Male moths optimally balance take-off thoracic temperature and warm-up duration to reach a pheromone source quickly.
Male moths optimally balance take-off thoracic temperature and warm-up duration to reach a pheromone source quickly.
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DOI：
10.1016/j.anbehav.2014.09.031
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发表时间：
2014-12-01
期刊：
影响因子：
2.5
通讯作者：
Goller, Franz
中科院分区：
文献类型：
--
作者：
Crespo, Jose G.;Vickers, Neil J.;Goller, Franz
关键词：
动物的活动，如觅食和繁殖，受到如何有效分配能量和时间的决定的限制。总的来说，雄蛾在繁殖上的投入比雌蛾少，但它们被认为是在争夺雌蛾，雌蛾通过释放性信息素来宣传交配的准备。然而，在雄蛾能够跟随信息素之前，它们通常需要通过颤抖来加热它们的飞行肌肉，以产生足够的动力来持续飞行。在这里，我们表明，玉米实夜蛾男性的女性信息素在高环境温度下的感觉起飞与更高的胸部温度，颤抖的时间更短，升温速度比男性在较低的环境温度下测试。这些更高的起飞温度转化为更高的空速，强调了胸部温度对飞行性能的重要性。此外，较短的组合持续时间的热身和信息素介导的optomotor anemotaxis是一致的想法，即男性从事争夺竞争的女性在自然界中。我们的研究结果强烈表明，雄蛾最大限度地减少感知女性的信息素信号之间的时间，并根据环境温度条件下，通过优化温度调节行为和温度依赖的飞行性能到达源。我们的研究结果表明，飞蛾从事快速飞行启动和次优飞行性能之间的权衡表明，感觉运动控制机制，涉及一个复杂的相互作用与热环境。
Animal activities, such as foraging and reproduction, are constrained by decisions about how to allocate energy and time efficiently. Overall, male moths invest less in reproduction than females, but they are thought to engage in a scramble competition for access to females that advertise readiness to mate by releasing sexual pheromones. However, before male moths can follow the pheromone, they often need to heat their flight muscles by shivering to produce sufficient power for sustained flight. Here, we show that Helicoverpa zea males that sense the female pheromone at high ambient temperatures take off with higher thoracic temperature, shiver for less time and warm up faster than males tested at lower ambient temperatures. These higher take-off temperatures translate into higher airspeeds, underscoring the importance of thoracic temperature for flight performance. Furthermore, shorter combined duration for warm-up and pheromone-mediated optomotor anemotaxis is consistent with the idea that males engage in scramble competition for access to females in nature. Our results strongly suggest that male moths minimize the time between perceiving the female's pheromone signal and arriving at the source by optimizing thermoregulatory behaviour and temperature-dependent flight performance in accordance with ambient temperature conditions. Our finding that moths engage in a trade-off between rapid flight initiation and suboptimal flight performance suggests a sensorimotor control mechanism that involves a complex interaction with the thermal environment.
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影响因子：
64.8
作者：
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通讯作者：
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作者：
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信息素介导的雄性飞蛾飞行前热身行为的调节。
DOI：
10.1242/jeb.067215
发表时间：
2012-07-01
期刊：
The Journal of experimental biology
影响因子：
--
作者：
Crespo JG;Goller F;Vickers NJ
通讯作者：
Vickers NJ