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Intraspecific and intraindividual trait variability decrease with tree richness in a subtropical tree biodiversity experiment

delete2025-12-11
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P
Pablo Castro Sánchez‐Bermejo *
C
Carlos P. Carmona
M
Meredith C. Schuman
R
Raquel Benavides
L
Lena Sachsenmaier
S
Shan Li
X
Xiaojuan Liu
S
Sylvia Haider
DOI:10.1038/s41467-025-67265-8delete
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摘要

摘要

En 中文
种内表型变异性对局部树种丰富度的响应。然而,我们缺乏关于不同来源的性状变异性如何塑造树木-树木相互作用的证据。沿着从单一到八种树种的多样性梯度,本研究收集了381棵树上的4568片叶子,以研究种内和个体内叶性状变异性变化,并评估其对群落功能多样性的贡献。功能性状的种内性状变异性随树种丰富度增加而减少,而光谱性状揭示了个体内变异性的类似响应。同种树木之间的功能重叠通过个体内变异增加,但通过种内变异减少,这意味着种内变异性可能减少种内竞争相互作用,而个体内变异性可能源于林冠内光照差异。最后,种内和个体内变异性分别解释了群落功能丰富度和功能分化的高比例,尤其是在混合群落中。我们的发现强调,精细尺度变异性影响树木-树木相互作用并驱动局部功能多样性。在森林中,性状表达受到树木-树木相互作用的影响。Castro Sánchez-Bermejo等人展示了树种表型变异性如何随树种多样性减少,并显著贡献于森林的功能多样性。
Keyword:
Intraspecific variability
Intraindividual variability
Tree species richness
Functional diversity
Trait variation
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Nature Communications
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Institute of Ecology
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university of zurich
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Universidad Politécnica de Madrid
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consejo superior de investigaciones científicas (csic)
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Institute of Biology
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chinese academy of sciences
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