气候变化领域集成服务门户(CCPortal): Eco-energetic consequences of evolutionary shifts in body size

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DOI	10.1111/ele.12870
	Eco-energetic consequences of evolutionary shifts in body size
	Malerba M.E.; White C.R.; Marshall D.J.
发表日期	2018
ISSN	1461023X
卷号	21 期号:1
英文摘要	Size imposes physiological and ecological constraints upon all organisms. Theory abounds on how energy flux covaries with body size, yet causal links are often elusive. As a more direct way to assess the role of size, we used artificial selection to evolve the phytoplankton species Dunaliella tertiolecta towards smaller and larger body sizes. Within 100 generations (c. 1 year), we generated a fourfold difference in cell volume among selected lineages. Large-selected populations produced four times the energy than small-selected populations of equivalent total biovolume, but at the cost of much higher volume-specific respiration. These differences in energy utilisation between large (more productive) and small (more energy-efficient) individuals were used to successfully predict ecological performance (r and K) across novel resource regimes. We show that body size determines the performance of a species by mediating its net energy flux, with worrying implications for current trends in size reduction and for global carbon cycles. © 2017 John Wiley & Sons Ltd/CNRS
英文关键词	Allometry; artificial selection; evolutionary size shift; experimental evolution; geometric biology; metabolism; net energy flux; primary production; scaling
语种	英语
scopus关键词	Dunaliella tertiolecta; body size; cell size; ecology; evolution; phytoplankton; Biological Evolution; Body Size; Cell Size; Ecology; Phytoplankton
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/121372
作者单位	Centre of Geometric Biology, School of Biological Sciences, Monash University, Melbourne, VIC 3800, Australia
推荐引用方式 GB/T 7714	Malerba M.E.,White C.R.,Marshall D.J.. Eco-energetic consequences of evolutionary shifts in body size[J],2018,21(1).
APA	Malerba M.E.,White C.R.,&Marshall D.J..(2018).Eco-energetic consequences of evolutionary shifts in body size.Ecology Letters,21(1).
MLA	Malerba M.E.,et al."Eco-energetic consequences of evolutionary shifts in body size".Ecology Letters 21.1(2018).