Phenotype networks reveal differences between practice and courtship displays in swallow-tailed manakins
Phenotype networks reveal differences between practice and courtship displays in swallow-tailed manakins
复制标题
表型网络揭示了燕尾侏儒鸟的实践和求爱表现之间的差异
DOI：
10.1016/j.anbehav.2020.11.002
复制
发表时间：
2021
期刊：
影响因子：
2.5
通讯作者：
L. Manica
中科院分区：
文献类型：
--
作者：
L. M. Schaedler;P. H. L. Ribeiro;L. Manica
亮点侏儒鸟舞蹈是多种声音、动作和多彩羽毛的协调。雄性跳舞向雌性求爱或与其他雄性，尤其是幼体一起练习。表型网络揭示了求爱和实践之间的特征差异。求爱飞行更高、更快和更长。网络分析揭示了雌性的存在如何影响雄性的展示行为。从性特征的综合属性、其功能以及它们在不同环境中的变化来理解复杂的多模式求爱展示是行为生态学的一个挑战，因为性行为可以带来一系列不同的进化影响。在这里，我们使用表型网络来评估燕尾侏儒鸟 Chiroxiphia caudata（雀形目：Pipridae）在两种社会背景下的展示：（1）练习展示和（2）求偶展示。我们使用从音频和视频记录以及羽毛中提取的声音、运动和颜色特征构建了三模态和两模态表型网络。我们假设两种情况下的网络都将是模块化的，因为每种模式中特征内部的简并性高于特征之间的简并性，因为特征是由不同的生理机制产生的。我们收集了巴西南部大西洋森林残余物三个繁殖季节（2015 年 10 月至 2018 年 3 月）的数据。我们发现练习网络比求爱网络具有更高的模块化程度，这与我们的预期相反。实践网络的受限模式表明，由于发育限制，青少年男性表现出严格的刻板印象，而成年男性特征之间较高的变异性可能表明他们有能力根据女性的反应和偏好调整表现。我们的研究揭示了不同的社会环境如何改变特征之间的关系，并为应该探索哪些特征来揭示这种复杂的展示功能提供了未来的方向。
HighlightsManakin dance is a coordination of multiple sounds, movements and colourful plumage.Males dance to court females or to practise with other males, especially juveniles.Phenotype networks reveal differences in traits between courtship and practice.Courting flights were higher, faster and longer.Network analysis reveals how female presence can shape male display behaviour.Understanding complex multimodal courtship displays in terms of the integrational properties of sexual traits, their functions and how they change in different contexts is a challenge in behavioural ecology, since sexual behaviours can present a diverse set of evolutionary implications. Here, we used phenotype networks to evaluate displays of the swallow-tailed manakin, Chiroxiphia caudata (Passeriformes: Pipridae) in two social contexts:(1) practice displays and (2) courtship displays. We built three-modality and two-modality phenotype networks using sound, motor and colour traits extracted from audio and video recordings and plumage. We hypothesized that networks in both contexts would be modular, as a consequence of a higher degeneracy within than between traits in each modality, as traits are produced by different physiological mechanisms. We collected data from a population in an Atlantic Forest remnant in southern Brazil during three breeding seasons (October–March 2015–2018). We found that practice networks had higher modularity than courtship networks, which was the opposite of what we expected. The constrained patterns of practice networks suggest that juvenile males perform a strict stereotypical display due to developmental constraints, while the higher variability between traits for adult males may indicate their capability of adjusting performances depending on female responses and preferences. Our study sheds light on how different social contexts can alter the relation between traits and also provides future directions for what traits should be explored to unravel this complex display function.
影响因子：
9.8
作者：
Ligon RA;Diaz CD;Morano JL;Troscianko J;Stevens M;Moskeland A;Laman TG;Scholes E 3rd
通讯作者：
Scholes E 3rd
模块化、冗余和简并：关键设计原则的跨领域视角
DOI：
10.1109/syscon.2014.6819309
发表时间：
2014
期刊：
--
影响因子：
--
作者：
Chen C
通讯作者：
Chen C