Reproductive investments driven by sex and altitude in sympatric Populus and Salix trees
文献类型：期刊论文
| 作者 | Lei, Yanbao1 ; Jiang, Yonglei1; Chen, Ke2; Duan, Baoli1; Zhang, Sheng1; Korpelainen, Helena3; Niinemets, Ulo4; Li, Chunyang5
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| 刊名 | TREE PHYSIOLOGY
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 37期号:11页码:1503-1514 |
| 关键词 | construction cost payback time reproductive investment Salicaceae species sexual dimorphism |
| ISSN号 | 0829-318X |
| DOI | 10.1093/treephys/tpx075 |
| 英文摘要 | The sex ratios of co-existing Populus and Salix vary depending on altitude and species: 1: 1 equlibrium sex ratios are observed at mid-altitude but skewed ones at high altitudes, where Populus shows male-biased and Salix female-biased sex ratios. However, the underlying ecological mechanisms are poorly known. Reproductive investments of Populus purdomii Rehd. and Salix magnifica Hemsl. were assessed at altitudes of 2000 and 2600 m in the Gongga Mountain by different metrics, including biomass, carbon (C), nitrogen (N) and phosphorus (P) concentrations and construction cost, and by estimating the payback time that combines energy gain and associated costs. Reproductive investment measured as C, N and P concentrations, and construction cost was higher in P. purdomii females at 2600 m. However, in S. magnifica, no difference was observed for biomass, C and N at 2600 m, but the investments for P and construction cost were even greater in males. The payback time showed no significant differences for the sexes at 2000 m, but it was shorter for P. purdomii males and S. magnifica females at 2600 m. We concluded that nutrient-and construction cost-based estimates of reproductive allocation can provide more informative insight into the cost of reproduction than does biomass, and together with the payback time they can supply an explanation for divergent sex ratios in Populus and Salix. Consequently, our results improve our understanding of the causes and consequences of sexual dimorphism in dioecious species. |
| 语种 | 英语 |
| WOS记录号 | WOS:000416400500006 |
| 出版者 | OXFORD UNIV PRESS |
| 源URL | [http://ir.imde.ac.cn/handle/131551/20661]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Li, Chunyang |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China 2.Southwest Univ Sci & Technol, Sch Life Sci & Engn, Mianyang 621010, Peoples R China 3.Univ Helsinki, Viikki Plant Sci Ctr, Dept Agr Sci, POB 27, FI-00014 Helsinki, Finland 4.Estonian Univ Life Sci, Inst Agr & Environm Sci, Kreutzwaldi 1, EE-51014 Tartu, Estonia 5.Hangzhou Normal Univ, Coll Life & Environm Sci, Hangzhou 310036, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lei, Yanbao,Jiang, Yonglei,Chen, Ke,et al. Reproductive investments driven by sex and altitude in sympatric Populus and Salix trees[J]. TREE PHYSIOLOGY,2017,37(11):1503-1514. |
| APA | Lei, Yanbao.,Jiang, Yonglei.,Chen, Ke.,Duan, Baoli.,Zhang, Sheng.,...&Li, Chunyang.(2017).Reproductive investments driven by sex and altitude in sympatric Populus and Salix trees.TREE PHYSIOLOGY,37(11),1503-1514. |
| MLA | Lei, Yanbao,et al."Reproductive investments driven by sex and altitude in sympatric Populus and Salix trees".TREE PHYSIOLOGY 37.11(2017):1503-1514. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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