Image: schematic representation of fitness landscapes (IMAGE)
Caption
From study in PNAS:
Schematic representation of fitness landscapes. (A) Orange lines show maximum (dashed) and average (dotted) fitness of a population on a narrower peak (yellow circles), blue lines show the same for a wider peak (blue circles). A large difference between the maximum and average fitness of the population indicate a narrower local optima. (B) Trajectory of a population in a periodically changing environment with respect to a given fitness landscape (solid arrow) and with respect to an unseen other fitness landscape (dashed arrow). Wider peaks are more likely to be found and stayed on. (C) Hypothetical “trapping” of the population in variable environments. Evolution during the blue environment (dashed arrow) is stuck at lower fitness due to evolution during the red environment (solid arrow) and a better blue peak found by evolution in static environments (dotted lines) is thus never found in the variable environment.
Image and text: PNAS, Csenge et al.
Credit
PNAS, Csenge et al.
Usage Restrictions
Credit must be given to the creator. Adaptations must be shared under the same terms.
License
CC BY-SA