LIFE-HISTORY PLASTICITY OF RIPARIAN ANNUAL PLANTS ADAPTED TO EXTREME VARIATIONS IN WATER LEVEL: MESOCOSM EXPERIMENTS
文献类型：期刊论文
| 作者 | Song, Y.2,3; Liu, G.3; Davy, A. J.1; Liu, W.3; Ke, X.4 |
| 刊名 | RIVER RESEARCH AND APPLICATIONS
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 31期号:10页码:1311-1318 |
| 关键词 | life-history adaptation flowering phenology phenotypic plasticity water-level fluctuation riparian zone regulated river |
| ISSN号 | 1535-1459 |
| DOI | 10.1002/rra.2834 |
| 英文摘要 | The riparian zones of reservoirs associated with regulated rivers in China experience annual fluctuations in water level of up to 30m that may vary in timing from year to year. Few plant species can tolerate such hydrological perturbation, but short-lived riparian annuals might be evolutionarily pre-adapted to such conditions. This study investigated plasticity of life history in four annual species: one typically associated with free-flowing rivers (Panicum bisulcatum) and three that colonize reservoir margins (Cyperus michelianus, Fimbristylis miliacea and Eclipta prostrata). We found that all four species produced non-dormant seeds that survived prolonged submergence; germination percentage was independent of the time of exposure by receding waters. Although growth was reduced as a result of shorter growing seasons, all four species completed their life cycles and produced seeds before winter. In addition, P. bisulcatum and C. michelianus allocated biomass to seed production, at the expense of roots and stems, in response to later establishment. All species responded to later establishment with a reduced vegetative growth period before seed production. C. michelianus, F. miliacea and E. prostrate could also delay the onset of flowering time by up to 2 months. P. bisulcatum, a plant that can flower only after exposure to short days, consequently had a fixed flowering time and could accommodate delayed establishment only with a progressively shorter period of vegetative growth. This lower flexibility might explain its absence from reservoir margins. The conceptual framework presented here offers a tool to predict the establishment of vegetation under hydrological disturbance in riparian environments and thereby provides insights into improved restoration practice. Copyright (c) 2014 John Wiley & Sons, Ltd. |
| 资助项目 | National Key Technology R & D Program of China[2012BAC06B03] ; National Science Foundation of China[30970469] |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000368010500010 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/167]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Liu, G. |
| 作者单位 | 1.Univ E Anglia, Sch Biol Sci, Norwich NR4 7TJ, Norfolk, England 2.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China 4.Changjiang Inst Survey, Planning Design & Res, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Y.,Liu, G.,Davy, A. J.,et al. LIFE-HISTORY PLASTICITY OF RIPARIAN ANNUAL PLANTS ADAPTED TO EXTREME VARIATIONS IN WATER LEVEL: MESOCOSM EXPERIMENTS[J]. RIVER RESEARCH AND APPLICATIONS,2015,31(10):1311-1318. |
| APA | Song, Y.,Liu, G.,Davy, A. J.,Liu, W.,&Ke, X..(2015).LIFE-HISTORY PLASTICITY OF RIPARIAN ANNUAL PLANTS ADAPTED TO EXTREME VARIATIONS IN WATER LEVEL: MESOCOSM EXPERIMENTS.RIVER RESEARCH AND APPLICATIONS,31(10),1311-1318. |
| MLA | Song, Y.,et al."LIFE-HISTORY PLASTICITY OF RIPARIAN ANNUAL PLANTS ADAPTED TO EXTREME VARIATIONS IN WATER LEVEL: MESOCOSM EXPERIMENTS".RIVER RESEARCH AND APPLICATIONS 31.10(2015):1311-1318. |
入库方式： OAI收割
来源：武汉植物园
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