Asymmetric mating interactions drive widespread invasion and displacement in a whitefly
Asymmetric mating interactions drive widespread invasion and displacement in a whitefly
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DOI：
10.1126/science.1149887
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发表时间：
2007-12-14
期刊：
影响因子：
56.9
通讯作者：
Wan, Fang-Hao
中科院分区：
文献类型：
--
作者：
Liu, Shu-Sheng;De Barro, P. J.;Wan, Fang-Hao
行为机制在动物入侵中的作用知之甚少。我们发现，密切相关的，但以前异地遗传群体的烟粉虱，一个单倍体物种，不对称交配之间的相互作用一直是一个驱动力，有助于广泛的入侵和外来人口的位移。我们在中国浙江和澳大利亚昆士兰州进行了长期的野外调查、笼内种群实验和详细的行为观察，以研究入侵过程及其潜在的行为机制。在入侵和位移，我们发现交配频率增加，导致入侵者之间的雌性后代的生产增加，以及减少交配和雌性生产的土著遗传群体。这种不对称的交配相互作用可能是至关重要的，以确定一个单倍二倍体入侵者的能力和其密切相关的土著生物的后果。
The role of behavioral mechanisms in animal invasions is poorly understood. We show that asymmetric mating interactions between closely related but previously allopatric genetic groups of the whiteflyBemisia tabaci, a haplodiploid species, have been a driving force contributing to widespread invasion and displacement by alien populations. We conducted long-term field surveys, caged population experiments, and detailed behavioral observations in Zhejiang, China, and Queensland, Australia, to investigate the invasion process and its underlying behavioral mechanisms. During invasion and displacement, we found increased frequency of copulation leading to increased production of female progeny among the invader, as well as reduced copulation and female production in the indigenous genetic groups. Such asymmetric mating interactions may be critical to determining the capacity of a haplodiploid invader and the consequences for its closely related indigenous organisms.