Cuckoo parasitism on two closely-related Acrocephalus warblers in distant areas:a case of parallel coevolution?

作     者：Csaba MOSKaT Fugo TAKASU A.Roman MU OZ Hiroshi NAKAMURA Miklós BaN Zoltán BARTA Csaba MOSK(A)T;Fugo TAKASU;A.Roman MU(N)OZ;Hiroshi NAKAMURA;Miklós B(A)N;Zoltán BARTA

作者机构：匈牙利科学院生态学研究组/匈牙利罗兰大学/匈牙利自然历史博物馆 日本奈良女子大学信息与计算机科学系 西班牙FundacianMigresN-340Km.96AlgecirasE-11390Cádiz 日本信州大学教育学院生物学系 匈牙利德布勒森大学进化动物学系行为生态学研究组 

出 版 物：《Chinese Birds》 (中国鸟类（英文版）)

年 卷 期：2012年第3卷第4期

页      面：320-329,342页

学科分类：07[理学] 0713[理学-生态学] 

基　　金：supported by the bilateral project of the Japan Society for the Promotion of Science (JSPS) the Hungarian Academy of Sciences to F.T. and C.M. 2003-2005 by the Hungarian Scienti c Research Fund (OTKA grant No.T35015,48397 and 83217) to C.M. e Duna-Ipoly and Kiskunság National Parks provided permissions for research 

主　　题：Acrocephalus arundinaceus Acrocephalus orientalis arms race brood parasitism Cuculus canorus egg discrimination parallel coevolution 

摘      要：Common Cuckoos(Cuculus canorus) parasitize nests of small passerines.e Cuckoo chicks cause the death of their nest-mates when evicting eggs or nestlings from the nests;consequently,hosts su er from a high loss of *** adaptations against parasitism,e.g.,by egg discrimination behavior,and cuckoo counter-adaptations to hosts,e.g.,by mimetic eggs,are often regarded as a result of the arms race between the two interacting *** Hungary Great Reed Warblers(Acrocephalus arundinaceus) are the main hosts of cuckoos,su ering from heavy parasitism(ca.40-65%).e Oriental Reed Warbler(***),formerly a subspecies of the Great Reed Warbler(***),is also a highly parasitized host in Japan(25-40%).We compared main characteristics of Cuckoo parasitism in these two distant areas from the Western and Eastern Palearctic by comparing cuckoo egg *** measured color characteristics of host and parasitic eggs by *** modeling revealed lower chromatic distances between Cuckoo and host eggs in Hungary than in Japan,but high variation both in host and Cuckoo eggs may cause matching problems in ***(brightness) di erence between host and Cuckoo eggs were lower in Japan than in Hungary,and it proved to be the most important factor a ecting egg *** rejected Cuckoo eggs at similar frequencies(37% and 35% in Hungary and Japan,respectively).Host adaptation,i.e.,egg rejection behavior,seems to be preceding Cuckoo counter-adaptations to hosts in *** suggest that the Cuckoo-Great/Oriental Reed Warbler relationships developed in alternative ways in Japan and Hungary,and they represent di erent stages of their arms race.