Temporal effects of multiple mating on components of fitness in the two-spot ladybird, Adalia bipunctata (Coleoptera: Coccinellidae)
Temporal effects of multiple mating on components of fitness in the two-spot ladybird, Adalia bipunctata (Coleoptera: Coccinellidae)
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DOI：
10.14411/eje.2007.058
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发表时间：
2007-07
影响因子：
5.8
通讯作者：
P. Haddrill;D. Shuker;S. Mayes;M. Majerus
中科院分区：
文献类型：
--
作者：
P. Haddrill;D. Shuker;S. Mayes;M. Majerus
到目前为止，昆虫已经提供了许多关于多次交配可能的成本和好处的最佳证据，在这里，我们通过试图在两点瓢虫Adalia bipot tata中复制高度混杂的交配系统，来研究一夫多妻制的好处。我们比较了雌性与一只雄性多次交配和雌性与多只雄性交配相同次数的繁殖成功的时间模式，发现后代产量和孵化率随时间的变化存在暂时性差异。我们的数据表明，在某些情况下，一夫多妻制的女性会从多次交配中受益，但模式是复杂的。如果我们想要充分了解一夫多妻制的演变，我们就有必要了解交配的成本和收益是如何随着时间的推移而增加的。
Insects have provided much of the best evidence to date concerning possible costs and benefits of multiple mating, and here we investigate the benefits of polyandry in the two-spot ladybird, Adalia bipunctata, by attempting to replicate the highly promiscuous mating system in this species. We compared the temporal pattern of reproductive success of females mated multiple times to one male with that of females mated an equal number of times to multiple males, and found transient differences in offspring production and hatch rate over time. Our data suggest that polyandrous females benefit from multiple mating in some circumstances, but the patterns are complex. Following how both the costs and benefits to mating accrue over time will be necessary if we are to fully understand why polyandry evolves.