Other studies have, however, demonstrated fitness benefits of mating between individuals with a high or intermediate level of genetic similarity [ 18, 36, 37, 66].
As population size declines, mates can become limiting, and the chance of mating between relatives (i.e. inbreeding) increases.
The more disassortative mating there is, the faster the virus will spread.Sub-Saharan Africa and the Caribbean (the second-worst affected part of the world) have particularly high levels of disassortative mating between young girls and older men.
If retinal carotenoids affect a female's ability to discriminate among potential mates, we predicted that retinal carotenoid levels would be positively correlated with the level of mate discrimination and with the repeatability of the preference function between successive choice trials.
In D. melanogaster, curing individuals from endosymbiont infection decreases levels of mate discrimination between populations by about 50%, an effect likely mediated by the effect of endosymbionts on female pheromone production (Koukou et al., 2006; see also Sharon et al., 2010).
Ultimately, it appears that participants with a higher level of mate value are more demanding in their design of a mate.
Teachers' acceptance levels after the intervention (88/100) were very close to a 'very high level' of MATE scores (89 100).
In most lines there is no association between territorial success and mating success, and three lines with intermediate territoriality have some of the highest, and lowest, levels of mating success overall.
Assortative mating is the correlation between mates (Falconer and MacKay 1996), so the level of assortative mating by flowering time is the correlation between maternal and paternal flowering time.
The average estimated level of assortative mating was 0.37.
