globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12915
Scopus记录号: 2-s2.0-85042119624
论文题名:
Density-dependent survival varies with species life-history strategy in a tropical forest
作者: Zhu Y.; Queenborough S.A.; Condit R.; Hubbell S.P.; Ma K.P.; Comita L.S.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2018
卷: 21, 期:4
起始页码: 506
结束页码: 515
语种: 英语
英文关键词: fast–slow continuum ; growth-mortality trade-off ; intraspecific competition ; Janzen–Connell hypothesis ; niche partitioning ; regeneration niche ; shade tolerance ; species coexistence
英文摘要: Species coexistence in diverse communities likely results from multiple interacting factors. Mechanisms such as conspecific negative density dependence (CNDD) and varying life-history strategies related to resource partitioning are known to influence plant fitness, and thereby community composition and diversity. However, we have little understanding of how these mechanisms interact and how they vary across life stages. Here, we document the interaction between CNDD and life-history strategy, based on growth-mortality trade-offs, from seedling to adult tree for 47 species in a tropical forest. Species’ life-history strategies remained consistent across stages: fast-growing species had higher mortality than slow-growing species at all stages. In contrast, mean CNDD was strongest at early life stages (i.e. seedling, sapling). Fast-growing species tended to suffer greater CNDD than slow-growing species at several, but not all life stages. Overall, our results demonstrate that coexistence mechanisms interact across multiple life stages to shape diverse tree communities. © 2018 John Wiley & Sons Ltd/CNRS
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107470
Appears in Collections:气候减缓与适应

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作者单位: School of Forestry and Environmental Studies, Yale University, New Haven, CT, United States; State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, 20 Nanxincun, Xiangshan, Beijing, China; Morton Arboretum, 4100 Illinois Rte. 53, Lisle, IL, United States; Field Museum of Natural History, 1400 S. Lake Shore Dr., Chicago, IL, United States; Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, United States; Smithsonian Tropical Research Institute, Box 0843-03092, Balboa, Ancón, Panama

Recommended Citation:
Zhu Y.,Queenborough S.A.,Condit R.,et al. Density-dependent survival varies with species life-history strategy in a tropical forest[J]. Ecology Letters,2018-01-01,21(4)
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