雌性帆鳍四爪鱼喜欢红色光照的环境

IF 1.1 4区 生物学 Q4 BEHAVIORAL SCIENCES acta ethologica Pub Date : 2024-05-02 DOI:10.1007/s10211-024-00439-7
Elio de Almeida Borghezan, Tiago Henrique da Silva Pires, Jansen Zuanon, Hideki Sugiura, Shiro Kohshima
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引用次数: 0

摘要

对色彩的偏好对视觉导向物种的适应性有着深远的影响,会影响它们对食物资源和优质配偶的搜寻,同时还会调节各种生理和行为特征。由于视觉信号在性内和性间交流中发挥着重要作用,因此这些过程对于性二态物种(尤其是有色物种)可能更为重要。亚马逊小溪的溶解有机碳含量差异很大,因此形成了黑色(偏红)和清澈(主要透明)两种水体类型。帆鳍四棘鲷(Crenuchus spilurus)是一种小型的性双态物种,由生活在黑水和清水中的两个主要基因系组成。最近,我们发现生活在黑水和清水中的雌鱼对雄鱼装饰品颜色的性偏好有所不同。在强烈的红光照射下,黑水中的雌性并不以体色为选择雄性的主要依据,而清水中的雌性则以体色为选择雄性的主要依据。在此,我们通过在红色和全光谱光照环境之间进行选择,对帆鳍四爪鱼雌性的环境色彩偏好进行了评估。来自黑色水域和清澈水域的雌鱼都更喜欢红色光照的环境。这些结果表明,雌性在交配之外也会被红色所吸引,而不管其原生环境的光照条件如何。这种对红色光照环境的偏好可能对包括生理和行为特征在内的多个过程都很重要。
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Females of the sailfin tetra prefer red illuminated environments

The preference for colours has profound impacts on the fitness of visually oriented species, influencing the search for food resources and mates of better quality while also modulating various physiological and behavioural features. Such processes may be more important to sexually dimorphic species, especially coloured ones since visual signals play an important role in intra- and intersexual communication. Amazon small streams vary widely regarding the amount of dissolved organic carbon resulting in black (red-biased) and clear (mostly transparent) water types. The sailfin tetra Crenuchus spilurus is a small sexually dimorphic species composed of two main genetic lineages that live in black and clear water types. Recently, we have shown that the female sexual preference for male ornaments colouration differs between individuals inhabiting black and clear water types. Females from black waters do not choose males primarily based on colouration under strongly red-biased lighting, but females from clear waters do, which suggests that the importance of red colours for sexual behaviour differs between lineages of the sailfin tetra. Here, we evaluated the sailfin tetra female environmental colour preference through the choice between a red and a full spectrum illuminated environments. Females from black waters and clear waters preferred red-lightened environments. Such results suggest that the females are attracted to the red colouration outside the context of mating, irrespective of the prevailing lighting condition of their native environment. This preference for red illuminated environments may be important for several processes, including physiological and behavioural features.

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来源期刊
acta ethologica
acta ethologica 生物-动物学
CiteScore
1.90
自引率
0.00%
发文量
18
审稿时长
>12 weeks
期刊介绍: acta ethologica publishes empirical and theoretical research papers, short communications, commentaries, reviews and book reviews as well as methods papers in the field of ethology and related disciplines, with a strong concentration on the behavior biology of humans and other animals. The journal places special emphasis on studies integrating proximate (mechanisms, development) and ultimate (function, evolution) levels in the analysis of behavior. Aspects of particular interest include: adaptive plasticity of behavior, inter-individual and geographic variations in behavior, mechanisms underlying behavior, evolutionary processes and functions of behavior, and many other topics. acta ethologica is an official journal of ISPA, CRL and the Portuguese Ethological Society (SPE)
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