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Dynamics of animal movement in an ecological context: dragonfly wing damage reduces flight performance and predation success

机译:在生态环境中动物运动的动态:蜻蜓的机翼损坏会降低飞行性能和捕食成功

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摘要

Much of our understanding of the control and dynamics of animal movement derives from controlled laboratory experiments. While many aspects of animal movement can be probed only in these settings, a more complete understanding of animal locomotion may be gained by linking experiments on relatively simple motions in the laboratory to studies of more complex behaviours in natural settings. To demonstrate the utility of this approach, we examined the effects of wing damage on dragonfly flight performance in both a laboratory drop–escape response and the more natural context of aerial predation. The laboratory experiment shows that hindwing area loss reduces vertical acceleration and average flight velocity, and the predation experiment demonstrates that this type of wing damage results in a significant decline in capture success. Taken together, these results suggest that wing damage may take a serious toll on wild dragonflies, potentially reducing both reproductive success and survival.
机译:我们对动物运动的控制和动力学的大部分理解来自受控的实验室实验。虽然只能在这些环境中探究动物运动的许多方面,但通过将实验室中相对简单的运动的实验与自然环境中更复杂的行为的研究联系起来,可以获得对动物运动的更完整的了解。为了证明这种方法的实用性,我们在实验室落下逃生响应和更自然的空中捕食环境中,研究了机翼损坏对蜻蜓飞行性能的影响。实验室实验表明,后翼区域损失会降低垂直加速度和平均飞行速度,而掠食实验表明,这种机翼损坏会导致捕获成功率显着下降。综上所述,这些结果表明,机翼的损坏可能会给野生蜻蜓造成严重的伤害,并可能降低繁殖成功率和生存率。

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