Aerial and soil seed banks enable populations of an annual species to cope with an unpredictable dune ecosystem
文献类型：期刊论文
| 作者 | Gao, Ruiru1; Yang, Xuejun; Yang, Fan1; Wei, Lingling; Huang, Zhenying ; Walck, Jeffrey L.
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| 刊名 | ANNALS OF BOTANY
 |
| 出版日期 | 2014 |
| 卷号 | 114期号:2页码:279-287 |
| 关键词 | Aerial seed bank soil seed bank Agriophyllum squarrosum Chenopodiaceae seed germination seedling establishment fitness sand dune ecology |
| ISSN号 | 0305-7364 |
| DOI | 10.1093/aob/mcu104 |
| 文献子类 | Article |
| 英文摘要 | Background and Aims Simultaneous formation of aerial and soil seed banks by a species provides a mechanism for population maintenance in unpredictable environments. Eolian activity greatly affects growth and regeneration of plants in a sand dune system, but we know little about the difference in the contributions of these two seed banks to population dynamics in sand dunes. Methods Seed release, germination, seedling emergence and survival of a desert annual, Agriophyllum squarrosum (Chenopodiaceae), inhabiting the Ordos Sandland in China, were determined in order to explore the different functions of the aerial and soil seed banks. Key Results The size of the aerial seed bank was higher than that of the soil seed bank throughout the growing season. Seed release was positively related to wind velocity. Compared with the soil seed bank, seed germination from the aerial seed bank was lower at low temperature (5/15 degrees C night/day) but higher in the light. Seedling emergence from the soil seed bank was earlier than that from the aerial seed bank. Early-emerged (15 April-15 May) seedlings died due to frost, but seedlings that emerged during the following months survived to reproduce successfully. Conclusions The timing of seed release and different germination behaviour resulted in a temporal heterogeneity of seedling emergence and establishment between the two seed banks. The study suggests that a bet-hedging strategy for the two seed banks enables A. squarrosum populations to cope successfully with the unpredictable desert environment. |
| 学科主题 | Plant Sciences |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1095-8290 |
| WOS关键词 | ECOLOGICAL SIGNIFICANCE ; SEROTINOUS PLANTS ; SAND DUNES ; GERMINATION ; DESERT ; STORAGE ; DISPERSAL ; RELEASE ; CLIMATE ; CHINA |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000340434200008 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | Key Basic Research and Development Plan of China [2010CB951304] ; National Key Technology RD Program [2012BAD16B03] ; National Natural Science Foundation [31370705] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27156]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Walck, Jeffrey L.] Middle Tennessee State Univ, Dept Biol, Evolut & Ecol Grp, Murfreesboro, TN 37132 USA |
| 推荐引用方式 GB/T 7714 | Gao, Ruiru,Yang, Xuejun,Yang, Fan,et al. Aerial and soil seed banks enable populations of an annual species to cope with an unpredictable dune ecosystem[J]. ANNALS OF BOTANY,2014,114(2):279-287. |
| APA | Gao, Ruiru,Yang, Xuejun,Yang, Fan,Wei, Lingling,Huang, Zhenying,&Walck, Jeffrey L..(2014).Aerial and soil seed banks enable populations of an annual species to cope with an unpredictable dune ecosystem.ANNALS OF BOTANY,114(2),279-287. |
| MLA | Gao, Ruiru,et al."Aerial and soil seed banks enable populations of an annual species to cope with an unpredictable dune ecosystem".ANNALS OF BOTANY 114.2(2014):279-287. |
入库方式： OAI收割
来源：植物研究所
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