大杜鹃对北红尾鸲的放牧行为  

Farming Behavior by the Common Cuckoos in Its Daurian Redstart Hosts

作　　者：钟国 万桂霞 王龙舞[1] 梁伟[2] ZHONG Guo;WAN Gui-Xia;WANG Long-Wu;LIANG Wei(Key Laboratory of Biodiversity Conservation in Karst Mountain Area of Southwest of State Forestry Ministry,School of Life Sciences,Guizhou Normal University,Guiyang 550001;Ministry of Education Key Laboratory for Ecology of Tropical Islands,College of Life Sciences,Hainan Normal University,Haikou 571158,China)

机构地区：[1]国家林业局西南喀斯特山地生物多样性保护重点实验室,贵州师范大学生命科学学院,贵阳550001 [2]热带岛屿生态学教育部重点实验室,海南师范大学生命科学学院,海口571158

出　　处：《动物学杂志》2019年第6期800-805,共6页Chinese Journal of Zoology

基　　金：国家自然科学基金项目(No.31660617,31960105,31772453,31970427);贵州省科技计划项目(黔科合平台人才[2017]5726号)

摘　　要：在宿主的寄生防御压力下,鸟类巢寄生者通常会进化出一系列有效的寄生行为以提高其自身的繁殖适合度。以往研究发现,部分巢寄生者可能具有类似人类的“放牧”行为,即通过破坏或捕食不适合寄生的宿主巢,促使其重新筑巢以获取新的寄生机会。然而,对于其野外行为事件的报道并不多见。2018年5至8月,在贵州六枝地区,通过对宿主北红尾鸲(Phoenicurus auroreus)的巢进行录像监控,首次记录到大杜鹃(Cuculus canorus)对正在孵卵的北红尾鸲的放牧行为。进一步查阅了大杜鹃寄生系统中已有的放牧案例,说明放牧行为很可能是大杜鹃普遍采用的一种寄生策略。Obligate avian brood parasites lay their eggs in nests belonging to other host species,accordingly,they imposed the costs of parental care to their victims.Hosts evolve defenses to counter brood parasitism such as egg recognition and egg rejection,also nest defense,these host-parasites system well-known arms race are regarded as a textbook example of co-evolutionary Interactions.Natural selection favors the brood parasites such as parasitic cuckoos to evolve effective parasitic strategies under the pressure of anti-parasitism to improve their reproductive fitness.Previous studies revealed that some brood parasites might take the“farming”strategy,which means that they would destroy the content(eggs/nestlings)of host nests,forcing the hosts to re-nest,so they could gain new parasitic opportunities.However,reports on such events in the field are extremely rare in all avian parasitism systems.In May 2018,one case of such farming behavior by the Common Cuckoo(Cuculus canorus)in its Daurian Redstart(Phoenicurus auroreus)host was confirmed by the video recording in Liuzhi area of Guizhou Province,China.By reviewing literatures about farming behaviors in the Common Cuckoo(Table 1),we found that the farming behavior of the Common Cuckoo being more common than previously thought,and the strategy could increase its breeding success.

关 键 词：鸟类巢寄生 放牧行为 大杜鹃 北红尾鸲 

分 类 号：Q958[生物学—动物学]