assortativeadj.

Brit.

/əˈsɔːtətɪv/, U.S.

/əˈsɔrdədɪv/

Etymology: < assort v. + -ative suffix.

That assorts; assortative mating, non-random mating, mating on the basis of the possession by the partners of similar characteristics, circumstances, etc.

ΘΚΠ

the world > animals > animal body > general parts > sexual organs and reproduction > [noun] > mating > assortative mating

assortative mating1897

1897 K. Pearson in Philos. Trans. 1896 (Royal Soc.) A. 187 258 Preference of individuals with an organ or characteristic of given size for mates with the same or another organ or characteristic of a size, the average of which differs from the..population average. This type of sexual selection which may be spoken of as assortative mating is measured mathematically by the coefficient of correlation between the two organs or characteristics in mated pairs.

1900 K. Pearson Gramm. Sci. (ed. 2) 429 We are largely thrown back for our quantitative determinations of assortative mating on man.

1902 Encycl. Brit. XXXIII. 637/1 Assortative mating exists when individuals which mate are not paired at random, but a definite correlation is established between the characters of one mate and those of the other.

1955 New Biol. 18 37 In a few animal species negative assortative mating, that is to say a tendency of like to mate with unlike, has been observed. Positive assortative mating occurs in flowering plants which are fertilized by insects.

This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2021).

单词	assortative
释义	assortativeadj. Brit. /əˈsɔːtətɪv/, U.S. /əˈsɔrdədɪv/ Etymology: < assort v. + -ative suffix. That assorts; assortative mating, non-random mating, mating on the basis of the possession by the partners of similar characteristics, circumstances, etc. ΘΚΠ the world > animals > animal body > general parts > sexual organs and reproduction > [noun] > mating > assortative mating assortative mating1897 1897 K. Pearson in Philos. Trans. 1896 (Royal Soc.) A. 187 258 Preference of individuals with an organ or characteristic of given size for mates with the same or another organ or characteristic of a size, the average of which differs from the..population average. This type of sexual selection which may be spoken of as assortative mating is measured mathematically by the coefficient of correlation between the two organs or characteristics in mated pairs. 1900 K. Pearson Gramm. Sci. (ed. 2) 429 We are largely thrown back for our quantitative determinations of assortative mating on man. 1902 Encycl. Brit. XXXIII. 637/1 Assortative mating exists when individuals which mate are not paired at random, but a definite correlation is established between the characters of one mate and those of the other. 1955 New Biol. 18 37 In a few animal species negative assortative mating, that is to say a tendency of like to mate with unlike, has been observed. Positive assortative mating occurs in flowering plants which are fertilized by insects. This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2021). < adj.1897
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