Balance between facilitation and resource competition determines biomass-density relationships in plant populations
文献类型：期刊论文
| 作者 | Chu, Cheng-Jin1; Maestre, Fernando T.2; Xiao, Sa1; Weiner, Jacob3; Wang, You-Shi1; Duan, Zheng-Hu4; Wang, Gang1 |
| 刊名 | ECOLOGY LETTERS
 |
| 出版日期 | 2008-11-01 |
| 卷号 | 11期号:11页码:1189-1197 |
| 关键词 | Alpine meadow density dependence Elymus nutans individual-based model plant-plant interactions positive neighbour effects |
| ISSN号 | 1461-023X |
| DOI | 10.1111/j.1461-0248.2008.01228.x |
| 通讯作者 | Wang, Gang(wgmg36@lzu.edu.cn) |
| 英文摘要 | Theories based on competition for resources predict a monotonic negative relationship between population density and individual biomass in plant populations. They do not consider the role of facilitative interactions, which are known to be important in high stress environments. Using an individual-based 'zone-of-influence' model, we investigated the hypothesis that the balance between facilitative and competitive interactions determines biomass-density relationships. We tested model predictions with a field experiment on the clonal grass Elymus nutans in an alpine meadow. In the model, the relationship between mean individual biomass and density shifted from monotonic to humped as abiotic stress increased. The model results were supported by the field experiment, in which the greatest individual and population biomass were found at intermediate densities in a high-stress alpine habitat. Our results show that facilitation can affect biomass-density relationships. |
| 收录类别 | SCI |
| WOS关键词 | STRESS-GRADIENT HYPOTHESIS ; POSITIVE INTERACTIONS ; ABIOTIC STRESS ; BODY-SIZE ; ARID ENVIRONMENTS ; COMMUNITIES ; METAANALYSIS ; DEPENDENCE ; SYMMETRY ; INCREASE |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000260466400007 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556090 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wang, Gang |
| 作者单位 | 1.Lanzhou Univ, MOE Key Lab Arid & Grassland Ecol, Lanzhou 730000, Peoples R China 2.Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Area Biodiversidad & Conservac, Dept Biol & Geol, Mostoles 28933, Spain 3.Natl Ctr Ecol Anal & Synth, Santa Barbara, CA 93101 USA 4.Chinese Acad Sci, Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chu, Cheng-Jin,Maestre, Fernando T.,Xiao, Sa,et al. Balance between facilitation and resource competition determines biomass-density relationships in plant populations[J]. ECOLOGY LETTERS,2008,11(11):1189-1197. |
| APA | Chu, Cheng-Jin.,Maestre, Fernando T..,Xiao, Sa.,Weiner, Jacob.,Wang, You-Shi.,...&Wang, Gang.(2008).Balance between facilitation and resource competition determines biomass-density relationships in plant populations.ECOLOGY LETTERS,11(11),1189-1197. |
| MLA | Chu, Cheng-Jin,et al."Balance between facilitation and resource competition determines biomass-density relationships in plant populations".ECOLOGY LETTERS 11.11(2008):1189-1197. |
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来源：寒区旱区环境与工程研究所
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