scholarly journals Sexual Selection on male cuticular hydrocarbons via male–male competition and female choice

2016 ◽  
Vol 29 (7) ◽  
pp. 1346-1355 ◽  
Author(s):  
S. M. Lane ◽  
A. W. Dickinson ◽  
T. Tregenza ◽  
C. M. House
Keyword(s):  
Sexual Selection ◽  
Cuticular Hydrocarbons ◽  
Female Choice ◽  
Male Competition

scholarly journals Sexual selection in harems: male competition plays a larger role than female choice in an amphipod

2008 ◽  
Vol 19 (3) ◽  
pp. 642-649 ◽  
Author(s):  
Vikram K. Iyengar ◽  
Bianca D. Starks
Keyword(s):  
Sexual Selection ◽  
Female Choice ◽  
Male Competition

scholarly journals Migration strategy and divergent sexual selection on bird song

2008 ◽  
Vol 276 (1656) ◽  
pp. 585-590 ◽  
Author(s):  
Sarah A Collins ◽  
Selvino R de Kort ◽  
Javier Pérez-Tris ◽  
José Luis Tellería
Keyword(s):  
Sexual Selection ◽  
Female Choice ◽  
Selection Pressure ◽  
Migratory Birds ◽  
Male Competition ◽  
Migration Strategy ◽  
Migration Patterns ◽  
Complex Song ◽  
Males And Females ◽  
First Time

Migratory birds are assumed to be under stronger sexual selection pressure than sedentary populations, and the fact that their song is more complex has been taken as confirmation of this fact. However, this assumes that sexual selection pressure due to both male competition and female choice increase together. A further issue is that, in many species, songs become less complex during competitive encounters; in contrast, female choice selects for more complex song, so the two selection pressures may drive song evolution in different directions. We analysed song in two sedentary and two migratory populations of blackcaps ( Sylvia atricapilla ), a species in which different song parts are directed to males and females. We found that migratory populations produce longer, female-directed warbles, indicating sexual selection through female choice is the strongest in these populations. However, the part of the song directed towards males is shorter and more repetitive (as observed in individual competitive encounters between males) in non-migratory populations, indicating sedentary populations, are under stronger selection due to male competition. We show for the first time that the intensity of selection pressure from male competition and female choice varies independently between populations with different migratory behaviours. Rapid alterations in the migration patterns of species are thus likely to lead to unexpected consequences for the costs and benefits of sexual signals.

Sexual Selection in the Water Spider: Female Choice and Male-Male Competition

Ethology ◽  
2011 ◽  
Vol 117 (12) ◽  
pp. 1101-1110 ◽  
Author(s):  
Dolores Schütz ◽  
Michael Taborsky
Keyword(s):  
Sexual Selection ◽  
Female Choice ◽  
Male Competition

Sexual selection in pinyon jays I: female choice and male-male competition

1988 ◽  
Vol 36 (4) ◽  
pp. 1038-1047 ◽  
Author(s):  
Kristine Johnson
Keyword(s):  
Sexual Selection ◽  
Female Choice ◽  
Male Competition

scholarly journals Inference of sexual selection from pairwise contests

2020 ◽  
Author(s):  
Thomas Yu ◽  
Andrew G. Clark
Keyword(s):  
Sexual Selection ◽  
Mate Choice ◽  
Mathematical Models ◽  
Female Choice ◽  
Choice Experiments ◽  
Male Competition ◽  
Male Choice ◽  
Leave One Out

AbstractSexual selection, whether mediated by male-male competition, female choice, or male choice, is often realized through a series of pairwise contests. Experimental evolutionists have long applied male-choice and female-choice experiments to quantify the relative mating abilities of genotypes, an important component of fitness. Here, we consider Drosophila mate-choice experiments and apply two mathematical models, the Bradley-Terry and the Élő models, which have been explicitly designed to quantify the merits of contestants and establish a ranking based on results from pairwise contests. Methods such as the Bradley-Terry model and Élő ratings also provide a way to predict the outcome of contests that have not yet taken place. Leave-one-out validation approaches allow us to assess the utility of these models to quantify relative fitnesses, how well the models fit the data, and how well they perform at prediction. After applying these methods to Drosophila mate-choice experiments, we interpret the results in terms of sexual selection, and discuss the implications of departures of the data from good fits to the models.

Sexual Selection by Sperm Competition in Birds: Male-Male Competition or Female Choice?

1994 ◽  
Vol 25 (3) ◽  
pp. 244 ◽  
Author(s):  
Jan T. Lifjeld ◽  
Peter O. Dunn ◽  
David F. Westneat
Keyword(s):  
Sexual Selection ◽  
Sperm Competition ◽  
Female Choice ◽  
Male Competition

Male Competition, Female Choice, and Sexual Selection in Plants

1983 ◽  
pp. 109-149 ◽  
Author(s):  
ANDREW G. STEPHENSON ◽  
ROBERT I. BERTIN
Keyword(s):  
Sexual Selection ◽  
Female Choice ◽  
Male Competition
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