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在幼虫生长期间的资源限制导致成年甲虫的飞行倾向更高

Ori Stearns¹, Tomer Urca¹, Eran Gefen²

¹Department of Zoology, Tel Aviv University, Tel Aviv-Yafo, Tel Aviv District, Israel.

Biology letters

|October 28, 2025

概括

较小的果茎挖掘者表现出更高的代谢率和活性,这表明他们具有更强的天生的驱动力来分散. 这挑战了关于飞行成本的假设,并将幼虫状况与成人的分散潜力联系起来.

科学领域:

昆虫学昆虫学是一门学科.
昆虫生理学昆虫生理学
行为生态学行为生态学

背景情况:

果茎 (Batocera rufomaculata) 由于幼虫的环境,成年人体大小的显著变化.
更小的个体惊人地飞越更远的距离,与预期的能源成本相反.
了解这种与大小相关的飞行差异对于分散生态至关重要.

研究的目的:

为了研究飞行倾向和代谢节奏与性别和身体大小相关.
确定Batocera rufomaculata中分散背后的行为和生理驱动因素.
将幼虫生长条件与成人的散播能力联系起来.

主要方法:

在48小时内在封闭场馆测量了飞行启动行为.
在代谢室中评估代谢速率 (MR) 的每日波动.
分析了考虑到性别和体型变化的数据.

主要成果:

甲虫表现出明显的夜间活动的昼夜模式,无论是运动还是MR.
较小的果茎挖掘者在代谢和行为上比较活跃.
没有观察到性别对这些与大小相关的差异有显著的影响.

结论:

较小的Batocera rufomaculata具有更强的天生的分散驱动力,与更高的活动有关.
这项研究为较小个体的增强分散提供了一种行为生理学解释.
影响幼虫大小的环境条件直接影响成人的散播潜力.

关键词:

昼夜节律昼夜节律飞行活动飞行活动休息代谢率休息代谢率缩放,扩展,扩展

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