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Disruptive selection occurs when the extreme characteritics of a species are selected over the "middle of the road" ones. This results in the population expressing the more extreme traits.
Disruptive selection

How a population may change when the extremes are favored in selection.


OccurrenceEdit

Disruptive selection occurs when there are very specific advantages for a species to be adapted to.  From my lesson plan an example could be the rock pocket mouse. There are very light substrates (sandy) and very dark ones (lava flows). There is an advantage to being very light or very dark but inbetween serves no real advantage to blending in.

ReferencesEdit

Flegr, J. (2009). Selection: disruptive, selective and directional. Retrieved from http://www.frozenevolution.com/selection-disruptive-stabilizing-and-directional

Taggart, R. (n.d.) Modes of selection. Retrieved from http://taggart.glg.msu.edu/isb200/select.htm

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