Female preferences for dominant frequency in frogs: constraints and impact on sexual size dimorphism

IF 1.9 2区 生物学 Q3 BEHAVIORAL SCIENCES
José Vinícius Bernardy, Isabella Melo, Diego Llusia, José Alexandre Felizola Diniz-Filho, Rogério Pereira Bastos
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引用次数: 0

Abstract

Ambotuy

Favoring males’ specific sexual signals, female preferences play a major role in frogs’ evolutionary process by selecting traits linked to those signals. However, the factors constraining and determining those preferences are scarcely explored in an evolutionary background. Here, through a phylogenetic comparative approach we check whether anuran species phylogenetic proximity and calling site predicts female preferences for dominant frequency and whether those preferences influence species sexual size dimorphism. Our hypotheses are as follows: 1) closer species have similar females’ preferences related to the dominant frequency of the partners’ calls; 2) the calling site influences sound propagation and consequently the preference of females for the dominant frequency of the males’ calls; and 3) the preference for calls with low dominant frequency influences the size of the males and consequent reduction of the biSased dimorphism for females. We did not find support for our hypotheses, neither for the influence of phylogenetic proximity nor for calling site determining these preferences. Moreover, female preferences did not impact on species sexual size dimorphism. Besides shedding light into our hypotheses, this study represents a considerable advance on evolutionary studies of female preferences in anura, which still lacks broad species comparative approaches. Furthermore, we suggest future studies to expand knowledge regarding frogs’ female preferences.

Significance statement

This study advances our comprehension of female preferences in frogs by investigating the factors that shape these preferences and their implications for species sexual size dimorphism. Utilizing phylogenetic comparative methods, an approach rarely used in the context of anuran female preferences, this study represents a significant step in applying broad comparative approaches in this field. Highlighting the complex nature of mate choice and its relationship to morphology, soundscape, and phylogeny, we present important insights into evolutionary hypotheses related to female preferences. Lastly, we provide advice on how future studies could further explore this topic in a broader comparative framework while also discussing the limitations of available data on anuran mating preferences.

Abstract Image

蛙类雌性对优势频率的偏好:制约因素及其对性大小二态性的影响
Ambotuy蛙喜欢雄性的特定性信号,雌性的偏好在蛙的进化过程中扮演了重要角色,因为雌性会选择与这些信号相关的性状。然而,在进化背景下,很少有人探讨制约和决定这些偏好的因素。在此,我们通过系统发育比较的方法,检验无尾类物种系统发育的接近性和鸣叫地点是否会预测雌性对优势频率的偏好,以及这些偏好是否会影响物种的性大小二态性。我们的假设如下1)距离较近的物种雌性对伴侣鸣叫主频的偏好相似;2)鸣叫地点影响声音传播,进而影响雌性对雄性鸣叫主频的偏好;3)对低主频鸣叫的偏好影响雄性的体型,进而降低雌性的双性二形。我们没有发现我们的假设得到支持,既没有发现系统发育邻近性的影响,也没有发现决定这些偏好的鸣叫地点。此外,雌性偏好对物种的性别大小二态性也没有影响。除了揭示我们的假说之外,这项研究还代表了雌性偏好在灵长类进化研究中的一大进步,因为灵长类仍然缺乏广泛的物种比较方法。此外,我们还建议今后开展更多的研究,以扩展有关蛙类雌性偏好的知识。意义声明这项研究通过研究形成蛙类雌性偏好的因素及其对物种性器官大小二态性的影响,加深了我们对蛙类雌性偏好的理解。这项研究采用了系统发育比较方法,这是一种很少用于研究有尾类雌性偏好的方法,它标志着我们在这一领域应用广泛的比较方法迈出了重要一步。我们强调了配偶选择的复杂性及其与形态学、声景学和系统发生学的关系,并对与雌性偏好相关的进化假说提出了重要见解。最后,我们就未来的研究如何在更广泛的比较框架内进一步探讨这一主题提出了建议,同时也讨论了有关无尾类交配偏好的现有数据的局限性。
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来源期刊
CiteScore
3.90
自引率
8.70%
发文量
146
审稿时长
3 months
期刊介绍: The journal publishes reviews, original contributions and commentaries dealing with quantitative empirical and theoretical studies in the analysis of animal behavior at the level of the individual, group, population, community, and species.
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