Garrido-Priego Marina, Tószeghi Moric, Angiolani-Larrea Francesca N, Valencia-Aguilar Anyelet, Bégué Lauriane, Núñez Raby, Culebras Jaime, Ringler Max, Stynoski Jennifer L, Ringler Eva
Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Wohlenstrasse 50a, CH-3032 Hinterkappelen, Switzerland.
Sierpefrogs, Sierpe de Osa, Puntarenas, 60503, Costa Rica.
Behav Ecol. 2024 Oct 3;35(6):arae078. doi: 10.1093/beheco/arae078. eCollection 2024 Nov-Dec.
Females of some species improve their reproductive success not only by being choosy and selecting males with certain traits, but also by sequentially mating with multiple males within one reproductive season. However, it is relatively unknown whether females also evaluate parental care during mate choice and, if they do, whether males actively communicate their care status to approaching females. We monitored a natural population of the glassfrog , a species with sequential polyandry and paternal care, to assess the role of parental care and advertisement calling on male mating success. Using field observations and acoustic analysis, we found that even in this species which has single-note calls, variations in call parameters allow for individual discrimination. Calling was strongly associated with mating success in males. Males with longer calls achieved the highest total mating success over the entire study period, indicating that females might have a preference for longer calls. Moreover, active calling and the presence of clutches were both linked to male mating success on a given night, although we cannot fully exclude that the link between presence of clutches and mating success is due to attractive call features alone. Call parameters differed between males when they were calling on top of their clutches, compared to sitting on the leaf directly, which might provide reliable cues about parental state to approaching females. These findings demonstrate the prominent role of acoustic communication and female choice in a species with male parental care and sequential polyandry.
一些物种的雌性不仅通过挑剔并选择具有某些特征的雄性来提高繁殖成功率，还会在一个繁殖季节内依次与多个雄性交配。然而，雌性在择偶时是否也会评估亲代抚育行为，以及如果她们这样做了，雄性是否会主动向接近的雌性传达自己的抚育状态，这些情况相对来说还不太清楚。我们监测了一个玻璃蛙的自然种群，这是一种具有顺序性一妻多夫制和亲代抚育行为的物种，以评估亲代抚育行为和广告鸣叫对雄性交配成功率的作用。通过实地观察和声学分析，我们发现即使在这个具有单音鸣叫的物种中，鸣叫参数的变化也能实现个体识别。鸣叫与雄性的交配成功率密切相关。在整个研究期间，鸣叫时间较长的雄性获得了最高的总交配成功率，这表明雌性可能偏好较长的鸣叫。此外，主动鸣叫和有卵块都与雄性在某一晚的交配成功率有关，尽管我们不能完全排除卵块的存在与交配成功率之间的联系仅仅是由于有吸引力的鸣叫特征。与直接坐在叶子上相比，当雄性在卵块上鸣叫时，其鸣叫参数有所不同，这可能会为接近的雌性提供关于亲代状态的可靠线索。这些发现证明了声学通讯和雌性选择在一个具有雄性亲代抚育行为和顺序性一妻多夫制的物种中的重要作用。
