scholarly journals Sexual selection in a hermaphroditic plant

Nature ◽  
1983 ◽  
Vol 305 (5936) ◽  
pp. 706-707 ◽  
Author(s):  
David C. Queller
Keyword(s):  
Sexual Selection ◽  
Hermaphroditic Plant

scholarly journals Fixation of Advantageous Alleles in Partially Self-Fertilizing Populations: The Effect of Different Selection Modes

Genetics ◽  
2000 ◽  
Vol 154 (2) ◽  
pp. 813-821 ◽  
Author(s):  
Christian Damgaard
Keyword(s):  
Sexual Selection ◽  
Population Size ◽  
Diffusion Approximation ◽  
Selective Advantage ◽  
Fixation Probability ◽  
Selfing Rate ◽  
Male Fitness ◽  
Viability Selection ◽  
Fecundity Selection ◽  
Hermaphroditic Plant

Abstract The expected fixation probability of an advantageous allele was examined in a partially self-fertilizing hermaphroditic plant species using the diffusion approximation. The selective advantage of the advantageous allele was assumed to be increased viability, increased fecundity, or an increase in male fitness. The mode of selection, as well as the selfing rate, the population size, and the dominance of the advantageous allele, affect the fixation probability of the allele. In general it was found that increases in selfing rate decrease the fixation probability under male sexual selection, increase fixation probability under fecundity selection, and increase when recessive and decrease when dominant under viability selection. In some cases the highest fixation probability of advantageous alleles under fecundity or under male sexual selection occurred at an intermediary selfing rate. The expected mean fixation times of the advantageous allele were also examined using the diffusion approximation.

The katydid that was: the tananá, stridulation, Henry Walter Bates and Charles Darwin

2014 ◽  
Vol 41 (1) ◽  
pp. 131-140 ◽  
Author(s):  
Claudio J. Bidau
Keyword(s):  
Sexual Selection ◽  
Charles Darwin ◽  
Bush Cricket

The Amazonian bush-cricket or katydid, Thliboscelus hypericifolius (Orthoptera: Tettigoniidae: Pseudophyllinae), called tananá by the natives was reported to have a song so beautiful that they were kept in cages for the pleasure of listening to the melodious sound. The interchange of letters between Henry Walter Bates and Charles Darwin regarding the tananá and the issue of stridulation in Orthoptera indicates how this mysterious insect, which seems to be very rare, contributed to the theory of sexual selection developed by Darwin.

Sexual selection, evolution of play and entertainment

2005 ◽  
Vol 3 (2) ◽  
pp. 141-157 ◽  
Author(s):  
Peter Ohler ◽  
Gerhild Nieding
Keyword(s):  
Sexual Selection
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