Sexual Selection, Resource Distribution, and Population Size in Synthetic Sympatric Speciation

2012 ◽  
Author(s):  
Mark Woehrer ◽  
Dean Hougen ◽  
Ingo Schlupp
Keyword(s):  
Sexual Selection ◽  
Population Size ◽  
Resource Distribution ◽  
Sympatric Speciation

scholarly journals Sexual selection can constrain sympatric speciation

2004 ◽  
Vol 271 (1540) ◽  
pp. 687-693 ◽  
Author(s):  
Mark Kirkpatrick ◽  
Scott L. Nuismer
Keyword(s):  
Sexual Selection ◽  
Sympatric Speciation

Ecological versus Sexual Selection Models of Sympatric Speciation: A Synthesis

Selection ◽  
2002 ◽  
Vol 2 (1-2) ◽  
pp. 17-40 ◽  
Author(s):  
G. S. van Doorn ◽  
F. J. Weissing
Keyword(s):  
Sexual Selection ◽  
Sympatric Speciation ◽  
Selection Models

scholarly journals Sexual selection, range size and population size

2012 ◽  
Vol 20 (1) ◽  
pp. 1-25 ◽  
Author(s):  
Anders Pape Møller ◽  
László Zsolt Garamszegi
Keyword(s):  
Sexual Selection ◽  
Population Size ◽  
Extinction Risk ◽  
Range Size ◽  
Sexual Dichromatism ◽  
Common Descent ◽  
Distribution Limits ◽  
Western Palaearctic ◽  
Linear Contrasts ◽  
Average Fitness

Abstract Sexual selection may impose fitness costs on both males and females due to the costs of developing and maintaining exaggerated sexual signals, reducing average fitness in strongly sexually selected species. Such reductions in average fitness could affect local extinction risk and hence distribution range. However, given that both sexually monochromatic and dichromatic species are common and widespread, benefits of sexual selection must be invoked to maintain equilibrium. We tested for differences in breeding range size and population size between monochromatic and dichromatic species of birds in a comparative analysis of species from the Western Palaearctic. In an analysis of standardized linear contrasts of the relationship between sexual dichromatism and range size and population size, respectively, that controlled for similarity among taxa due to common descent, we found no significant relationship. However, when we analyzed carotenoid-based sexual dichromatism sexually dichromatic species had larger distribution areas and higher northernmost distribution limits, but not southernmost distribution limits than sexually monochromatic species. In contrast, melanin-based sexual dichromatism was not significantly associated with range size or population size. Therefore, population density of sexually dichromatic species with carotenoid-based coloration was lower than that of monochromatic species, because dichromatic species had similar population sizes but larger ranges than monochromatic species. These findings suggest that the different physiological roles of pigments associated with sexual dichromatism have effects on total range size of birds.

scholarly journals A TEST AND REVIEW OF THE ROLE OF EFFECTIVE POPULATION SIZE ON EXPERIMENTAL SEXUAL SELECTION PATTERNS

Evolution ◽  
2009 ◽  
Vol 63 (7) ◽  
pp. 1923-1933 ◽  
Author(s):  
Rhonda R. Snook ◽  
Lena Brüstle ◽  
Jon Slate
Keyword(s):  
Sexual Selection ◽  
Population Size ◽  
Effective Population Size ◽  
Effective Population

scholarly journals Sympatric speciation and extinction driven by environment dependent sexual selection

1998 ◽  
Vol 265 (1408) ◽  
pp. 1915-1919 ◽  
Author(s):  
G. S. van Doorn ◽  
A. J. Noest ◽  
P. Hogeweg
Keyword(s):  
Sexual Selection ◽  
Sympatric Speciation
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