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SUN-TRACKING FLOWER MOVEMENT AND SEED PRODUCTION OF MOUNTAIN AVENS, DRYAS OCTOPETALA L. IN THE HIGH ARCTIC, NY-ÅLESUND, SVALBARD (19th Symposium on Polar Biology)
https://doi.org/10.15094/00005371
https://doi.org/10.15094/00005371a4b2be72-f106-4fe6-8055-773ece5c5960
名前 / ファイル | ライセンス | アクション |
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KJ00000767714 (1.2 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||
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公開日 | 1998-02-01 | |||||||
タイトル | ||||||||
タイトル | SUN-TRACKING FLOWER MOVEMENT AND SEED PRODUCTION OF MOUNTAIN AVENS, DRYAS OCTOPETALA L. IN THE HIGH ARCTIC, NY-ÅLESUND, SVALBARD (19th Symposium on Polar Biology) | |||||||
言語 | ||||||||
言語 | eng | |||||||
キーワード | ||||||||
言語 | en | |||||||
主題Scheme | Other | |||||||
主題 | artificial warming | |||||||
キーワード | ||||||||
言語 | en | |||||||
主題Scheme | Other | |||||||
主題 | cross pollination | |||||||
キーワード | ||||||||
言語 | en | |||||||
主題Scheme | Other | |||||||
主題 | flower heliotropism | |||||||
キーワード | ||||||||
言語 | en | |||||||
主題Scheme | Other | |||||||
主題 | High Arctic | |||||||
キーワード | ||||||||
言語 | en | |||||||
主題Scheme | Other | |||||||
主題 | seed production | |||||||
資源タイプ | ||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
資源タイプ | departmental bulletin paper | |||||||
ID登録 | ||||||||
ID登録 | 10.15094/00005371 | |||||||
ID登録タイプ | JaLC | |||||||
ページ属性 | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | P(論文) | |||||||
記事種別(英) | ||||||||
en | ||||||||
Proceeding | ||||||||
論文名よみ | ||||||||
その他のタイトル | SUN-TRACKING FLOWER MOVEMENT AND SEED PRODUCTION OF MOUNTAIN AVENS, DRYAS OCTOPETALA L. IN THE HIGH ARCTIC, NY-ÅLESUND, SVALBARD (19th Symposium on Polar Biology) | |||||||
著者名よみ |
ワダ, ナオヤ
× ワダ, ナオヤ
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著者名(英) |
WADA, Naoya
× WADA, Naoya
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著者所属(英) | ||||||||
en | ||||||||
Department of Biosphere Science, Faculty of Science, Toyama University | ||||||||
抄録(英) | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | I observed the sun-tracking behavior, temperature increment within flowers, and seed production of mountain avens, Dry us oclopclala L , occurring near Bragger glacier in Ny-Alesund (78°55'N, 11°56'E), Svalbard in Norway. The flowers showed sun-tracking movement on sunny days, but the movement was mostly found around noon and was not so active throughout a sunny day. The temperature increment of the gynoecmm in flowers facing the sun was ca 2℃ higher than in flowers with their back to the sun Petal removal resulted in considerable reduction of the gynoecmm temperature Insects (mostly mosquitoes) visiting flowers were very infrequent, suggesting that a severe pollinator limitation restricted the crosspollination. During the experiments, flowers of Dryas octopetala did not produce any developed seeds under natural condition (0% seed-set) Cross-pollinated flowers showed 8% seed-set, while flowers which were artificially warmed by small green-houses during the flowering period showed 60% seed-set, indicating that the reproduction of D octopetala is strongly restricted by low temperature during the flowering period, rather than by pollinator limitation, in the population of Ny-Ålesund, Svalbard These results suggest that the sun-tracking behavior and parabola-shaped flower structure with large petals are important for seed-setting success by increasing the gynoecmm temperature. | |||||||
雑誌書誌ID | ||||||||
収録物識別子タイプ | NCID | |||||||
収録物識別子 | AA10819561 | |||||||
書誌情報 |
Proceedings of the NIPR Symposium on Polar Biology 巻 11, p. 128-136, 発行日 1998-02 |
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出版者 | ||||||||
出版者 | National Institute of Polar Research |