Biology

SN - 1095-8541

IS - 2

ER -