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捕食者和植被对野生斑马鱼群群的影响

Ishani Mukherjee¹, Anuradha Bhat¹

¹Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India.

Royal Society open science

|September 26, 2024

概括

野生斑马鱼群根据环境因素调整群体行为. 捕食者的线索增加了亚群的大小,而仅仅是植被减少了两极分化,影响了食.

科学领域:

伦理学伦理学伦理学
行为生态学行为生态学
水生生态学水生生态学

背景情况:

动物在自然息地调整社会对生态因素的反应.
了解这些调整对于预测动物在不断变化的环境中的行为至关重要.

研究的目的:

为了研究捕食者线索和植被对野生斑马鱼群行为的影响.
分析子组大小,两极分化和食的变化.

主要方法:

在受控的竞技场环境中对野生斑马鱼群进行实验.
治疗包括植被,捕食者线索,两者,或没有 (控制).
观测和分析了子组大小,小鱼群两极分化和食物摄入.

主要成果:

鱼形成了具有捕食者线索的大小小组;小组大小与具有捕食者线索的植被存在时的对照组相似.
沙两极分化在开放的竞技场和捕食者线索中很高,但仅仅由植被减少了.
当捕食者线索和/或植被存在时,食物摄入量显著下降.
接受掠食者暗示治疗的个体更有可能留在群体中.

结论:

斑马鱼群体在应对生态因素时表现出复杂的行为可塑性.
环境变化,如捕食者和植被的存在,显著改变社会结构和食效率.
这些发现凸显了动物行为适应环境变化的能力.

关键词:

行为可塑性行为可塑性群体行为群体行为捕食掠食掠食掠食植物生长植物生长野生斑马鱼是一种野生斑马鱼.

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