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Coevolution between Himalayan cuckoos and 2 sympatric Pycnonotidae hosts

Current Zoology 2021年第6期67卷 639-644页

作者： Canchao YANG Qihong LI Tongping SU Anders Pape MøLLER Wei LIANG Ministry of Education Key Laboratory for Ecology of Tropical Islands Key Laboratory of Tropical Animal and Plant Ecology of Hainan ProvinceCollege of Life SciencesHainan Normal UniversityHaikou571158China Key Laboratory of Beibu Gulf Environment Change and Resources Utilization of Ministry of Education Nanning Normal UniversityNanning530001China Ecologie Systématique Evolution UniversitéParis-SudCNRSAgroParisTechUniversitéParis-SaclayOrsay CedexF-91405France Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering College of Life SciencesBeijing Normal UniversityBeijing100875China

Selection due to cuckoo parasitism is responsible for the evolution of anti-parasitism defenses in *** host species breeding sympatrically with a single parasitic cuckoo may evolve different strategies to reduce the risk of counter cuckoo parasitism,resulting in different interactions between cuckoos and hosts in areas of ***,we studied the coevolutionary interactions between Himalayan cuckoos Cuculus saturatus and 2 sympatric and closely related potential hosts belonging to the family Pycnonotidae,the brown-breasted bulbul Pycnonotus xanthorrhous and the collared finchbill Spizixos *** investigated parasitism rates and nest-site selection(nest height,nest cover,human disturbance,perch height,forest distance,and degree of concealment)related to parasitism risk,nest defense against a cuckoo dummy,and egg rejection against cuckoo model *** used specific nest sites that were further away from forests than those of finchbills,and they behaved more aggressively toward cuckoos than *** contrast,bulbuls possessed moderate egg rejection ability,whereas the finchbill rejected 100%of cuckoo model *** suggest that selection of a nest site away from forests by the bulbul explains the absence of parasitism by Himalayan *** suggest that these interspecific differences in nest-site selection and nest defense indicate alternative responses to selection due to cuckoos.

关键词： Cuculus saturatus distance to forest parasitism risk Pycnonotus xanthorrhous Spizixos semitorques

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