| Nitrogen Level Changes the Interactions between a Native (Scirpus triqueter) and an Exotic Species (Spartina anglica) in Coastal China | |
| Li, Hong-li1,2; Lei, Guang-chun1; Zhi, Ying-biao2; An, Shu-qing2,3; Huang, He-ping4; Ouyang, Yan2; Zhao, Lei2; Deng, Zi-fa2; Liu, Yu-hong5 | |
| 发表期刊 | PLOS ONE
 |
| ISSN | 1932-6203 |
| 2011-10-05 | |
| 卷号 | 6期号:10页码:e25629 |
| 关键词 | Inter-specific Competition Salt-marsh Plants Hydrilla-verticillata Environmental-factors Invasive Plant New-zealand Salinity Community Zonation Growth |
| 产权排序 | [Li, Hong-li; Lei, Guang-chun] Beijing Forestry Univ, Coll Nat Conservat, Beijing, Peoples R China; [Li, Hong-li; Zhi, Ying-biao; An, Shu-qing; Ouyang, Yan; Zhao, Lei; Deng, Zi-fa] Nanjing Univ, State Key Lab Pollut Control & Resource Reuse, Sch Life Sci, Nanjing 210008, Peoples R China; [An, Shu-qing] Nanjing Univ, Inst Wetland Ecol, Sch Life Sci, Nanjing 210008, Peoples R China; [Huang, He-ping] Jiangxi Univ Finance & Econ, Sch Tourism & Urban Management, Nanchang, Peoples R China; [Liu, Yu-hong] CAS, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai, Peoples R China |
| 通讯作者 | Li, HL (reprint author), Beijing Forestry Univ, Coll Nat Conservat, Beijing, Peoples R China |
| 作者部门 | 滨海湿地实验室 |
| 英文摘要 | The exotic species Spartina anglica, introduced from Europe in 1963, has been experiencing a decline in the past decade in coastal China, but the reasons for the decline are still not clear. It is hypothesized that competition with the native species Scirpus triqueter may have played an important role in the decline due to niche overlap in the field. We measured biomass, leaf number and area, asexual reproduction and relative neighborhood effect (RNE) of the two species in both monoculture and mixture under three nitrogen levels (control, low and high). S. anglica showed significantly lower biomass accumulation, leaf number and asexual reproduction in mixture than in monoculture. The inter- and intra-specific RNE of S. anglica were all positive, and the inter- specific RNE was significantly higher than the intra-specific RNE in the control. For S. triqueter, interand intra-specific RNE were negative at the high nitrogen level but positive in the control and at the low nitrogen level. This indicates that S. triqueter exerted an asymmetric competitive advantage over S. anglica in the control and low nitrogen conditions; however, S. anglica facilitated growth of S. triqueter in high nitrogen conditions. Nitrogen level changed the interactions between the two species because S. triqueter better tolerated low nitrogen. Since S. anglica is increasingly confined to upper, more nitrogen-limited marsh areas in coastal China, increased competition from S. triqueter may help explain its decline.; The exotic species Spartina anglica, introduced from Europe in 1963, has been experiencing a decline in the past decade in coastal China, but the reasons for the decline are still not clear. It is hypothesized that competition with the native species Scirpus triqueter may have played an important role in the decline due to niche overlap in the field. We measured biomass, leaf number and area, asexual reproduction and relative neighborhood effect (RNE) of the two species in both monoculture and mixture under three nitrogen levels (control, low and high). S. anglica showed significantly lower biomass accumulation, leaf number and asexual reproduction in mixture than in monoculture. The inter- and intra-specific RNE of S. anglica were all positive, and the inter- specific RNE was significantly higher than the intra-specific RNE in the control. For S. triqueter, interand intra-specific RNE were negative at the high nitrogen level but positive in the control and at the low nitrogen level. This indicates that S. triqueter exerted an asymmetric competitive advantage over S. anglica in the control and low nitrogen conditions; however, S. anglica facilitated growth of S. triqueter in high nitrogen conditions. Nitrogen level changed the interactions between the two species because S. triqueter better tolerated low nitrogen. Since S. anglica is increasingly confined to upper, more nitrogen-limited marsh areas in coastal China, increased competition from S. triqueter may help explain its decline. |
| 文章类型 | Article |
| 资助机构 | National Forestry Special Public Foundation of China[200804005]; Beijing Forestry University[BLX2009-;021]; Fundamental Research Funds for the Central Universities[2011-34]; Forestry Soft-Science Research Project[2008-R02] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | INTER-SPECIFIC COMPETITION ; SALT-MARSH PLANTS ; HYDRILLA-VERTICILLATA ; ENVIRONMENTAL-FACTORS ; INVASIVE PLANT ; NEW-ZEALAND ; SALINITY ; COMMUNITY ; ZONATION ; GROWTH |
| 研究领域[WOS] | Science & Technology - Other Topics |
| WOS记录号 | WOS:000295966900039 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/5318 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_滨海湿地实验室 |
| 作者单位 | 1.Beijing Forestry Univ, Coll Nat Conservat, Beijing, Peoples R China 2.Nanjing Univ, State Key Lab Pollut Control & Resource Reuse, Sch Life Sci, Nanjing 210008, Peoples R China 3.Nanjing Univ, Inst Wetland Ecol, Sch Life Sci, Nanjing 210008, Peoples R China 4.Jiangxi Univ Finance & Econ, Sch Tourism & Urban Management, Nanchang, Peoples R China 5.CAS, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Hong-li,Lei, Guang-chun,Zhi, Ying-biao,et al. Nitrogen Level Changes the Interactions between a Native (Scirpus triqueter) and an Exotic Species (Spartina anglica) in Coastal China[J]. PLOS ONE,2011,6(10):e25629. |
| APA | Li, Hong-li.,Lei, Guang-chun.,Zhi, Ying-biao.,An, Shu-qing.,Huang, He-ping.,...&Liu, Yu-hong.(2011).Nitrogen Level Changes the Interactions between a Native (Scirpus triqueter) and an Exotic Species (Spartina anglica) in Coastal China.PLOS ONE,6(10),e25629. |
| MLA | Li, Hong-li,et al."Nitrogen Level Changes the Interactions between a Native (Scirpus triqueter) and an Exotic Species (Spartina anglica) in Coastal China".PLOS ONE 6.10(2011):e25629. |
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