Sentence examples for more extreme traits from inspiring English sources

Both the coevolution and pollinator shift models are often misunderstood to imply that selection will always occur in the direction of more extreme traits, but reversals are a well-known aspect of floral macroevolution (Stebbins 1970).

We have no evidence that female N. bryanti, N. lepida, or their congeners [ 28, 29] prefer larger males or those with more extreme traits.

First-generation homozygotes for mg44 receive oocyte contributions from their heterozygous parent (termed "maternal rescue"), blunting the more extreme traits associated with their F2 progeny.

For example, a preference for large or exaggerated traits (e.g., body size, signals) may predispose females of one species to choose heterospecific males if they possess more extreme traits than conspecifics [ 27]; reviewed in Pfennig 2007].

Females can then evolve resistance by no longer preferring the trait, and males are in turn selected to evolve an even more extreme display trait.

These male traits are assumed to signal benefits to females, which is why females prefer males with more extreme expression of these traits", said behavioural ecologist Michael Jennions, a professor at the Australian National University, who was not part of this study.

Heath et al. suggest that the same variables, like personality traits of biological effects, have continued to determine which individuals will become smokers, but that in more recent years only individuals with more extreme values on those traits are becoming smokers.

While human selection has been a major driving force in the types of changes outlined above, subject to the vagaries of fashion, it has often tended to be highly directional favouring more and more extreme manifestations of the traits in question.

This tendency becomes more extreme for chi-square distributed traits with non-equal variance (Panel D).

Thus, at closely linked positions, one breed may have the genotype AAbb and the second aaBB (where capital letters indicate the dominant allele for an increased incidence of incubation behaviour) and hence the F1 cross has the genotype AaBb and its phenotype for the trait is more extreme than that of either parental line.

Some descendants in the F2 population showed phenotypes for the PR trait that are more extreme that those shown by the regenerating parent line.