Let's summarize what's been covered:
Similarities between the runaway and chase-away forms of sexual selection:
- both result in evolution of extreme ornaments and displays in males
- in both, the male ornament does not (necessarily) have any connection to fitness
How chase-away differs from runaway:
- chase-away is characterized by exploitation and conflict between sexes instead of cooperation and mutual benefit
- chase-away features the evolution of female resistance, vs evolution of female preference, for the male display trait
- in chase-away, female fitness and male fitness are opposed to each
other.
End of chase-away sexual selection module.
Previous 
Top
of page