| Functional traits and ecological niches as correlates of the interspecific growth-mortality trade-off among seedlings of 14 tropical tree species | |
Zhang, Caicai1 ; Gu, Rong1; Lin, Luxiang2,3; Russo, Sabrina E.
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| 2024 | |
| Source Publication | FUNCTIONAL ECOLOGY
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| ISSN | 0269-8463 |
| Issue | xPages:- |
| Abstract | 1. The interspecific trade-off between growth versus mortality rates of tree species is thought to be driven by functional biology and to contribute to species ecological niche differentiation. Yet, functional trait variation is often not strongly correlated with growth and mortality, and few studies have investigated the relationships of both traits and niches, specifically encompassing above and belowground resources, to the trade-off itself. These relationships are particularly relevant for seedlings, which must often survive resource limitation to reach larger size classes. 2. We investigated the functional basis of the interspecific growth-mortality trade-off and its relationship with ecological niches for seedlings of 14 tree species in a tropical forest in southwest China. 3. We found evidence for an interspecific growth-mortality trade-off at the seedling stage using 15 functional traits and 15 ecological niche variables. None of the organ-level traits correlated with growth, mortality, nor the trade-off, whereas specific stem length (SSL), a biomass allocation trait, was the only trait to have a significant correlation (positive). Moreover, light-defined niches were not correlated with growth, mortality or the trade-off, but soil-defined niches did. Species at the faster growth/higher mortality end of the trade-off were associated with higher fertility defined by lower soil bulk density and slope, and higher soil organic matter concentration and soil total nitrogen. 4. Our findings indicate the importance of stem elongation and soil fertility for growth, mortality and their trade-off at the seedling stage in this Asian tropical forest. Our findings contrast with analogous studies in neotropical forests showing the importance of photosynthesis-related leaf traits related to insolation. Therefore, the functional drivers of demographic rates and trade-offs, as well as their consequences for ecological niches, can vary among forests, likely owing to differences in biogeography, canopy disturbance rates, topography and soil properties. Moreover, the effects of functional trait variation on demographic rates and trade-offs may be better revealed when biomass allocation is accounted for in a whole-plant context. |
| Keyword | SOIL RESOURCE AVAILABILITY WOOD SPECIFIC-GRAVITY HABITAT SPECIALIZATION INTRASPECIFIC VARIATION BIOMASS ALLOCATION NEOTROPICAL TREE BULK-DENSITY FOREST PERFORMANCE RATES |
| Subject Area | Ecology |
| DOI | 10.1111/1365-2435.14624 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001273272000001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/14339 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Kunming, Peoples R China 2.Dali Univ, Inst Eastern Himalaya Biodivers Res, Dali, Yunnan, Peoples R China 3.Natl Forest Ecosyst Res Stn Xishuangbanna, Mengla, Yunnan, Peoples R China 4.Chinese Acad Sci, Southeast Asia Biodivers Res Inst, Naypyidaw, Myanmar 5.Russo, Sabrina E.] Univ Nebraska Lincoln, Sch Biol Sci, Lincoln, NE USA 6.Russo, Sabrina E.] Univ Nebraska Lincoln, Ctr Plant Sci Innovat, Lincoln, NE USA |
| Recommended Citation GB/T 7714 | Zhang, Caicai,Gu, Rong,Lin, Luxiang,et al. Functional traits and ecological niches as correlates of the interspecific growth-mortality trade-off among seedlings of 14 tropical tree species[J]. FUNCTIONAL ECOLOGY,2024(x):-. |
| APA | Zhang, Caicai,Gu, Rong,Lin, Luxiang,&Russo, Sabrina E..(2024).Functional traits and ecological niches as correlates of the interspecific growth-mortality trade-off among seedlings of 14 tropical tree species.FUNCTIONAL ECOLOGY(x),-. |
| MLA | Zhang, Caicai,et al."Functional traits and ecological niches as correlates of the interspecific growth-mortality trade-off among seedlings of 14 tropical tree species".FUNCTIONAL ECOLOGY .x(2024):-. |
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| Functional traits an（4017KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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