| 词汇 | example_english_kin-selection |
| 释义 | kin selectioncollocation in Englishmeanings of kinand selectionThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with selection. kin noun[plural] uk /kɪn/ us /kɪn/ old-fashioned family ... See more at kin selection noun uk /sɪˈlek.ʃən/ us /səˈlek.ʃən/ the act of choosing someone ... See more at selection Examples of kin selectionThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. The strategies in question could have evolved through group selection in essentially the same way they could have evolved through kinselection. The depth of sharing with relatives (and the asymmetry in the direction of young households) is highly evocative of kinselection-based nepotism. Gurven seems to lose interest in kinselection at this point and says no more about it, even in the conclusions. Obviously, for this kinselection to actually work, the presence of the gene must be somehow perceivable and recognized. He points out that giving to kin is not necessarily kinselection because near neighbors might just happen to be kin. My assessment is that kinselection was abandoned prematurely. The evolutionary models of kinselection and of reciprocal altruism are unstable and should be avoided. These results show that syntax can be selected for through a combined effect of kinselection and group selection. I will address the limitations of path analysis below and suggest that kinselection was abandoned prematurely. It seems obvious that kinselection plays a role in human food transfers, because parents feed their children. Symbiotic societies (chapter 17) composed of individuals belonging to different species have certainly not evolved by kinselection. This article attempts to organize available crosscultural evidence pertaining to several contentious evolutionary models: kinselection, reciprocal altruism, tolerated scrounging, and costly signaling. Kinselection works because cooperating kin-groups are more productive than non-cooperating ones. Besides kinselection and reciprocity, we remain sceptical as to how much group selection of genetic variation actually occurs in nature, but this is an empirical issue. Such interactions cannot be understood within the framework of kinselection theory (inclusive fitness), since the interacting individuals are not related at all in this case. Kinselection predicts that as the coefficient of relatedness between infecting parasites decreases, the benefits of competition to individual genotypes increases. Kinselection predicts that the fitness advantages of within-host competitive ability rises as the relatedness between infecting genotypes decreases. Group selection, like kinselection, is a mechanism that is capable of explaining real altruism. Gurven attempts to organize the data on human food transfers and relate them to four nonexclusive evolutionary models: kinselection, reciprocal altruism, tolerated scrounging, and costly signaling. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of kin Go to the definition of selection See other collocations with selection |
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