Mating Systems and StrategiesThis book presents the first unified conceptual and statistical framework for understanding the evolution of reproductive strategies. Using the concept of the opportunity for sexual selection, the authors illustrate how and why sexual selection, though restricted to one sex and opposed in the other, is one of the strongest and fastest of all evolutionary forces. They offer a statistical framework for studying mating system evolution and apply it to patterns of alternative mating strategies. In doing so, they provide a method for quantifying how the strength of sexual selection is affected by the ecological and life history processes that influence females' spatial and temporal clustering and reproductive schedules. |
From inside the book
Results 1-5 of 89
... sex ratio at breeding, if one successful male has several mates, several males must necessarily have no mates at all. It is this consequence of sexual selection that establishes the fundamental relationship between the variance in male ...
... ratio Cov(z,w[z])/ (VZ Vw)1/2 is the product moment correlation between a phenotype z and its relative fitness w[z] ... Sex. Difference. in. the. Variance. in. Fitness. We will now examine the opportunity for selection in the male and the ...
... sex, Vi, divided Thus, by the squared average in fitness Imales Vmales/X2males and Ifemales among members of that Vfemales/X2females. These sex, X2.i expressions are linked together through the sex ratio and mean fitness. Furthermore ...
... sex ratio R in this or any population can be expressed as the ratio of the number of females to the number of males. In this case, R Nfemales 1 (Wade 1995). The average mating success per male, M, equals the number of females in the ki ...
... sex ratio, Nfemales/ Nmales. In future examples, we will let Vmates be the variance in mate numbers among males. Males might win or lose mates owing to either the Darwinian mechanism of sexual selection, direct male-male combat, or ...
Contents
1 | |
36 | |
3 The Phenology of Sexual Selection | 74 |
4 Multiple Matings and Postcopulatory Prezygotic Sexual Selection ... | 109 |
5 Female Life History and Sexual Selection | 128 |
6 The I Surface | 154 |
7 Conceptual Difficulties in Mating System Research ... | 169 |
8 Behavioral Influences on I | 208 |
10 A Darwinian Perspective on Alternative Mating Strategies ... | 370 |
11 Sexual Selection and Alternative Mating Strategies ... | 386 |
12 The Forms of Alternative Mating Strategies | 423 |
References | 471 |
Author Index | 517 |
Word Index | 526 |
Taxonomic Index | 530 |
9 A Classification of Mating Systems | 262 |