叶雄性在振动介导的伴侣定位中补偿不清晰的方向线索
Jernej Polajnar1, Anka Kuhelj2, Rok Janža2
1Department of Organisms and Ecosystems Research, National Institute of Biology, Večna pot 111, Ljubljana, Slovenia. jernej.polajnar@nib.si.
Scientific reports
|June 1, 2023
概括
面对振动噪音的叶雄性通过减少信号力度表现出高效的交配行为. 他们适应了搜索策略,在复杂的环境中优先考虑速度而不是详细的定向线索.
科学领域:
- 动物行为 动物行为
- 生物声学是一种生物声学.
- 昆虫生态学 昆虫生态学
背景情况:
- 节肢动物的振动信号产生在能源上是昂贵的,并且受到环境噪音和基板特性的挑战.
- 了解关节动物如何克服交配行为中的这些挑战对于进化和生态研究至关重要.
研究的目的:
- 调查振动噪声和基质挑战对叶跳 (Aphrodes makarovi) 交配行为的影响.
- 评估雄性叶在不同噪音条件下搜索效率,信号力度和生理反应.
主要方法:
- 雄性阿弗罗德斯·马卡罗维 (Aphrodes makarovi) 被暴露在自然基板上的不同类型的振动噪声中.
- 男性被挑战定位一个女性播放信号源.
- 对线粒体结构和氧化应激的生化标志物进行了分析,与信号力度相关.
主要成果:
- 与对照组相比,暴露于噪音的雄性表现出类似的搜索成功,但信号努力减少.
- 播放男性和女性的双重曲调促进了卫星的行为,使目标在没有信号的情况下定位.
- 在高信号的男性中观察到线粒体结构的改变,这表明细胞损伤,但没有发现与氧化应激标志物的相关性.
- 信号传输分析揭示了模两可的振幅梯度,这可能解释了较低的搜索成功率,但表明了行为适应.
结论:
- 叶雄可以通过调整他们的搜索策略来适应杂的振动环境,强调近场定位的速度.
- 行为可塑性使雄性能够弥补不清楚的方向线索,在具有挑战性的声学条件下优化交配成功.
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