气候变化领域集成服务门户(CCPortal): Size-abundance rules? Evolution changes scaling relationships between size, metabolism and demography

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DOI	10.1111/ele.13326
	Size-abundance rules? Evolution changes scaling relationships between size, metabolism and demography
	Malerba M.E.; Marshall D.J.
发表日期	2019
ISSN	1461023X
卷号	22 期号:9
英文摘要	Body size often strongly covaries with demography across species. Metabolism has long been invoked as the driver of these patterns, but tests of causal links between size, metabolism and demography within a species are exceedingly rare. We used 400 generations of artificial selection to evolve a 2427% size difference in the microalga Dunaliella tertiolecta. We repeatedly measured size, energy fluxes and demography across the evolved lineages. Then, we used standard metabolic theory to generate predictions of how size and demography should covary based on the scaling of energy fluxes that we measured. The size dependency of energy remained relatively consistent in time, but metabolic theory failed to predict demographic rates, which varied unpredictably in strength and even sign across generations. Classic theory holds that size affects demography via metabolism – our results suggest that both metabolism and size act separately to drive demography and that among-species patterns may not predict within-species processes. © 2019 John Wiley & Sons Ltd/CNRS
英文关键词	Allometry; artificial selection; Centre for Geometric Biology; demographic parameters; evolutionary size-shift; experimental evolution; metabolic ecology; metabolic energy; scaling
语种	英语
scopus关键词	Dunaliella tertiolecta; biological model; biomass; cell size; Chlorophyceae; cytology; energy metabolism; metabolism; population density; Biomass; Cell Size; Chlorophyceae; Energy Metabolism; Models, Biological; Population Density
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/121188
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.,Marshall D.J.. Size-abundance rules? Evolution changes scaling relationships between size, metabolism and demography[J],2019,22(9).
APA	Malerba M.E.,&Marshall D.J..(2019).Size-abundance rules? Evolution changes scaling relationships between size, metabolism and demography.Ecology Letters,22(9).
MLA	Malerba M.E.,et al."Size-abundance rules? Evolution changes scaling relationships between size, metabolism and demography".Ecology Letters 22.9(2019).