TY - JOUR
T1 - Quantitative genetic models of sexual selection by male choice
AU - Nakahashi, Wataru
PY - 2008/9/1
Y1 - 2008/9/1
N2 - There are many examples of male mate choice for female traits that tend to be associated with high fertility. I develop quantitative genetic models of a female trait and a male preference to show when such a male preference can evolve. I find that a disagreement between the fertility maximum and the viability maximum of the female trait is necessary for directional male preference (preference for extreme female trait values) to evolve. Moreover, when there is a shortage of available male partners or variance in male nongenetic quality, strong male preference can evolve. Furthermore, I also show that males evolve to exhibit a stronger preference for females that are more feminine (less resemblance to males) than the average female when there is a sexual dimorphism caused by fertility selection which acts only on females.
AB - There are many examples of male mate choice for female traits that tend to be associated with high fertility. I develop quantitative genetic models of a female trait and a male preference to show when such a male preference can evolve. I find that a disagreement between the fertility maximum and the viability maximum of the female trait is necessary for directional male preference (preference for extreme female trait values) to evolve. Moreover, when there is a shortage of available male partners or variance in male nongenetic quality, strong male preference can evolve. Furthermore, I also show that males evolve to exhibit a stronger preference for females that are more feminine (less resemblance to males) than the average female when there is a sexual dimorphism caused by fertility selection which acts only on females.
KW - Position reversal between sexes
KW - Runaway process
KW - Sex role reversal
KW - Sexual dimorphism
KW - Shortage of available male partners
KW - Variance in male quality
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U2 - 10.1016/j.tpb.2008.06.001
DO - 10.1016/j.tpb.2008.06.001
M3 - Article
C2 - 18621070
AN - SCOPUS:49749143336
VL - 74
SP - 167
EP - 181
JO - Theoretical Population Biology
JF - Theoretical Population Biology
SN - 0040-5809
IS - 2
ER -