From seedlings to adults: Linking survival and leaf functional traits over ontogeny

IF 4.4 2区环境科学与生态学 Q1 ECOLOGY Ecology Pub Date : 2024-12-02 DOI:10.1002/ecy.4469

María Natalia Umaña, Jessica Needham, Claire Fortunel

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Abstract

As long‐lived tropical trees grow into the multi‐layered canopy and face different environmental conditions, the relationships between leaf traits and whole‐plant survival can vary over ontogeny. We tested the strength and direction of the relationships between leaf traits and long‐term survival data across life stages for woody species from a subtropical forest in Puerto Rico. Trait–survival relationships were largely consistent across ontogeny with conservative traits leading to higher survival rates. The stage‐specific relationship R2 increased by up to one order of magnitude compared to studies not considering ontogenetic trait variations. Stage‐specific traits were significant predictors of their corresponding stage‐specific survival: Seedlings traits were better predictors of seedling survival than adult traits, and adult traits were better predictors of maximum adult survival than seedling traits. Our results suggest that stage‐specific leaf traits reflect different strategies over ontogeny and can substantially improve predictability of survival models in tropical forests.

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从幼苗到成虫：个体发育中生存与叶片功能性状的联系

随着热带长寿树木生长到多层冠层，并面临不同的环境条件，叶片性状与整株存活之间的关系可能因个体发育而异。我们测试了来自波多黎各亚热带森林的木本物种的叶片性状与跨生命阶段长期生存数据之间的关系的强度和方向。性状与存活率的关系在个体发育中基本一致，保守性状导致较高的存活率。与不考虑个体发生性状变异的研究相比，阶段特异性关系R2增加了一个数量级。期特异性性状是相应期特异性存活率的显著预测因子：幼苗性状比成虫性状更能预测幼苗存活率，成虫性状比幼苗性状更能预测最大成虫存活率。我们的研究结果表明，特定阶段的叶片性状反映了不同的个体发生策略，可以大大提高热带森林生存模型的可预测性。

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来源期刊

Ecology 环境科学-生态学

CiteScore

8.30

自引率

2.10%

发文量

332

审稿时长

3 months

期刊介绍： Ecology publishes articles that report on the basic elements of ecological research. Emphasis is placed on concise, clear articles documenting important ecological phenomena. The journal publishes a broad array of research that includes a rapidly expanding envelope of subject matter, techniques, approaches, and concepts: paleoecology through present-day phenomena; evolutionary, population, physiological, community, and ecosystem ecology, as well as biogeochemistry; inclusive of descriptive, comparative, experimental, mathematical, statistical, and interdisciplinary approaches.