Tracking climate vulnerability across spatial distribution and functional traits in Magnolia gentryi in the Peruvian tropical montane cloud forest

IF 2.4 2区生物学 Q2 PLANT SCIENCES American Journal of Botany Pub Date : 2024-09-05 DOI:10.1002/ajb2.16400

Ernesto C. Rodríguez-Ramírez, Frank Arroyo, Fressia N. Ames-Martínez, Agustina Rosa Andrés-Hernández

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Abstract

Premise

Understanding the responses of functional traits in tree species to climate variability is essential for predicting the future of tropical montane cloud forest (TMCF) tree species, especially in Andean montane environments where fog pockets act as moisture traps.

Methods

We studied the distribution of Magnolia gentryi, measured its spatial arrangement, identified local hotspots, and evaluated the extent to which climate-related factors are associated with its distribution. We then analyzed the variation in 13 functional traits of M. gentryi and the relationship with climate.

Results

Andean TMCF climatic factors constrain M. gentryi spatial distribution with significant patches or gaps that are associated with high precipitation and mean minimum temperature. The functional traits of M. gentryi are limited by the Andean TMCF climatic factors, resulting in reduced within-species variation in traits associated with water deficit.

Conclusions

The association between functional traits and climate oscillation is crucial for understanding the growth conditions of relict-endemic species and is essential for conservation efforts. Forest trait diversity and species composition change because of fluctuations in hydraulic safety-efficiency gradients.

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跟踪秘鲁热带山地云雾林中厚朴（Magnolia gentryi）在空间分布和功能特征方面的气候脆弱性。

前提：了解树种的功能特征对气候变异性的反应对于预测热带高山云雾林（TMCF）树种的未来至关重要，尤其是在安第斯高山环境中，因为那里的雾穴是一个湿气陷阱：我们研究了厚朴（Magnolia gentryi）的分布，测量了其空间分布，确定了局部热点，并评估了气候相关因素与其分布的关联程度。然后，我们分析了厚朴 13 种功能特征的变化以及与气候的关系：结果：安第斯山脉TMCF气候因子限制了玄参属植物的空间分布，形成了与高降水量和平均最低气温相关的重要斑块或缺口。玄参的功能特征受到安第斯TMCF气候因子的限制，导致缺水相关特征的种内变异减少：结论：功能特征与气候振荡之间的关联对于了解孑遗特有物种的生长条件至关重要，对保护工作也至关重要。森林性状多样性和物种组成会因水力安全-效率梯度的波动而改变。

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来源期刊

American Journal of Botany 生物-植物科学

CiteScore

4.90

自引率

6.70%

发文量

171

审稿时长

3 months

期刊介绍： The American Journal of Botany (AJB), the flagship journal of the Botanical Society of America (BSA), publishes peer-reviewed, innovative, significant research of interest to a wide audience of plant scientists in all areas of plant biology (structure, function, development, diversity, genetics, evolution, systematics), all levels of organization (molecular to ecosystem), and all plant groups and allied organisms (cyanobacteria, algae, fungi, and lichens). AJB requires authors to frame their research questions and discuss their results in terms of major questions of plant biology. In general, papers that are too narrowly focused, purely descriptive, natural history, broad surveys, or that contain only preliminary data will not be considered.