菲诺型塑性:捕食者诱导的鱼翅尺寸,黑暗和显示行为中的捕食者诱导的塑性
Kaj Hulthén1, Jerker Vinterstare1, P Anders Nilsson1
1Aquatic Ecology Unit, Department of Biology, Lund University, Lund, Sweden.
The Journal of animal ecology
|June 20, 2024
概括
捕食风险会导致鱼的物理变化,导致鱼变大,颜色变暗. 这种捕食者诱导的可塑性提高了逃跑性能,并通过改变鱼类来威捕食者.
科学领域:
- 进化生物学是进化的生物学.
- 动物行为 动物行为
- 形态的可塑性 形态的可塑性
背景情况:
- 形态对于鱼类的运动至关重要,它影响了与健身相关的行为,如食和避免捕食者.
- 羽形态与掠食风险之间的联系已经确立,但由于感知风险,羽形态的终身调整 (可塑性) 仍然不清楚.
研究的目的:
- 为了研究捕食者诱导的形塑性在形态和色彩在鱼 (Carassius carassius).
- 为了评估背表现行为的变化,以应对被认为的掠食风险.
主要方法:
- 在受控掠食风险下的鱼中,量化结构大小为五条 (存在/不存在,Esox lucius).
- 评估了背色彩的变化,并量化了行为试验中显示的背面积.
主要成果:
- 暴露于被认为的掠食风险的十字鱼表现出明显更大的翅膀.
- 暴露于捕食者的鱼类表现出增加的背黑暗,并积极显示出更大的翅膀面积.
- 在尺寸,色彩和显示行为方面观察到表型可塑性,以应对掠食风险.
结论:
- 捕食者诱导的翅膀扩大增强了鱼的逃生游泳表现.
- 翅膀尺寸可塑性,色彩和显示行为的协同进化可能会阻止口限制的捕食者.
- 捕食风险在鱼翅的发展和进化中起着重要作用.
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