气候变化领域集成服务门户(CCPortal): Environmental stability affects phenotypic evolution in a globally distributed marine picoplankton

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DOI	https://doi.org/10.1594/PANGAEA.863127
	Environmental stability affects phenotypic evolution in a globally distributed marine picoplankton
	Schaum; Elisa; Rost; Björn; Collins; Sinéad
发布日期	2016-07-20
数据集类型	dataset
英文关键词	Biomass/Abundance/Elemental composition ; Bottles or small containers/Aquaria ( 20 L) ; Chlorophyta ; Growth/Morphology ; Laboratory experiment ; Laboratory strains ; Not applicable ; Ostreococcus sp. ; Pelagos ; Phytoplankton ; Plantae ; Primary production/Photosynthesis ; Respiration ; Single species
英文简介	Marine phytoplankton can evolve rapidly when confronted with aspects of climate change because of their large population sizes and fast generation times. Despite this, the importance of environment fluctuations, a key feature of climate change, has received little attention-selection experiments with marine phytoplankton are usually carried out in stable environments and use single or few representatives of a species, genus or functional group. Here we investigate whether and by how much environmental fluctuations contribute to changes in ecologically important phytoplankton traits such as C:N ratios and cell size, and test the variability of changes in these traits within the globally distributed species Ostreococcus. We have evolved 16 physiologically distinct lineages of Ostreococcus at stable high CO2 (1031±87 µatm CO2, SH) and fluctuating high CO2 (1012±244 µatm CO2, FH) for 400 generations. We find that although both fluctuation and high CO2 drive evolution, FH-evolved lineages are smaller, have reduced C:N ratios and respond more strongly to further increases in CO2 than do SH-evolved lineages. This indicates that environmental fluctuations are an important factor to consider when predicting how the characteristics of future phytoplankton populations will have an impact on biogeochemical cycles and higher trophic levels in marine food webs.
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/216794
推荐引用方式 GB/T 7714	Schaum,Elisa,Rost,et al. Environmental stability affects phenotypic evolution in a globally distributed marine picoplankton.2016-07-20.https://doi.org/10.1594/PANGAEA.863127.