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Phytogeography and ecology of Scalesia (Compositae) endemic to the Galapagos Islands
http://hdl.handle.net/10069/6478
http://hdl.handle.net/10069/6478c38fccbe-0428-4652-a3e1-cae2d6cf50a6
名前 / ファイル | ライセンス | アクション |
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PcfSci49_17.pdf (2.7 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2007-02-14 | |||||
タイトル | ||||||
タイトル | Phytogeography and ecology of Scalesia (Compositae) endemic to the Galapagos Islands | |||||
言語 | ||||||
言語 | eng | |||||
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 | journal article | |||||
著者 |
Itow, Syuzo
× Itow, Syuzo |
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著者別名 | ||||||
姓名 | 伊藤, 秀三 | |||||
その他のタイトル | ||||||
その他のタイトル | ガラパゴス諸島固有属スカレシアの分布と生態 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Scalesia (Compositae), a genus endemic to the Galipagos Islands,consists of 12 shrubby species distributed in the lowland dry zone and three tree species found in the mid-elevation moist zone. They are completely allopatric in distribution. All the species have herbaceous traits: fast growth, soft wood, large pith at the center of trunk, and flowering within 1 yr after germination (in greenhouse). The tree species Scalesia pedunculata Hook. f. is shade-intolerant and heliophdous, and predominates as a monoculture in the moist zone of the four larger hlgh-elevation islands. In ecological succession, it functions as pioneer, successor, and climax canopy plant. Even at climax or maturity of this monodominant forest, the canopy is not accompanied by young generations beneath owing to its shade-intolerance. The canopy population of postmature forest dies back nearly synchronously. A new generation then develops to build new forest. The progression from germination to maturity, and further to senescence and die back, is a self-cyclic succession, without change of dominant species. Over much of its range, S. pedunculata is endangered by the effects of past agricultural exploitation or heavy browsing by free-ranging goats, pigs, and donkeys; however, the population on the north side of Isla Santa Cruz has been preserved in good condition in the Galipagos National Park. |
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書誌情報 |
Pacific science : a quarterly devoted to the biological and physical sciences of the Pacific Region 巻 49, 号 1, p. 17-30, 発行日 1995-01 |
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出版者 | ||||||
出版者 | University of Hawaii Press | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00308870 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00767199 | |||||
権利 | ||||||
権利情報 | c by University of Hawaii Press | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Pacific Science 49(1) p.17-30 1995 |