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Flowering phenology and survival of two annual plants Impatiens noli-tangere and Persicaria thunbergii co-occurring in streamside environments

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Title: Flowering phenology and survival of two annual plants Impatiens noli-tangere and Persicaria thunbergii co-occurring in streamside environments
Authors: Suzuki, Mayuko Browse this author
Kaya, Yuhdai Browse this author
Ishida, Takahide A. Browse this author
Hattori, Kouhei Browse this author
Miki, Kaori Browse this author
Nakamura, Takashi Browse this author
Kimura, Masahito T. Browse this author →KAKEN DB
Keywords: Annual plants
Flowering phenology
Herbivory
Rapid current
Submergence
Survival
Issue Date: May-2007
Publisher: Springer
Journal Title: Ecological Research
Volume: 22
Issue: 3
Start Page: 496
End Page: 501
Publisher DOI: 10.1007/s11284-006-0037-5
Abstract: Flowering phenology of cleistogamous annual plants Impatiens noli-tangere and Persicaria thunbergii was studied with reference to their mortality in streamside environments in northern Japan. I. noli-tangere produced flower-buds and flowers from late June to October, whereas P. thunbergii did so from mid-August to October. Both species were often killed by rapid current and submergence after heavy rainfall, which was unpredictable in the timing and intensity. P. thunbergii was more tolerant to rapid current and submergence than I. noli-tangere. Some individuals of I. noli-tangere were killed by herbivory from sawfly larvae in summer, but P. thunbergii individuals were seldom killed by herbivory. In consequence, the percentage of individuals that survived until the end of September was higher in P. thunbergii than in I. noli-tangere. These situations are assumed to select a long reproductive life in I. noli-tangere and autumn flowering in P. thunbergii.
Rights: The original publication is available at www.springerlink.com
Type: article (author version)
URI: http://hdl.handle.net/2115/25172
Appears in Collections:環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 木村 正人

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