污染世界中的鸟类体色:一项荟萃分析。

IF 11 1区 生物学 Q1 BIOLOGY
Katarzyna Janas, Agnieszka Gudowska, Szymon M. Drobniak
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引用次数: 0

摘要

鸟类绚丽多样的色彩装饰是达尔文提出性选择观点的重要线索之一。尽管鸟类的色彩具有多种功能,包括隐蔽、调节体温或作为令人讨厌的猎物进行广告宣传,但在性选择中的质量信号作用却吸引了最多的研究关注。与自然选择的特征相比,性选择的装饰品被认为更容易受到外部压力的影响,因此,它们可以被用作环境质量的测试。因此,在过去的二十年中,有关人为污染对鸟类各种颜色特征表达的影响的研究层出不穷。在此,我们首次对这些研究结果进行了元分析总结,并研究了颜色产生机制(类胡萝卜素、黑色素和结构性)与人为因素类型(分为重金属、持久性有机污染物、城市化或其他)之间是否存在相互作用。根据在性选择下装饰品的条件依赖性增强的假设,我们还预计雄性的效应大小会更大。总体效应大小接近显著性且为负值,支持人为污染物对鸟类肤色的总体不利影响。与预期不同的是,污染类型和颜色产生机制之间没有相互作用。然而,不同颜色生成机制的敏感性存在显著差异,类胡萝卜素类颜色受人为环境干扰的影响最大。此外,我们还观察到男性的敏感性并没有明显提高。我们发现了结构着色方面的出版空白,与基于色素的着色相比,结构着色的研究仍然明显不足,因此应在未来的研究中优先考虑。最后,我们呼吁统一生态研究中的颜色量化方法,以确保不同研究结果之间的可比性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Avian colouration in a polluted world: a meta-analysis

Avian colouration in a polluted world: a meta-analysis

Brilliant, diverse colour ornaments of birds were one of the crucial cues that led Darwin to the idea of sexual selection. Although avian colouration plays many functions, including concealment, thermoregulation, or advertisement as a distasteful prey, a quality-signalling role in sexual selection has attracted most research attention. Sexually selected ornaments are thought to be more susceptible to external stressors than naturally selected traits, and as such, they might be used as a test for environmental quality. For this reason, the last two decades have seen numerous studies on the impact of anthropogenic pollution on the expression of various avian colour traits. Herein, we provide the first meta-analytical summary of these results and examine whether there is an interaction between the mechanism of colour production (carotenoid-based, melanin-based and structural) and the type of anthropogenic factor (categorised as heavy metals, persistent organic pollutants, urbanisation, or other). Following the assumption of heightened condition dependence of ornaments under sexual selection, we also expected the magnitude of effect sizes to be higher in males. The overall effect size was close to significance and negative, supporting a general detrimental impact of anthropogenic pollutants on avian colouration. In contrast to expectations, there was no interaction between pollution types and colour-producing mechanisms. Yet there were significant differences in sensitivity between colour-producing mechanisms, with carotenoid-based colouration being the most affected by anthropogenic environmental disturbances. Moreover, we observed no significant tendency towards heightened sensitivity in males. We identified a publication gap on structural colouration, which, compared to pigment-based colouration, remains markedly understudied and should thus be prioritised in future research. Finally, we call for the unification of methods used in colour quantification in ecological research to ensure comparability of results among studies.

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来源期刊
Biological Reviews
Biological Reviews 生物-生物学
CiteScore
21.30
自引率
2.00%
发文量
99
审稿时长
6-12 weeks
期刊介绍: Biological Reviews is a scientific journal that covers a wide range of topics in the biological sciences. It publishes several review articles per issue, which are aimed at both non-specialist biologists and researchers in the field. The articles are scholarly and include extensive bibliographies. Authors are instructed to be aware of the diverse readership and write their articles accordingly. The reviews in Biological Reviews serve as comprehensive introductions to specific fields, presenting the current state of the art and highlighting gaps in knowledge. Each article can be up to 20,000 words long and includes an abstract, a thorough introduction, and a statement of conclusions. The journal focuses on publishing synthetic reviews, which are based on existing literature and address important biological questions. These reviews are interesting to a broad readership and are timely, often related to fast-moving fields or new discoveries. A key aspect of a synthetic review is that it goes beyond simply compiling information and instead analyzes the collected data to create a new theoretical or conceptual framework that can significantly impact the field. Biological Reviews is abstracted and indexed in various databases, including Abstracts on Hygiene & Communicable Diseases, Academic Search, AgBiotech News & Information, AgBiotechNet, AGRICOLA Database, GeoRef, Global Health, SCOPUS, Weed Abstracts, and Reaction Citation Index, among others.
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