气候变化领域集成服务门户(CCPortal): Metabolic compensation constrains the temperature dependence of gross primary production

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DOI	10.1111/ele.12820
	Metabolic compensation constrains the temperature dependence of gross primary production
	Padfield D.; Lowe C.; Buckling A.; Ffrench-Constant R.; Student Research Team; Jennings S.; Shelley F.; Ólafsson J.S.; Yvon-Durocher G.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:10
英文摘要	Gross primary production (GPP) is the largest flux in the carbon cycle, yet its response to global warming is highly uncertain. The temperature dependence of GPP is directly linked to photosynthetic physiology, but the response of GPP to warming over longer timescales could also be shaped by ecological and evolutionary processes that drive variation in community structure and functional trait distributions. Here, we show that selection on photosynthetic traits within and across taxa dampens the effects of temperature on GPP across a catchment of geothermally heated streams. Autotrophs from cold streams had higher photosynthetic rates and after accounting for differences in biomass among sites, biomass-specific GPP was independent of temperature in spite of a 20 °C thermal gradient. Our results suggest that temperature compensation of photosynthetic rates constrains the long-term temperature dependence of GPP, and highlights the importance of considering physiological, ecological and evolutionary mechanisms when predicting how ecosystem-level processes respond to warming. © 2017 The Authors Ecology Letters published by CNRS and John Wiley & Sons Ltd
英文关键词	Global warming; gross primary production; metabolic theory
学科领域	biomass; carbon cycle; ecosystem; photosynthesis; temperature; Biomass; Carbon Cycle; Ecosystem; Photosynthesis; Temperature
语种	英语
scopus关键词	biomass; carbon cycle; ecosystem; photosynthesis; temperature; Biomass; Carbon Cycle; Ecosystem; Photosynthesis; Temperature
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/118322
作者单位	Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall, TR10 9EZ, United Kingdom; Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Penryn, Cornwall, TR10 9FE, United Kingdom; Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, NR33 0HT, United Kingdom; School of Environmental Sciences, Norwich Research Park, University of East Anglia, Norwich, NR4 7TJ, United Kingdom; International Council for the Exploration of the Sea, H. C. Andersens Boulevard 44-46, Copenhagen V, 1553, Denmark; School of Biological and Chemical Sciences, Queen Mary University of London, London, E1 4NS, United Kingdom; Marine and Freshwater Research Institute, Árleyni 22, Reykjavik, 112, Iceland
推荐引用方式 GB/T 7714	Padfield D.,Lowe C.,Buckling A.,et al. Metabolic compensation constrains the temperature dependence of gross primary production[J],2017,20(10).
APA	Padfield D..,Lowe C..,Buckling A..,Ffrench-Constant R..,Student Research Team.,...&Yvon-Durocher G..(2017).Metabolic compensation constrains the temperature dependence of gross primary production.Ecology Letters,20(10).
MLA	Padfield D.,et al."Metabolic compensation constrains the temperature dependence of gross primary production".Ecology Letters 20.10(2017).