Cordero C, Eberhard W G
Instituto de Ecología, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, Distrito Federal, México.
J Evol Biol. 2003 Jan;16(1):1-6. doi: 10.1046/j.1420-9101.2003.00506.x.
We contrast some recent uses of the concept of male-female conflict, with the type of conflict that is inherent in traditional Darwinian female choice. Females in apparent conflict situations with males may suffer reduced lifetime reproduction, but nevertheless benefit because they obtain sons with superior manipulative abilities. Female defences against male manipulations may not be 'imperfect' because of inability to keep pace with male evolution, but in order to screen males and favour those that are especially good manipulators. We examine the consequences of these ideas, and of the difficulties of obtaining biologically realistic measures of female costs, for some recent theoretical and empirical presentations of male-female conflict ideas, and find that male-female conflict in the new sense is less certain than has been commonly supposed. Disentangling previous sexual selection ideas and the new conflict of interest models will probably often be difficult, because the two types of payoffs are not mutually exclusive.
我们将近期对男女冲突概念的一些应用,与传统达尔文式雌性选择中固有的冲突类型进行对比。处于与雄性明显冲突情境中的雌性,其终生繁殖能力可能会降低,但仍能从中受益,因为它们能获得具有更强操控能力的儿子。雌性对雄性操控的防御可能并非因无法跟上雄性进化的步伐而“不完善”,而是为了筛选雄性并青睐那些特别擅长操控的雄性。我们研究了这些观点的影响,以及在一些近期关于男女冲突观点的理论和实证阐述中,获取生物学上现实的雌性成本衡量指标的困难,并发现新意义上的男女冲突并不像通常认为的那样确定。区分先前的性选择观点和新的利益冲突模型往往可能很困难,因为这两种收益并非相互排斥。