Male competition fitness landscapes predict both forward and reverse speciation

2015 ◽  
Vol 19 (1) ◽  
pp. 71-80 ◽  
Author(s):  
Jason Keagy ◽  
Liliana Lettieri ◽  
Janette W. Boughman
Keyword(s):  
Male Competition ◽  
Fitness Landscapes ◽  
Reverse Speciation

scholarly journals Combined cues of male competition influence spermatozoal investment in a moth

2020 ◽  
Vol 34 (6) ◽  
pp. 1223-1234
Author(s):  
Junyan Liu ◽  
Yujing Zhang ◽  
Xia‐Lin Zheng ◽  
Xiong Z. He ◽  
Qiao Wang
Keyword(s):  
Male Competition

scholarly journals Protogyny in Autumn Migration: Do Male Birds ”Play Chicken”?

The Auk ◽  
2005 ◽  
Vol 122 (1) ◽  
pp. 71-81 ◽  
Author(s):  
Alexander M. Mills
Keyword(s):  
Migratory Birds ◽  
Indirect Selection ◽  
Male Competition ◽  
Autumn Migration ◽  
Direct Selection ◽  
Differential Migration ◽  
The North ◽  
Parsimonious Explanation ◽  
Ground Conditions ◽  
Wintering Ground

AbstractProtandry, the earlier arrival of males than of females on breeding areas, occurs in many taxa, including many migratory birds. Numerous hypotheses have been generated to explain protandry. Using bird-banding records, I show that protogyny, the earlier migration of females, frequently occurs in the autumn, though it is less universal and less dramatic than spring protandry. In one species, it occurs in both hatch-year and adult birds. When (1) spring and autumn, (2) departures and arrivals, and (3) breeding and wintering ground conditions are considered, hypotheses generated only to explain spring protandry can be more thoroughly evaluated. Using that approach, the most parsimonious explanation of differential migration between the sexes explains earlier male arrival in spring and later male departure in autumn through either (1) indirect selection operating on intrasexual male competition for territories or (2) direct selection operating on intersexual relations requiring males to be present on breeding territories when females are present. In autumn-protogynous species, males may ”play chicken,” balancing the benefits of remaining longer than females and protecting territories for subsequent years against the costs of remaining in the north under deteriorating conditions and delaying the acquisition of a good winter territory.Protogynie et migration automnale: Est-ce que les mâles ”jouent les dégonflés”?

scholarly journals The fitness landscapes of translation

2021 ◽  
Vol 569 ◽  
pp. 125768
Author(s):  
Mario Josupeit ◽  
Joachim Krug
Keyword(s):  
Fitness Landscapes

scholarly journals Larval competition risk shapes male–male competition and mating behavior in an anuran

2016 ◽  
pp. arw100 ◽  
Author(s):  
Hugo Cayuela ◽  
Thierry Lengagne ◽  
Bernard Kaufmann ◽  
Pierre Joly ◽  
Jean-Paul Léna
Keyword(s):  
Mating Behavior ◽  
Male Competition ◽  
Larval Competition
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