气候变化领域集成服务门户(CCPortal): Climate determines vascular traits in the ecologically diverse genus Eucalyptus

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DOI	10.1111/ele.12559
	Climate determines vascular traits in the ecologically diverse genus Eucalyptus
	Pfautsch S.; Harbusch M.; Wesolowski A.; Smith R.; Macfarlane C.; Tjoelker M.G.; Reich P.B.; Adams M.A.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:3
英文摘要	Current theory presumes that natural selection on vascular traits is controlled by a trade-off between efficiency and safety of hydraulic architecture. Hence, traits linked to efficiency, such as vessel diameter, should show biogeographic patterns; but critical tests of these predictions are rare, largely owing to confounding effects of environment, tree size and phylogeny. Using wood sampled from a phylogenetically constrained set of 28 Eucalyptus species, collected from a wide gradient of aridity across Australia, we show that hydraulic architecture reflects adaptive radiation of this genus in response to variation in climate. With increasing aridity, vessel diameters narrow, their frequency increases with a distribution that becomes gradually positively skewed and sapwood density increases while the theoretical hydraulic conductivity declines. Differences in these hydraulic traits appear largely genotypic in origin rather than environmentally plastic. Data reported here reflect long-term adaptation of hydraulic architecture to water availability. Rapidly changing climates, on the other hand, present significant challenges to the ability of eucalypts to adapt their vasculature. © 2016 John Wiley & Sons Ltd/CNRS.
英文关键词	Anatomy; Angiosperm tree; Aridity; Conduit diameter; Hydraulic conductivity; Vessel frequency distribution; Water availability; Wood density; Xylem
学科领域	adaptive radiation; anatomy; aridity; biogeography; climate change; climate effect; dicotyledon; genotype; hydraulic conductivity; morphometry; natural selection; phylogenetics; phylogeny; trade-off; water availability; wood; xylem; Australia; Eucalyptus; Magnoliophyta; anatomy and histology; Australia; climate; Eucalyptus; wood; Australia; Climate; Eucalyptus; Wood
语种	英语
scopus关键词	adaptive radiation; anatomy; aridity; biogeography; climate change; climate effect; dicotyledon; genotype; hydraulic conductivity; morphometry; natural selection; phylogenetics; phylogeny; trade-off; water availability; wood; xylem; Australia; Eucalyptus; Magnoliophyta; anatomy and histology; Australia; climate; Eucalyptus; wood; Australia; Climate; Eucalyptus; Wood
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118583
作者单位	Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia; Faculty of Agriculture and Environment, University of Sydney, 1 Central Avenue, Eveleigh, NSW 2015, Australia; CSIRO Land and Water Flagship, Floreat, WA 6014, Australia; Department of Forest Resources, College of Food, Agricultural, and Natural Resource Sciences, University of Minnesota, St. Paul, MN 55108, United States
推荐引用方式 GB/T 7714	Pfautsch S.,Harbusch M.,Wesolowski A.,et al. Climate determines vascular traits in the ecologically diverse genus Eucalyptus[J],2016,19(3).
APA	Pfautsch S..,Harbusch M..,Wesolowski A..,Smith R..,Macfarlane C..,...&Adams M.A..(2016).Climate determines vascular traits in the ecologically diverse genus Eucalyptus.Ecology Letters,19(3).
MLA	Pfautsch S.,et al."Climate determines vascular traits in the ecologically diverse genus Eucalyptus".Ecology Letters 19.3(2016).