Data for: Repeatable negotiation rules? only females show repeatable response to partner removal in a brood-provisioning songbird

Theoretical models indicate that the evolution of biparental care depends on how parents behaviorally negotiate their level of care in response to those of their partner and whether sexes and individuals consistently vary in their response (compensatory response). While compensatory response has been widely investigated empirically, its repeatability has rarely been assessed. In this study, we used a reaction norm approach to investigate the repeatability of the compensatory offspring provisioning of a parent after temporary removal of its partner in the pied flycatcher (Ficedula hypoleuca) across different breeding seasons and partners. We found that only females partially compensated for the short-term removal of the partner and their response was significantly repeatable across years while breeding with different partners. This study highlights the importance of considering among individual differences in negotiation rules to better understand the role of negotiation mechanisms in th..., ,

理论模型表明，双亲抚育（biparental care）的演化取决于亲本如何通过行为层面协商各自的抚育投入水平以响应伴侣的抚育投入，同时也取决于两性及个体间的响应是否存在稳定差异——即补偿响应（compensatory response）。尽管补偿响应已得到广泛的实证研究，但其可重复性（repeatability）却极少被评估。本研究采用反应规范（reaction norm）方法，以斑姬鹟（Ficedula hypoleuca）为研究对象，探究了其亲本在伴侣被暂时移除后，补偿性育幼投喂（compensatory offspring provisioning）在不同繁殖季与不同配偶条件下的可重复性。研究发现，仅雌性个体能够部分弥补伴侣被短期移除后的育幼缺口，且在与不同配偶繁殖的年份间，其响应的可重复性显著存在。本研究强调了在协商规则中纳入个体间差异的重要性，以期更好地理解协商机制在……中的作用。