Sentence examples for the available variation from inspiring English sources

This was the basis for Fleeming Jenkins' famous objection to Darwin, namely that the available variation would be used up too fast.

Natural selection is a mechanistic process that works with the available variation in a population and retains traits that are correlated with higher reproduction in the current circumstances.

First, the evolution of virulence could have been constrained by the limited genetic variation in the pathogen, as described above, reducing the available variation in virulence-associated genes.

We interpret our results to indicate that the effects of domesticating selection have reduced the available variation for studies of anxiety related behavior in commonly used mouse populations, and by segregating the 'lost' alleles back into the laboratory population they are detectable sources of variation from among a broader quantitative distribution of behavior.

Selection occurs when the scientists choose the theories, out of the pool of available variation, which best fit the data and other pre-existing ideas.

For instance, the use by signalers of available variation for individual recognition conflicts with the need for stereotypic characteristics for group recognition in bird song [ 26].

Although a regionally based analysis was not possible with the data available, variations in vulnerabilities and adaptive abilities appear to exist between and within regions on the basis of a number of common factors (see "Understanding the Capacity of Canada's North for Health Adaptation"; Grambsch and Menne 2003).

When nuclear sequences are considered together with mtDNA and microsatellites, it becomes clear that neither the standard neutral model, nor a simple long-term exponential growth model, can account for all the available human variation data.

Consequently, in nature the established endophyte-host combinations clearly represent only a fraction of the available genetic variation in the populations.

Changes to the metabolism are constrained by the available genetic variation, the laws of biochemistry and by the selective pressure the organisms are subject to.

Their ability to respond is constrained both by the available genetic variation and by genetic correlations between tolerance traits (Caruso 2004; Etterson 2004).