Functional traits explain light and size response of growth rates in tropical tree species.
Functional traits explain light and size response of growth rates in tropical tree species.
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DOI：
10.1890/12-0622.1
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发表时间：
2012-12
期刊：
影响因子：
4.8
通讯作者：
N. Rüger;N. Rüger;C. Wirth;S. Wright;R. Condit
中科院分区：
文献类型：
--
作者：
N. Rüger;N. Rüger;C. Wirth;S. Wright;R. Condit
功能性状和平均或潜在的人口统计率之间的关系提供了深入了解热带树种的生活史策略的功能限制和权衡。我们扩展了这一框架，通过分解171个新热带树种的13万棵树的生长速率为内在生长和生长对光和大小的响应。我们将这些生长特征与多个功能性状（木材密度，成年身高，种子质量，叶性状）在一个分层贝叶斯模型，占测量误差和种内变异的功能性状。木材密度是决定所有三个生长特性的最重要的性状。内在增长率也与成年身高密切相关，而所有性状都有助于光反应。我们的分析产生了一个预测模型，允许估计的基础上，一些容易测量的形态特征的稀有物种的生长特性。
Relationships between functional traits and average or potential demographic rates have provided insight into the functional constraints and trade-offs underlying life-history strategies of tropical tree species. We have extended this framework by decomposing growth rates of -130 000 trees of 171 Neotropical tree species into intrinsic growth and the response of growth to light and size. We related these growth characteristics to multiple functional traits (wood density, adult stature, seed mass, leaf traits) in a hierarchical Bayesian model that accounted for measurement error and intraspecific variability of functional traits. Wood density was the most important trait determining all three growth characteristics. Intrinsic growth rates were additionally strongly related to adult stature, while all traits contributed to light response. Our analysis yielded a predictive model that allows estimation of growth characteristics for rare species on the basis of a few easily measurable morphological traits.