Dictionary > Relative fitness

Relative fitness

Definition
noun
A measure of biological fitness wherein the reproductive rate (of a genotype or a phenotype) is relative to the maximum reproductive rate (of other genotypes or phenotypes) in a given population
Supplement
In biology, Darwinian fitness or simply fitness of a biological trait describes how successful an organism has been at passing on its genes. It is different from physical fitness wherein the latter is concerned about the physical wellbeing of an organism. In Darwinian fitness, it is about the suitability of an organism to reproduce offspring. The more likely that an individual is able to survive and live longer to reproduce, the higher is the fitness of that individual. There are two ways through which fitness can be measured: (1) absolute fitness and (2) relative fitness. Absolute fitness pertains to the fitness of an organism based on the number of offspring that a fit organism would reproduce in its lifetime and that its offspring would reach reproductive age. Relative fitness is a standardized absolute fitness. It is a measure of biological fitness wherein the reproductive rate (of a genotype or a phenotype) is relative to the maximum reproductive rate (of other genotypes or phenotypes) in a given population. It can be measured by absolute fitness divided by the average number of offspring in a particular population. It is expressed as wrel.
See also:


You will also like...

Birth Control and Contraception
Birth Control and Contraception

Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..

"Cronopio dentiacutus", a prehistoric mammal (an illustration)
Mammalian Ancestors

Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..

Gibberellins and Gibberellic Acid
Gibberellins and Gibberellic Acid

This tutorial describes the role of gibberellin family in plants. Find out the effects of gibberellin on plant growth an..

Circulation
Circulation

The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..

Still Water Animals
Still Water Animals

Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..

Thermographic image of face and neck
Regulation of Organic Metabolism, Growth and Energy Balance

The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the e..

Related Articles...

No related articles found

See all Related Topics