淡水掠食者眼睛大小变化的环境和生态驱动因素:觅食与捕食风险之间的权衡

IF 4.6 1区 环境科学与生态学 Q1 ECOLOGY Functional Ecology Pub Date : 2024-09-06 DOI:10.1111/1365-2435.14655
Matilda L. Andersson, Kristin Scharnweber, Peter Eklöv
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引用次数: 0

摘要

在许多鱼类物种中都观察到眼睛大小和形状的变化。由于眼睛大小与视觉敏锐度呈正相关,较大的眼睛应有利于觅食和发现捕食者。然而,很少有研究考察眼睛形态的变化与湖泊条件复杂性的关系,包括环境干扰以及捕食和竞争的空间变化。由于气候变化会导致视觉气候退化,褐变、浑浊和结构复杂性的变化会对捕食风险下觅食鱼类的视觉敏锐度提出不同的要求,因此此类测试尤为重要。在这项研究中,我们测试了来自 14 个湖泊沿岸和浮游栖息地的 667 条水生掠食性鲈鱼(Perca fluviatilis)眼睛大小的变化。由于鱼类觅食与视觉条件高度相关,我们使用塞奇水深来评估湖泊系统视觉气候的影响,并研究了眼睛大小变化与浮游资源对个体食物的贡献和捕食风险的关系。Secchi深度、浮游生物对食物的贡献以及食鱼动物的比例对眼睛大小有显著影响。这些变化结果表明,视觉气候、捕食景观和食物等湖泊环境是这种食肉动物眼睛大小变化的主要因素。由于许多鱼类物种在觅食和捕食风险之间进行权衡,未来的研究将显示种内和种间相互作用的复杂性是否会导致淡水鱼眼睛大小的变化。在期刊博客上免费阅读本文的通俗摘要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Environmental and ecological drivers of eye size variation in a freshwater predator: A trade-off between foraging and predation risk

Read the free Plain Language Summary for this article on the Journal blog.

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来源期刊
Functional Ecology
Functional Ecology 环境科学-生态学
CiteScore
9.00
自引率
1.90%
发文量
243
审稿时长
4 months
期刊介绍: Functional Ecology publishes high-impact papers that enable a mechanistic understanding of ecological pattern and process from the organismic to the ecosystem scale. Because of the multifaceted nature of this challenge, papers can be based on a wide range of approaches. Thus, manuscripts may vary from physiological, genetics, life-history, and behavioural perspectives for organismal studies to community and biogeochemical studies when the goal is to understand ecosystem and larger scale ecological phenomena. We believe that the diverse nature of our journal is a strength, not a weakness, and we are open-minded about the variety of data, research approaches and types of studies that we publish. Certain key areas will continue to be emphasized: studies that integrate genomics with ecology, studies that examine how key aspects of physiology (e.g., stress) impact the ecology of animals and plants, or vice versa, and how evolution shapes interactions among function and ecological traits. Ecology has increasingly moved towards the realization that organismal traits and activities are vital for understanding community dynamics and ecosystem processes, particularly in response to the rapid global changes occurring in earth’s environment, and Functional Ecology aims to publish such integrative papers.
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