Sentences with phrase «reproductive fitness»

The more closely related the parents, the bigger the hit on reproductive fitness.

Among biologists, the prevailing paradigm is that some male traits are downright better than others, indicating reproductive fitness to the female.

An evolutionary model of reproductive fitness in which maternal antigens that are not genetically passed down to daughter progeny promote...

In this equation, C and B are the costs and benefits in terms of reproductive fitness of an altruistic behavior and r is the coefficient of relatedness.

Exercise helps you to look younger and healthier, which are both biological signals of attractiveness because they are associated with reproductive fitness.

@John — Perhaps you should read E. O. Wilson's «Sociobiology: The New Synthesis» for a better understanding of how specific individual behaviors may favor overall reproductive fitness for a species where, frequently, these behaviors appear to be to the detriment of the individuals involved.

Hello Before you eliminate figs from your diet; The wasps USE the figs for their own reproductive fitness and their life history evolution evolves around the fig.

Human reproductive fitness begins with birth and breastfeeding, and the necessary environment is maternal - infant SKIN - TO - SKIN CONTACT (SSC).

A common garden experiment with different lines revealed that plants which produce higher amounts of TA - G maintained a higher vegetative and reproductive fitness when they were attached by cockchafer larvae.

Low levels of genetic diversity could decrease reproductive fitness and resistance to disease, and generally lower animals» potential to adapt to a changing environment.

Under these conditions, natural selection may be favoring genes that confer resistance to disease, such as AIDS and malaria, or enhance reproductive fitness in other ways, researchers said in a report in Science.

By using eggs and ejaculates from many individuals in each reproductive event, the authors provided realistic estimates of male reproductive fitness compared to the population.

At the moment it seems that most biologists favour Wallace's notion of ornament: that it serves to advertise reproductive fitness in some important respect, and that a mate's response is largely unconscious, indeed, determined by biology.

In a narrower sense, genetic drift refers to the expected population dynamics of neutral alleles (those defined as having no positive or negative impact on reproductive fitness), which are predicted to eventually become fixed at zero or 100 % frequency in the absence of other mechanisms affecting allele distributions.

Based on what we know about evolution — the process through which a species passes on the genes that make their kind more successful while weeding out the negative traits — genes linked to psychiatric and developmental disorders should be part of that latter group, the study explains, «as they interfere with reproductive fitness.»

But the particular experience of orgasm, he says, is neither a necessary nor sufficient condition for reproductive fitness in females.

These things «transcend the imperatives of biology».3 They make no contribution to our reproductive fitness yet are important, perhaps the most important, human tendencies.

It simply points out that there are things about man, critical things, which are not explained by the merely physical, reproductive fitness, adaptive needs narrative.

The underlying science to all biology is that genes make brains and bodies, and brains make those bodies behave to accomplish «reproductive fitness».

In the «self seeking like» hypothesis, individuals unconsciously look for a mirror image of themselves in others, seeking criteria of beauty or reproductive fitness in the context of self - reference.

Overall, high - testosterone birds had a notable 35 percent increase in reproductive fitness, passing on more genes to the next generation.

(C) By ensuring that the gene is almost always inherited, the gene drive can spread the altered gene through a population over many generations, even if the associated trait reduces the reproductive fitness of each organism.

Early in life, priorities in mammals are shifted toward development, growth, and reproductive fitness.

At a deeper, molecular level, the changes in birds» hormones raise questions about their reproductive fitness and the potential for ecological and evolutionary consequences.»

Dr. Provine explains, «While standards of beauty vary across cultures, youth and healthiness are always in fashion because they are associated with reproductive fitness.»