Distinct behavioural strategies underlying asymmetric mating interactions between invasive and indigenous whiteflies
Distinct behavioural strategies underlying asymmetric mating interactions between invasive and indigenous whiteflies
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DOI：
10.1111/eea.12016
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发表时间：
2013-01
影响因子：
1.9
通讯作者：
Jun-Bo Luan;P. D. De Barro;Yong-ming Ruan;Shu-Sheng Liu
中科院分区：
文献类型：
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作者：
Jun-Bo Luan;P. D. De Barro;Yong-ming Ruan;Shu-Sheng Liu
了解动物交配策略可以深入了解交配行为、物种形成和物种竞争相互作用的演变。我们之前的研究表明，全球分布的烟粉虱（Gennadius）（半翅目：粉虱科）复合体的入侵物种和本地物种之间的不对称交配相互作用有助于入侵和迁移。在这里，我们重新详细观察了之前研究中的交配行为和行为交互的视频记录，并对这里获得的新数据和之前报告的数据的某些方面进行了综合分析。我们比较了来自中国和澳大利亚这两个地理区域的入侵粉虱物种和本土同类竞争者的交配策略。我们发现，在这两个地区，入侵物种的雌性比本地物种的交配倾向更高。此外，入侵物种的雌性会随着雄性求偶次数的增加而增加交配频率。与本地物种的雄性相比，入侵物种更有可能在单位时间内求爱并打断求偶配对，而且它们的交配持续时间也较短。此外，入侵物种的雄性表现出交配后的保护行为，而本地物种则没有。入侵物种和本地物种表现出的不同交配策略可能是它们不对称交配相互作用的进化基础。交配策略的这种差异赋予入侵粉虱物种入侵和取代本地粉虱竞争者的能力。
Knowledge of animal mating strategy may provide insight into the evolution of mating behaviour, speciation, and species competition interactions. Our previous study showed that asymmetric mating interactions between invasive and indigenous species of the worldwide distributed whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) complex contribute to invasion and displacement. Here, we reobserved in detail the video recordings of mating behaviour and behavioural interactions of a previous study and did an integrated analysis on the new data obtained here and some aspects of the data reported earlier. We compared the mating strategies of an invasive whitefly species and an indigenous congeneric competitor from each of two geographic regions, China and Australia. We found that in both regions, females of the invasive species had higher propensity to copulate than those of the indigenous species. In addition, females of the invasive species increased their frequency of copulation in response to increases in courting by males. Compared with males of the indigenous species, those of the invasive species were more likely to court per unit time as well as to interrupt courting pairs, and they also exhibited shorter durations of copulation. In addition, males of the invasive species exhibited post‐copulatory guarding behaviour, whereas those of the indigenous species did not. The different mating strategies exhibited by the invasive and indigenous species may be the evolutionary basis of their asymmetric mating interactions. Such differences in mating strategies confer on the invasive whitefly species the capacity to both invade and displace indigenous whitefly competitors.