GSTDTAP  > 资源环境科学
DOI10.1111/ele.12870
Eco-energetic consequences of evolutionary shifts in body size
Malerba, Martino E.; White, Craig R.; Marshall, Dustin J.
2018
发表期刊ECOLOGY LETTERS
ISSN1461-023X
EISSN1461-0248
出版年2018
卷号21期号:1页码:54-62
文章类型Article
语种英语
国家Australia
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. 1year), 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.


英文关键词Allometry artificial selection evolutionary size shift experimental evolution geometric biology metabolism net energy flux primary production scaling
领域资源环境
收录类别SCI-E
WOS记录号WOS:000418133700006
WOS关键词LIFE-HISTORY EVOLUTION ; CAENORHABDITIS-ELEGANS ; MARINE-PHYTOPLANKTON ; ONTOGENIC GROWTH ; CELL-SIZE ; TEMPERATURE ; CHLOROPHYLL ; POPULATION ; SELECTION ; PHOTOSYNTHESIS
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/31456
专题资源环境科学
作者单位Monash Univ, Ctr Geometr Biol, Sch Biol Sci, Melbourne, Vic 3800, Australia
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Malerba, Martino E.,White, Craig R.,Marshall, Dustin J.. Eco-energetic consequences of evolutionary shifts in body size[J]. ECOLOGY LETTERS,2018,21(1):54-62.
APA Malerba, Martino E.,White, Craig R.,&Marshall, Dustin J..(2018).Eco-energetic consequences of evolutionary shifts in body size.ECOLOGY LETTERS,21(1),54-62.
MLA Malerba, Martino E.,et al."Eco-energetic consequences of evolutionary shifts in body size".ECOLOGY LETTERS 21.1(2018):54-62.
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