温度升高对欧洲玉米的繁殖特征的影响取决于时间
Brittany A Velikaneye1, Genevieve M Kozak1
1Department of Biology, University of Massachusetts Dartmouth, Dartmouth, MA, United States.
Journal of evolutionary biology
|July 22, 2024
概括
高温影响欧洲玉米虫的繁殖,在不同生命阶段的综合作用减少了蛋群. 了解这些累积的热影响对于预测昆虫对气候变化的反应至关重要.
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:
- 湿热菌的热耐受性因生命阶段和本体发生而有所不同.
- 升高的温度可以对外热虫的发育和繁殖产生传递或累积的影响.
- 在Lepidoptera中,对发育热环境的繁殖特征敏感性尚未得到充分理解.
研究的目的:
- 研究不同生命阶段的高温如何影响欧洲玉米 (Ostrinia nubilalis) 的繁殖.
- 为了确定温度的影响是否是特定于阶段的,在幼虫,幼和成年阶段的转移或添加.
主要方法:
- 在幼虫,幼或成人的阶段,欧洲玉米被单独或添加地暴露在高温 (28°C) 或控制温度 (23°C) 中.
- 测量了繁殖产量,包括蛋集群的数量.
- 发育时间,如成年化同步,也被评估.
主要成果:
- 在幼和成年阶段暴露于高温,显著减少了产生的卵的数量.
- 单阶段的温度暴露没有显著影响整体生殖产出.
- 升高的幼温度加速过渡到成年,而升高的幼温度,单独或与幼温度相结合,破坏了成年化同步.
结论:
- 在发育过程中温度升高会通过转移和添加效应改变欧洲玉米的繁殖.
- 热环境在所有生命阶段的累积影响对于预测昆虫对热浪的繁殖反应至关重要.
- 跨昆虫生命阶段的附加热效应可能比以前认为的更为常见,需要对影响评估采取整体方法.
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