DOI: 10.1111/ele.12542
Scopus记录号: 2-s2.0-84955289486
论文题名: Phylogenetic structural equation modelling reveals no need for an 'origin' of the leaf economics spectrum
作者: Mason C.M. ; Goolsby E.W. ; Humphreys D.P. ; Donovan L.A.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期: 1 起始页码: 54
结束页码: 61
语种: 英语
英文关键词: Leaf lifespan
; Leaf mass per area
; Nitrogen
; Photosynthesis
; Phylogenetic path analysis
Scopus关键词: Helianthus
; biological model
; classification
; photosynthesis
; phylogeny
; physiology
; plant leaf
; sunflower
; Helianthus
; Models, Biological
; Photosynthesis
; Phylogeny
; Plant Leaves
英文摘要: The leaf economics spectrum (LES) is a prominent ecophysiological paradigm that describes global variation in leaf physiology across plant ecological strategies using a handful of key traits. Nearly a decade ago, Shipley et al. (2006) used structural equation modelling to explore the causal functional relationships among LES traits that give rise to their strong global covariation. They concluded that an unmeasured trait drives LES covariation, sparking efforts to identify the latent physiological trait underlying the 'origin' of the LES. Here, we use newly developed phylogenetic structural equation modelling approaches to reassess these conclusions using both global LES data as well as data collected across scales in the genus Helianthus. For global LES data, accounting for phylogenetic non-independence indicates that no additional unmeasured traits are required to explain LES covariation. Across datasets in Helianthus, trait relationships are highly variable, indicating that global-scale models may poorly describe LES covariation at non-global scales. Copyright © 2016 John Wiley & Sons Ltd/CNRS. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107838
Appears in Collections: 气候减缓与适应
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作者单位: Department of Plant Biology, University of Georgia, Athens, GA, United States; Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, United States; Department of Integrative Biology, University of Texas, Austin, TX, United States
Recommended Citation:
Mason C.M.,Goolsby E.W.,Humphreys D.P.,et al. Phylogenetic structural equation modelling reveals no need for an 'origin' of the leaf economics spectrum[J]. Ecology Letters,2016-01-01,19(1)