两种反机制参与了切叶的叶片碎片大小的控制
Daniela Römer1, Rebecca Exl1, Flavio Roces1
1Department of Behavioural Physiology and Sociobiology, Biocenter, University of Würzburg, Am Hubland, 97074 Würzburg, Germany.
The Journal of experimental biology
|June 22, 2023
概括
剪叶使用从后腿与叶边接触和头部运动的感觉反来精确控制他们收获的叶片碎片的大小. 这允许行为可塑性,以应对不同的叶子性.
科学领域:
- 伦理学 伦理学 伦理学
- 生物力学 生物力学
- 感官生态学 感官生态学
背景情况:
- 多态切叶 (Atta sexdens) 收获叶片,片段大小与工人身体大小相关.
- 工人表现出行为可塑性,根据叶子的性调整切割,但对轨迹控制的感觉机制尚不清楚.
研究的目的:
- 为了研究剪叶用来控制切割轨迹和确定碎片大小的感觉信息.
- 为了确定腿边接触和头部运动对碎片大小调节的相对贡献.
主要方法:
- 实验室实验使用Atta sexdens工人切割不同厚度的标准化伪叶.
- 量化切割行为和身体的覆盖范围 (下到后腿的塔尔苏斯距离).
- 对腿边接触的实验操纵和关节机械感知毛发的切除.
主要成果:
- 防止后腿与叶边缘接触,导致更小的碎片,表明依赖这种感官输入.
- 仍然可以在没有腿边接触的情况下切断碎片,这表明了额外的感觉机制.
- 部机械感知毛发的切除单独没有影响碎片大小,但与防止边缘接触相结合,导致轨迹控制的丧失.
结论:
- 切叶利用后腿与叶边缘接触的感觉反和侧向头部曲的组合来控制切割轨迹.
- 这种集成的传感系统允许精确调节碎片大小和适应性食行为.
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