飞行期间的能源使用影响山地松树甲虫半化学反应
L Petro1, A E Musso2, M L Evenden2
1Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada. lpetro@ualberta.ca.
Journal of chemical ecology
|May 17, 2025
概括
飞行练习会影响山甲虫 (Dendroctonus ponderosae; MPB) 的行为. 精力紧张的女性MPB对主机树的线索表现出更高的反应,影响其分散和传播.
科学领域:
- 生态生态学 生态生态学
- 昆虫学 昆虫学是一门学科.
- 气候变化生物学 气候变化生物学
背景情况:
- 全球气候变化促进了昆虫害虫范围的扩大,例如山甲虫 (MPB).
- MPB的分散和宿主殖民对于人口的扩散至关重要,但涉及显著的能源成本.
- 以前的研究表明,飞行活动可能会影响MPB对半化学品的反应,但缺乏经验证据.
研究的目的:
- 研究飞行练习对MPB对半化学品的行为和天线反应的影响.
- 测试假设,飞行期间的能源消耗会影响对宿主挥发物和聚合费洛蒙的后续反应.
主要方法:
- 两个嗅觉仪实验模拟先驱和加入甲虫对半化学品的反应.
- 电子天线图生物试验,以评估女性MPB对飞行后α-pinene的天线敏感性.
- 评估甲虫的身体状况 (脂质含量) 以及它与行为反应的相关性.
主要成果:
- 由于能量消耗,女性MPB在较低的身体条件下,在飞行后对宿主半化学物质表现出更强烈的行为反应.
- 女性MPB的脂肪含量增加与对宿主挥发性α-pinene的增强天线反应相关.
- 男性MPB对半化学品的行为反应没有受到飞行炼或身体状况的显著影响.
结论:
- 飞行和由此产生的身体状况显著影响女性MPB对半化学线索的导向,影响个体的分散.
- 研究结果表明,将个体变异性纳入MPB分散模型对于预测气候变化中的传播至关重要.
- 了解这些行为转变对于管理MPB种群在其不断扩大的范围至关重要.
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