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The Group-Level Consequences Of Sexual Conflict In Multigroup Populations, Omar Tonsi Eldakar, Andrew C. Gallup
The Group-Level Consequences Of Sexual Conflict In Multigroup Populations, Omar Tonsi Eldakar, Andrew C. Gallup
Biology Faculty Articles
In typical sexual conflict scenarios, males best equipped to exploit females are favored locally over more prudent males, despite reducing female fitness. However, local advantage is not the only relevant form of selection. In multigroup populations, groups with less sexual conflict will contribute more offspring to the next generation than higher conflict groups, countering the local advantage of harmful males. Here, we varied male aggression within-and between-groups in a laboratory population of water striders and measured resulting differences in local population growth over a period of three weeks. The overall pool fitness (i.e., adults produced) of less aggressive pools exceeded …
Population Structure Influences Sexual Conflict In Wild Populations Of Water Striders., Omar Tonsi Eldakar, Michael J. Dlugos, Galen P. Holt, David Sloan Wilson, John W. Pepper
Population Structure Influences Sexual Conflict In Wild Populations Of Water Striders., Omar Tonsi Eldakar, Michael J. Dlugos, Galen P. Holt, David Sloan Wilson, John W. Pepper
Biology Faculty Articles
In sexual conflict, aggressive males frequently diminish the long-term reproductive success of females in efforts to gain a short-term advantage over rival males. This short-term advantage can selectively favour high-exploitation males. However, just as the over-exploitation of resources can lead to local extinction, the over-exploitation of females in the form of harassment by aggressive males can yield similar consequences resulting in reduced female fecundity, increased female mortality and overall decline in mating activity. This outcome may often be prevented by selection acting at multiple levels of biological organization. Directional selection favouring aggressive exploitation within groups can be balanced by directional …
The Role Of Multilevel Selection In The Evolution Of Sexual Conflict In The Water Strider Aquarius Remigis, Omar Tonsi Eldakar, David Sloan Wilson, Michael J. Dlugos, John W. Pepper
The Role Of Multilevel Selection In The Evolution Of Sexual Conflict In The Water Strider Aquarius Remigis, Omar Tonsi Eldakar, David Sloan Wilson, Michael J. Dlugos, John W. Pepper
Biology Faculty Articles
In evolution, exploitative strategies often create a paradox in which the most successful individual strategy “within” the group is also the most detrimental strategy “for” the group, potentially resulting in extinction. With regard to sexual conflict, the overexploitation of females by harmful males can yield similar consequences. Despite these evolutionary implications, little research has addressed why sexual conflict does not ultimately drive populations to extinction. One possibility is that groups experiencing less sexual conflict are more productive than groups with greater conflict. However, most studies of sexual conflict are conducted in a single isolated group, disregarding the potential for selection …