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Quantitative genetic models of sexual Louise S. Mead and Stevan J. Arnold

Summary: Quantitative genetic models of sexual
Louise S. Mead and Stevan J. Arnold
Department of Zoology, 3029 Cordley Hall, Oregon State University, Corvallis, OR 97331, USA
Modeling of R.A. Fisher's ideas about the evolution of
male ornamentation using quantitative genetics began
in the 1980s. Following an initial period of enthusiasm,
interest in these models began to wane when theoreti-
cal studies seemed to show that the rapid evolution of
ornaments would not occur if there were costs associ-
ated with female mate choice. Recent theoretical work
has shown, however, that runaway evolution and other
kinds of extensive diversification of ornaments and pre-
ferences can occur, even when female choice is costly.
These new models highlight crucial parameters that
profoundly influence evolutionary trajectories, but
these parameters have been neglected in empirical
studies. Here, we review quantitative genetic models of
sexual selection with the aim of fostering communi-
cation and synergism between theoretical and empiri-


Source: Arnold, Stevan J. - Department of Zoology, Oregon State University


Collections: Biology and Medicine; Environmental Sciences and Ecology