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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2014 Vol.33 No.5

Variation in Parasitism Rates by Common Cuckoos among Three Populations of the Oriental Reed Warblers
Author of the article:LIANG Guoxian1, YANG Canchao1, WANG Longwu1, 2, LIANG Wei1*
Author's Workplace:(1. Ministry of Education Key Laboratory for Tropical Animal and Plant Ecology, College of Life Sciences, Hainan Normal University, Haikou 571158, China; 2. College of Life Sciences, Wuhan University, Wuhan 430072, China)
Key Words:Acrocephalus orientalis; Cuculus canorus; parasitism rate; geographical variation
Abstract:Oriental reed warbler Acrocephalus orientalis is one of the major hosts of the common cuckoo Cuculus canorus. In this study, we investigated the spatial and temporal variation of cuckoo parasitism rates on this host species from three geographical populations. Cuckoo parasitism rates were significantly different among geographical host populations (χ2=28.26, df=2, P<0.001), ranging from 21.4% to 65.5%. However, no significant difference was observed in the parasitism rates of populations with nearby geographical locations (χ2=1.152, df=2, P=0.562). Furthermore, the parasitism rates differed between successive years within the same population (34.3% vs. 65.5%, χ2=11.028, df=1, P<0.001). Population density of hosts and number of cuckoo perches among different geographical locations might explain the spatial variation of parasitism rates among different geographical populations. Moreover, the reason for temporal change of parasitism rates in the same population should be revealed by further study.
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