The complexity of male reproductive success: effects of nutrition, morphology, and experience
The complexity of male reproductive success: effects of nutrition, morphology, and experience
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DOI：
10.1093/beheco/aru240
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发表时间：
2015-03-01
影响因子：
2.4
通讯作者：
Bonduriansky, Russell
中科院分区：
文献类型：
--
作者：
Fricke, Claudia;Adler, Margo I.;Bonduriansky, Russell
许多研究试图通过量化单个性状（如装饰物或行为）来解释雄性生殖成功的变化，但雄性生殖能力可能由许多相互作用的性状决定。虽然发育营养往往是成年体型和第二性征表达的主要决定因素，其他因素，如残留的形状变化和先前的经验，也可能对男性生殖成功施加独立的影响。在这里，我们研究了如何男性sexualtrait表达，操纵幼虫的饮食质量，并在直接的男性-男性竞争的经验，影响男性生殖成功的性二型夹竹桃飞Telostylinus angusticollis。在与体型相匹配的雄性竞争中，触角相对较长（用作武器）的个体更有可能获胜，也更快地实现交配。出乎意料的是，男性提出了一个穷人的幼虫饮食和那些以前失去了男性男性的战斗似乎投资更多的繁殖的某些方面所示的交配持续时间较长，随后的蛋孵化率较高。我们的研究结果表明，男性生殖成功的复杂性，表明男性发育营养以及形态变异，和以前的成年竞争经验相互作用，以复杂的方式影响整体生殖性能。
Many studies have attempted to account for variation in male reproductive success by quantifying a single trait such as an ornament or a behavior, but male reproductive performance may be determined by a number of interacting traits. Although developmental nutrition is often a major determinant of adult body size and secondary sexual trait expression, other factors-such as residual shape variation and prior experience-may also exert independent effects on male reproductive success. Here, we studied how male sexualtrait expression, as manipulated by larval diet quality, and experience in direct male-male competition, affected male reproductive success in the sexually dimorphic neriid fly Telostylinus angusticollis. Among competing males matched by body size, individuals with relatively longer antennae (used as weapons) were more likely to win and also achieved matings faster. Unexpectedly, males reared on a poor larval diet and those that had previously lost in male-male combat appeared to invest more in some aspects of reproduction as indicated by a longer mating duration and a higher subsequent egg-hatching rate. Our findings demonstrate the complexity of male reproductive success, indicating that male developmental nutrition as well as morphological variation, and prior adult competitive experience interact in a complex manner to influence overall reproductive performance.