The unique anatomical trends of the new species, namely chaffinch-like beak and modified hind and forelimbs, reveal that there was a process of divergence of resource competition traits among the three sympatric finches.
In addition, to the primary reproductive traits important for sperm competition, traits involved in behavioral sexual competition were also reduced in M. coronatus.
However, current views agree that some factors limit the evolution of sperm competition traits via good-genes processes and contribute to the maintenance of genetic variation among males in traits determining the outcome of sperm competition.
While these effects do not affect estimations of genetic variance in specific sperm competition traits, because in these cases absolute measures are taken (e.g., testis size of individuals is measured), they are likely to confound estimations of genetic variance underlying holistic measures of sperm competitiveness.
The anti-competition trait pops up in other ways that are far less benign than simply trying to get into the record books.
These experiments showed the seed production of group 4 genotypes to be most restricted by the presence of competition, a trait that increases the potential for compensation in mixtures via competitive release (Fig. 5; Supplementary Data Table S5).
He compensated for a gap in talent by outworking his competition, a trait that served him well at Florida State, where he walked on.
Nice germs finish last, but nasty ones that cause a lot of diarrhea will spread around more, infect more people and beat out the competition — a trait that evolution will tend to favor.
Traits that are affected by competition, or traits that are subjectively scored, may provide significance levels approaching unity.
Thus, the costs of sneaking may well lead to adaptations to sperm competition in traits like ejaculate size or gamete qualities.
