Nectar robbing from two species of genus <i>Ipomoea</i> flowers by Japanese White-eyes in Okinawa Island

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Other Title
  • 沖縄本島における<i>Ipomoea</i> 属 2種の花に対するメジロの盗蜜行動

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Description

I observed the Japanese White-eye Zosterops japonica rob native Ipomoea indica flowers of their nectar in Okinawa Island, southern Japan. This observation suggests that Japanese White-eyes have long been conducting nectar robbing as a foraging method. Using serial photographs, I also described the nectar robbing behavior of Japanese White-eyes on flowers of the introduced I. cairica. I discovered I. indica flowers that were presumably damaged by Japanese White-eyes during 5 out of 8 survey-days. The maximum percentage of I. indica flowers that were damaged at any site was 41.18%, with an average of 6.19% per site (No. of flowers = 323). I also detected damaged flowers of I. cairica during 2 of 6 survey-days. The maximum percentage of damaged I. cairica at any site was 31.03%, with an average of 5.68% per site (No. of flowers = 264).

Journal

  • Bird Research

    Bird Research 7 (0), S1-S4, 2011

    Japan Bird Research Association

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Details 詳細情報について

  • CRID
    1390282680209793920
  • NII Article ID
    130000645373
  • DOI
    10.11211/birdresearch.7.s1
  • ISSN
    18801595
    18801587
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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