Adaptive peak

Adaptive peak
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adaptive peak
An equilibrium state in a population when the gene pool has allele frequencies that maximize the average fitness of a population's members.
adaptive radiation ...

Adaptive peak
A high point (perhaps one of several) on an adaptive landscape; selection tends to drive the genotype composition of the population toward a combination corresponding to an adaptive peak.
Related Terms:
Adaptive landscape ...

Wright's explanation for stasis was that organisms come to occupy adaptive peaks. In order to evolve to another, higher peak, the species would first have to pass through a valley of maladaptive intermediate stages.

The existence of multiple adaptive peaks and the random fixation of less fit alleles are integral features of the evolutionary process. Natural selection cannot be relied on to produce the best of all possible worlds." (Suzuki, D.T., Griffiths, A.J.

See also: Plant, Population, Organ, Evolution, Species