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Darwinian fitness

Definition

noun

(1) A biological condition in which a competing variant is increasing in frequency relative to other competing variants in a population.

(2) A relative measure of reproductive success of an organism in passing its genes to the next generation.


Supplement

In biology, Darwinian fitness or simply fitness of a biological trait describes how successful an organism has been at passing on its genes. 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:


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Re: Why must we avert the genome of Eden?

... one should reasonably expect to see this accumulation, given the Darwinian framework. ) A compelling starting point could be the genome of ... most observed cases organisms tend to get rid of some genes for better fitness or to safe energy. Why would it have been different in the past? ...

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by wildfunguy
Fri Oct 04, 2013 7:49 pm
 
Forum: Evolution
Topic: Why must we avert the genome of Eden?
Replies: 6
Views: 8019

Why must we avert the genome of Eden?

... was to examine the claim, that the results of DNA studies confirm Darwinian evolution. I think there is no point in discussing the overwhelming ... most observed cases organisms tend to get rid of some genes for better fitness or to safe energy. Why would it have been different in the past? ...

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by Hunor
Mon Sep 23, 2013 12:08 am
 
Forum: Evolution
Topic: Why must we avert the genome of Eden?
Replies: 6
Views: 8019

Re: Am I the Next Step in Human Evolution?

... wish on ourselves. I suppose that this doesn't exactly fit with the Darwinian definition of evolution, but we are a very different species than ... those that are naturally healthy and lean have greater Darwinian fitness. Beyond this though, high metabolism is just good for health and ...

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by IamAnAlien
Tue Nov 22, 2011 8:28 am
 
Forum: Evolution
Topic: Am I the Next Step in Human Evolution?
Replies: 23
Views: 32102

Evolution from my point of view

... mean? a life is a self-sustained chemical system capable of undergoing Darwinian evolution. In genetic textbooks evolution is defined as “change ... over others. The expected number of offspring any organism reflects its fitness. Those organisms which have higher fitness will increase in number ...

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by BioSULTAN
Tue Apr 26, 2011 6:36 am
 
Forum: Evolution
Topic: Evolution from my point of view
Replies: 1
Views: 1956

Re:

... of physiological adaptation, and it shows another new route for the Darwinian development. Dougal,Would you please gave your explaination of ... and wait until conditions are more optimal to reproduce, its fitness (as measured by reproductive success) will be greater. 3. How does ...

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by robsabba
Tue Nov 17, 2009 4:12 pm
 
Forum: Evolution
Topic: About Physiological Darwinism:From Fitness to Optimality
Replies: 13
Views: 17445
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