Frequency-dependent selection: when being different makes you not stand out.
A recent study reports frequency-dependent survival within highly variable guppy populations. Fitness advantages to rare genotypes may help maintain variation within populations, but the mechanisms underlying these advantages require further study.
Nosil
Patrik
P
Department of Biological Sciences, Simon Fraser University, Burnaby, BC V5A 1S6, Canada. pnosila@sfu.ca
D000222:Adaptation, Physiological; D000818:Animals; D005075:Biological Evolution; D003116:Color; D014644:Genetic Variation; D005838:Genotype; D008297:Male; D010641:Phenotype; D011036:Poecilia / Q000235:genetics* / Q000502:physiology; D011157:Population Dynamics; D011235:Predatory Behavior; D012641:Selection, Genetic