Sentence examples for mate age from inspiring English sources

The study shows that there is a "fitness basis" to people's choice of mate age, says Robin Dunbar, an anthropologist at the University of Liverpool, U.K. It also reveals a "clash of interest between the two sexes," he says, because women have a smaller window of reproductive opportunity.

Moreover, after correcting for mate age, VA, VPE, VPLOT and VYEAR together accounted for less than 15% of variation in mate FPS in the pedigree analysis.

For female mate FPS, the model included binary mate age (yearling or older male) and binary breeding experience (inexperienced or experienced female based on prior breeding on our nestbox plots) as fixed factors.

Although further experiments are needed to confirm the effect of mate age, these findings suggest that snails do not behave prudently in terms of mate quality.

Therefore, if E. quaesita adjusts sperm transfer number according to mate age, sperm transfer number should have varied to a greater degree in the non-virgin mate treatment than in the virgin mate treatment.

Models examining annual productivity controlled for any variation associated with year, timing of breeding (clutch initiation date), age and attributes of the mate (age, hue and chroma), before examining the effects of tail colour alone or tail and greater covert colour.

Smaller animals are more likely to survive to mating age than big ones, the thinking goes, making larger females scarcer than smaller males.

Thus, pheromone profiles are strongly affected by mating, age (or perhaps time since mating), and potentially by egg-laying.

The mating age gap is most pronounced in societies that favor polygyny [27], or a gerontocracy [14], in which old men monopolize access to reproductive females.

The strength of selection in Fig. 4 will vary with the realized fertility of older males, however, the general pattern will be expected to persist given any mating age gap favoring older males.

SCR is a newly developed method to evaluate the fertility of bull in the US, and includes several components in the evaluation model, i.e. the expanded service sire term, inbreeding of the bull, inbreeding of the embryo from the mating, age of the bull, AI organization combined with year of the mating, and fertility of the cow a bull is mated with (http://aipl.arsusda.gov/reference/arr-scr1.htm).