Diversifying (or disruptive) selection: Diversifying selection occurs when extreme values for a trait are favored over the intermediate values. This type of selection often drives speciation. The result of this type of selection is increased genetic variance as the population becomes more diverse.
Does disruptive selection change the mean?
As with stabilizing selection, disruptive selection does not tend to change the mean trait value. Unlike stabilizing selection, however, disruptive selection increases variation by favoring individuals in the tails of the trait’s distribution.
Which type of traits would be favored in a population undergoing disruptive selection?
Which type of traits would be favored in a population undergoing disruptive selection? A population that has polymorphism within it.
What type of selection is disruptive?
Diversifying (or disruptive) selection: Diversifying selection occurs when extreme values for a trait are favored over the intermediate values. This type of selection often drives speciation. Diversifying selection can also occur when environmental changes favor individuals on either end of the phenotypic spectrum.
What happens during disruptive selection?
Disruptive selection is an evolutionary force that drives a population apart. The disruptive selection will cause organsisms with intermediate traits to reproduce less, and will allow those organisms with extreme traits to reproduce more. This causes the alleles for the extreme traits to increase in frequency.
What is disruptive selection example?
Disruptive selection produces a population that has two extreme versions of a trait as the dominant phenotype. For example, if both short and tall organisms, but not medium height organisms were favored this would be disruptive selection in action.
What happens to the mean in disruptive selection?
Disruptive selection can lead to a bimodal distribution of trait values and therefore can result in an increase in the variance of a trait without a change in its mean.
What are some examples of disruptive selection?
Disruptive Selection Examples: Color
- Peppered moths: One of the most studied examples of disruptive selection is the case of London’s peppered moths.
- Oysters: Light- and dark-colored oysters could also have a camouflage advantage as opposed to their medium-colored relatives.
What is the disruptive selection give example?
Which is true of disruptive selection?
What is disruptive selection give short example?
