Results 31 to 40 of about 2,388,262 (276)

Extending the range of additivity in using inclusive fitness

open access: yesEcology and Evolution, 2021
Inclusive fitness is a concept widely utilized by social biologists as the quantity organisms appear designed to maximize. However, inclusive fitness theory has long been criticized on the (uncontested) grounds that other quantities, such as offspring ...
Samuel R. Levin, Alan Grafen
doaj   +1 more source

Integrating the theories of kin selection and sexual selection [PDF]

open access: yes, 2019
Sexual selection and kin selection are both considered special cases of natural selection. However, both topics have developed almost entirely independently, with a prominent review even suggesting that there is no overlap between the two theories.
Faria, Gonçalo S.
core   +1 more source

Influence of kinship and MHC class II genotype on visual traits in zebrafish larvae (Danio rerio). [PDF]

open access: yesPLoS ONE, 2012
Kin recognition can drive kin selection and the evolution of social behaviour. In zebrafish (Danio rerio, Hamilton 1822), kin recognition is based on olfactory and visual imprinting processes.
Cornelia Hinz   +4 more
doaj   +1 more source

Involvement of Flagellin in Kin Recognition between Bacillus velezensis Strains

open access: yesmSystems, 2022
Kin discrimination in nature is an effective way for bacteria to stabilize population cooperation and maintain progeny benefits. However, so far, the research on kin discrimination for Bacillus still has concentrated on “attack and defense” between cells
Yan Liu   +8 more
doaj   +1 more source

An Experimental Study of Kin Selection [PDF]

open access: yesEvolution, 1980
In this paper, I report the results of an experimental study of kin selection and its influence on the tendency of larvae to cannibalize eggs in the flour beetle, Tribolium confusum. Kin selection has been defined by Maynard Smith (1964, 1976) as that evolutionary process which occurs when individuals within a randomly mating population interact with ...
openaire   +2 more sources

Kin and multilevel selection in social evolution: a never-ending controversy? [version 1; referees: 4 approved]

open access: yesF1000Research, 2016
Kin selection and multilevel selection are two major frameworks in evolutionary biology that aim at explaining the evolution of social behaviors. However, the relationship between these two theories has been plagued by controversy for almost half a ...
Jos Kramer, Joël Meunier
doaj   +1 more source

Grandparental Childcare for Biological, Adopted, and Step-Offspring: Findings From Cross-National Surveys

open access: yesEvolutionary Psychology, 2020
Based on kin selection theory, amounts of grandparental investment should reflect the probability to share common genes with offspring. Adoption may represent a special case, however, yet grandparental investment in adopted children has previously been ...
Antti O. Tanskanen   +2 more
doaj   +1 more source

Kin selection, group selection, and the varieties of population structure [PDF]

open access: yes, 2018
Various results show the ‘formal equivalence’ of kin and group selectionist methodologies, but this does not preclude there being a real and useful distinction between kin and group selection processes.
Birch, Jonathan
core   +4 more sources

On age-specific selection and extensive lifespan beyond menopause [PDF]

open access: yesRoyal Society Open Science, 2020
Standard evolutionary theory of ageing predicts weaker purifying selection on genes critical to later life stages. Prolonged post-reproductive lifespan (PPRLS), observed only in a few species like humans, is likely a result of disparate relaxation of ...
Tin Yau Pang
doaj   +1 more source

The genetical theory of kin selection [PDF]

open access: yesJournal of Evolutionary Biology, 2011
AbstractNatural selection operates both directly, via the impact of a trait upon the individual’s own fitness, and indirectly, via the impact of the trait upon the fitness of the individual’s genetically related social partners. These effects are often framed in terms of Hamilton’s rule,rb − c > 0, which provides the central result of social ...
A. GARDNER, S. A. WEST, G. WILD
openaire   +2 more sources

Home - About - Disclaimer - Privacy