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SUMMARY:Mate choice\, sexual selection\, and the evolutionary dynamics of 
 magic traits - Eva Kisdi - University of Helsinki\, Finland
DTSTART:20130506T150000Z
DTEND:20130506T160000Z
UID:TALK44383@talks.cam.ac.uk
CONTACT:Bram Kuijper
DESCRIPTION:Traditional models of speciation by assortative mating\, inclu
 ding the seminar paper of Felsenstein (1981)\, considered mate choice base
 d on mating groups such as plants with different flowering times. I revisi
 t these models and show that if a "knife-edge" symmetry assumption of prev
 ious models is removed\, then sexual selection thwarts speciation by elimi
 nating the mating groups. Next\, I expand the model taking also ecological
  selection into account and compare the population genetics of magic trait
 s under group-based and self-referent assortative mating. Finally\, I cons
 ider long-term evolution by applying the adaptive dynamics framework to se
 xual populations\, and investigate how ecological selection and sexual sel
 ection combine in the diversification of magic traits.
LOCATION:Part II Lecture Theatre\, Department of Zoology
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