Foraging and thermally induced phenotypic plasticity interact in the most northerly distributed freshwater fish.

IF 2.8 2区 生物学 Q2 BIOLOGY
Biology Letters Pub Date : 2025-06-01 Epub Date: 2025-06-25 DOI:10.1098/rsbl.2024.0636
Colin E Adams, Colin Bean, Kevin Parsons
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引用次数: 0

Abstract

Elevated temperatures from climate change are predicted to be more extreme at higher latitudes. This could require phenotypic plasticity to generate variation that allows organisms to persist in these regions. However, climate change will provide a multifactorial change in environmental cues, making an understanding of how they interact essential for predicting persistence and future evolutionary potential. Here, the impacts of temperature on ecologically relevant phenotypic plasticity (foraging environment) in Arctic charr (Salvelinus alpinus) were studied. Eggs and alevins were kept at the same temperature (9°C) and split using a factorial design. This included two temperature treatments (10°C and 14°C) and two treatments representing benthic and pelagic foraging styles. We measured morphology in response to these treatment combinations and found an interaction between foraging and temperature-induced plasticity in body shape that included changes in body depth and the caudal peduncle that could impact swimming ability and fitness. This indicates that thermal conditions may change how plasticity responds to ecological conditions and impact adaptive variation.

在最北分布的淡水鱼中,觅食和热诱导的表型可塑性相互作用。
据预测,气候变化导致的气温升高在高纬度地区更为极端。这可能需要表型可塑性来产生变异,使生物体能够在这些区域持续存在。然而,气候变化将提供环境线索的多因素变化,使了解它们如何相互作用对预测持久性和未来进化潜力至关重要。本文研究了温度对北极鲑(Salvelinus alpinus)生态相关表型可塑性(觅食环境)的影响。鸡蛋和alevins在相同温度(9°C)下保存,并使用析因设计进行分离。这包括两个温度处理(10°C和14°C)和两个代表底栖和远洋觅食方式的处理。我们测量了对这些处理组合的反应形态,发现觅食和温度诱导的身体形状可塑性之间存在相互作用,包括身体深度和尾端柄的变化,这些变化可能影响游泳能力和健康。这表明热条件可能会改变可塑性对生态条件的响应,并影响适应性变化。
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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来源期刊
Biology Letters
Biology Letters 生物-进化生物学
CiteScore
5.50
自引率
3.00%
发文量
164
审稿时长
1.0 months
期刊介绍: Previously a supplement to Proceedings B, and launched as an independent journal in 2005, Biology Letters is a primarily online, peer-reviewed journal that publishes short, high-quality articles, reviews and opinion pieces from across the biological sciences. The scope of Biology Letters is vast - publishing high-quality research in any area of the biological sciences. However, we have particular strengths in the biology, evolution and ecology of whole organisms. We also publish in other areas of biology, such as molecular ecology and evolution, environmental science, and phylogenetics.
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