DOI: 10.1016/j.palaeo.2014.07.015
论文题名: Deriving temperature estimates from Southern Hemisphere leaves
作者: Kennedy E.M. ; Arens N.C. ; Reichgelt T. ; Spicer R.A. ; Spicer T.E.V. ; Stranks L. ; Yang J.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2014
卷: 412 起始页码: 80
结束页码: 90
语种: 英语
英文关键词: CLAMP
; Leaf Margin Analysis
; New Zealand
; Palaeoclimate analysis
; Southern Hemisphere
英文摘要: The percentage of woody dicots with entire-margined leaves in a flora is known to be positively correlated with mean annual temperature (Leaf Margin Analysis - LMA) but this relationship is not globally uniform. In particular the floras of Australia and New Zealand have been regarded as displaying a different physiognomic relationship to climate than floras seen in the Northern Hemisphere. This difference is more marked in New Zealand where the LMA relationship appears entirely absent. Here we amass data for both Northern and Southern hemispheres using standard protocols and show that regional variations in the leaf margin-mean annual temperature relationship are real but become less significant when other characters are included. Even New Zealand falls into line and most of the mean annual temperature signal in New Zealand floras is encoded in non-margin features. We introduce a new CLAMP (Climate Leaf Analysis Multivariate Program) calibration dataset for the Southern Hemisphere, comprising leaf physiognomic data from Argentina, Bolivia, South Africa, Australia, New Zealand and other Pacific Islands that offers comparable precision for climate prediction to similar datasets derived from the Northern Hemisphere. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69221
Appears in Collections: 过去全球变化的重建
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作者单位: GNS Science, P.O. Box 30-368, Lower Hutt, New Zealand; Department of Geoscience, Hobart and William Smith Colleges, Geneva, NY, United States; Department of Geology, University of Otago, P.O. Box 56, Dunedin, New Zealand; The Open University, Milton Keynes, United Kingdom; Institute of Botany, Chinese Academy of Sciences, eijing, China; 1 The Long House, Main Street, Willersey, Broadway, United Kingdom
Recommended Citation:
Kennedy E.M.,Arens N.C.,Reichgelt T.,et al. Deriving temperature estimates from Southern Hemisphere leaves[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2014-01-01,412