Homogamy

Homogamy is a method of reproduction in which mating is not random. Quite the reverse, homogamy involves the growth of individuals who are similar in certain phenotypic characteristics (height, colour, etc.).

Homogamy causes changes in prevalence of genotypes with a trend towards homozygous individuals.

This beetle (Lytta magister) from the Sorona desert in Arizona mates with other beetles of the same size. © deserttrumpet/Beverly Adams CC by-nc-sa 2.0