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Titolo:
A QUANTITATIVE GENETIC MODEL OF GROUP SELECTION
Autore:
TANAKA Y;
Indirizzi:
YOKOHAMA NATL UNIV,INST ENVIRONM SCI & TECHNOL,TOKIWADAI 156 YOKOHAMAKANAGAWA 240 JAPAN MCGILL UNIV,DEPT BIOL MONTREAL PQ H3A 1B1 CANADA
Titolo Testata:
The American naturalist
fascicolo: 4, volume: 148, anno: 1996,
pagine: 660 - 683
SICI:
0003-0147(1996)148:4<660:AQGMOG>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
POLYGENIC BEHAVIORAL TRAIT; ANT PRISTOMYRMEX PUNGENS; PHENOTYPIC EVOLUTION; SOCIAL SPIDER; SEX-RATIO; STRUCTURED POPULATIONS; SUBDIVIDED POPULATION; CONTEXTUAL ANALYSIS; FINITE POPULATIONS; LOCAL EXTINCTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
64
Recensione:
Indirizzi per estratti:
Citazione:
Y. Tanaka, "A QUANTITATIVE GENETIC MODEL OF GROUP SELECTION", The American naturalist, 148(4), 1996, pp. 660-683

Abstract

The dynamics of a finite number of phenotypic characters in a subdivided population, evolving by the combined effects of individual and group selection, is modeled using a quantitative genetic theory. This model of group selection allows prediction of per-generation evolutionaryresponses of metapopulation mean phenotypes. These predictions are based on measurements of the selection gradient in each group, the additive genetic variance-covariance matrix within groups, the group selection gradient, and the intergroup variance-covariance matrix. The equilibrium intergroup variance-covariance matrix is presented for a migrant pool model and individual selection within groups. Numerical calculations demonstrate that group selection can significantly influence themetapopulation mean phenotypes with a realistic amount of intergroup divergence of phenotypes through drift and migration.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 10:00:58