Nectar amino acids enhance reproduction in male butterflies
Nectar amino acids enhance reproduction in male butterflies
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DOI：
10.1007/s00442-012-2395-8
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发表时间：
2013-01-01
期刊：
影响因子：
2.7
通讯作者：
Erhardt, Andreas
中科院分区：
文献类型：
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作者：
Cahenzli, Fabian;Erhardt, Andreas
经过30多年的研究，最近发现花蜜中的氨基酸可以增加雌性蝴蝶的繁殖力。然而，花蜜中氨基酸对雄蝶繁殖的影响却很少有人关注。在这里，我们表明，幼虫的食物条件（富氮与氮贫宿主植物）和成人的饮食质量（花蜜或不含氨基酸）的影响量的消耗花蜜在Coenophapha pamphilus男性。此外，氨基酸的花蜜饮食的男性增加后代的幼虫孵化质量，无论父亲的幼虫储备。我们的研究考虑了雄性蝴蝶的整个生殖周期，也考虑了雌性在将雄性营养物质传递给后代中的作用，因为雄性的实现生殖是通过婚姻礼物间接检查的，通过雌性的表现。通过这种全面的方法，我们首次证明了花蜜氨基酸可以提高雄性蝴蝶的繁殖能力，支持了花蜜氨基酸通常可以提高蝴蝶适应性的旧假设。
After over 30 years of research, it was recently shown that nectar amino acids increase female butterfly fecundity. However, little attention has been paid to the effect of nectar amino acids on male butterfly reproduction. Here, we show that larval food conditions (nitrogen-rich vs. nitrogen-poor host plants) and adult diet quality (nectar with or without amino acids) affected the amount of consumed nectar in Coenonympha pamphilus males. Furthermore, amino acids in the nectar diet of males increased progeny's larval hatching mass, irrespective of paternal larval reserves. Our study takes the whole reproductive cycle of male butterflies into account, and also considers the role of females in passing male nutrients to offspring, as males' realized reproduction was examined indirectly via nuptial gifts, by female performance. With this comprehensive approach, we demonstrate for the first time that nectar amino acids can improve male butterfly reproduction, supporting the old postulate that nectar amino acids generally enhance butterfly fitness.