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大型甲虫的气管过度测量和空间限制.

Tomer Urca¹, Gal Ribak², Eran Gefen³

¹School of Zoology, Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel.

Journal of insect physiology

|May 22, 2024

概括

昆虫气管体积的尺寸与身体大小相对比较高. 更大的雌性甲虫具有更高的气管气体导电性,可能支持孕妇飞行,尽管气管体积超过胸部尺寸.

关键词:

一个全度测量法.身体质量身体质量科莱奥普特拉 (科莱奥普特拉) 是一种小鸟类.蛋装载蛋装载气体交易所气体交易所氧气导电性氧气导电性氧气导电性气管的体积气管的体积

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科学领域:

昆虫生理学昆虫生理学
比较生理学比较生理学
呼吸系统呼吸系统

背景情况:

昆虫利用气管系统进行气体交换,气管体积与身体质量以超度计量.
之前的研究表明,气管体积在物种和发育阶段与昆虫大小不成比例地增加.

研究的目的:

为了研究成年气管体积 (Vtr) 在Batocera rufomaculata (Cerambicidae; Coleoptera) 的六倍体质变化中的全度.
探索性别和生殖状况对气管气体导电性和氧气运输安全边缘的影响.

主要方法:

研究了成人B. rufomaculata.体质量 (Mb) 和气管体积 (Vtr) 之间的关系.
评估了与Mb和生殖状态 (性别,孕妇) 相关的气管气体导电性.
关于较大个体和孕妇中氧气运输结构限制的测试假设.

主要成果:

在成年B. rufomaculata的两种性别中报告过超标气管生长,平均质量指数为1.42 ± 0.09.
气管气体导电性独立于Mb和生殖状态,但女性的导电性明显高于男性.
发现气管体积 (Vtr) 在较大的B. rufomaculata. 中超过胸部尺寸.

结论:

在B. rufomaculata的超标气管生长与之前的发现一致.
在女性中,更高的气管导电性可能支持怀孕期间飞行功率需求的增加.
更大的个体中气管的胸腔尺寸超出了空气管的尺寸,这可以解释飞行肌肉的缩放和长途飞行性能的降低.