Results 241 to 250 of about 12,864 (289)

Inclusive fitness and Hamilton’s rule in a stochastic environment

Theoretical Population Biology, 2021
The evolution of cooperation in Prisoner's Dilemmas with additive random cost and benefit for cooperation cannot be accounted for by Hamilton's rule based on mean effects transferred from recipients to donors weighted by coefficients of relatedness, which defines inclusive fitness in a constant environment.
Lessard, Sabin, Li, Cong, Zheng, Xiu-Deng, Tao, Yi   +3 more
openaire   +2 more sources

Hamilton's rule and conditionality

Ethology Ecology & Evolution, 1989
Hamilton's rule is that an altruistic act shoud be performed when r times the benefit to a recipient is greater than the cost to the donor, where r is a measure of the extent of genetic similarity at the locus determining the action. This rule applies when the action is conditional upon role.
openaire   +1 more source

Hamilton’S Rule

1997
Abstract If Professor David Glass was cool towards my work at the London School of Economics, Professor Lionel S. Pemose, FRS, at University College was equally so. I believe he definitely saw in me the eugenical spectre I mentioned in the first introduction.
openaire   +1 more source

Inclusive Fitness and Hamilton’s Rule

2021
This chapter evaluates the long and intimate association between the gene’s-eye view and the work of W.D. Hamilton. Hamilton’s key insight was that individual organisms can affect the transmission of their genes through personal reproductive success, as well as through the success of close relatives.
openaire   +1 more source

Hamilton's rule in multi-level selection models

Journal of Theoretical Biology, 2012
Hamilton's rule is regarded as a useful tool in the understanding of social evolution, but it relies on restrictive, overly simple assumptions. Here we model more realistic situations, in which the traditional Hamilton's rule generally fails to predict the direction of selection.
Burton, Simon, Jeffrey A, Fletcher, Michael, Doebeli   +2 more
openaire   +2 more sources

Hamilton's rule applied to reciprocal altruism

Proceedings of the 2004 Congress on Evolutionary Computation (IEEE Cat. No.04TH8753), 2004
Reciprocal altruism and inclusive fitness are generally considered alternative mechanisms by which cooperative, altruistic traits may evolve. Here we demonstrate that very general versions of Hamilton's inclusive fitness rule (developed by Queller) can be applied to traditional reciprocal altruism models such as the iterated prisoner's dilemma. In this
Fletcher, Jeffrey, Zwick, Martin
openaire   +2 more sources

Inclusive Fitness and Hamilton’s Rule

2015
This chapter examines how the logic of inclusive fitness theory can be mathematically formalized using the Price equation, and how that formalization can be used to derive Hamilton's rule in its simplest form, as applied to unconditional behaviors having additive effects on fitness.
openaire   +2 more sources

A generalization of Hamilton's rule—Love others how much?

Journal of Theoretical Biology, 2012
According to Hamilton's (1964a, b) rule, a costly action will be undertaken if its fitness cost to the actor falls short of the discounted benefit to the recipient, where the discount factor is Wright's index of relatedness between the two. We propose a generalization of this rule, and show that if evolution operates at the level of behavior rules ...
Alger, Ingela, Weibull, Jörgen
openaire   +4 more sources

Nonadditive Interactions and Hamilton’s Rule

2015
This chapter examines what happens in nonadditive interactions when such interactions take place between relatives, and how Hamilton's rule can be extended in two different ways to accommodate such nonadditivity. It first considers the selective pressures on nonadditive behaviors directed towards relatives by making use of the replicator dynamics to ...
openaire   +2 more sources

Hamilton’s Rule

2022
openaire   +1 more source