Species richness and intraspecific variation interactively shape marine diatom community functioning

被引:1
作者
Thomas, Patrick K. [1 ,2 ]
Jacob, Marrit [1 ,3 ]
Acevedo-Trejos, Esteban [4 ,5 ]
Hillebrand, Helmut [1 ,6 ,7 ]
Striebel, Maren [1 ]
机构
[1] Carl von Ossietzky Univ Oldenburg, Inst Chem & Biol Marine Environm ICBM, Plankton Ecol Lab, Sch Math & Sci, Schleusenstr 1, D-26382 Oldenburg, Germany
[2] Swiss Fed Inst Aquat Sci & Technol EAWAG, Dept Aquat Ecol, Dubendorf, Switzerland
[3] Univ Bremen, Dept Chem & Biol, Marine Chem, Bremen, Germany
[4] Leibniz Ctr Trop Marine Res ZMT, Syst Ecol Grp, Bremen, Germany
[5] GFZ German Res Ctr Geosci, Helmholtz Ctr Potsdam, Earth Surface Proc Modelling, Potsdam, Germany
[6] Carl von Ossietzky Univ Oldenburg, Helmholtz Inst Funct Marine Biodivers, Oldenburg, Germany
[7] Alfred Wegener Inst, Helmholtz Ctr Polar & Marine Res AWI, Bremerhaven, Germany
关键词
CELL-SIZE; PSEUDO-NITZSCHIA; PHYTOPLANKTON; TRAIT; BIODIVERSITY; PRODUCTIVITY; VARIABILITY; ECOLOGY;
D O I
10.1002/lol2.10398
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Biodiversity generally increases productivity in ecosystems; however, this is mediated by the specific functional traits that come with biodiversity loss or gain and how these traits interact with environmental conditions. Most biodiversity studies evaluate the effects of species richness alone, despite our increasing understanding that intraspecific diversity can have equally strong impacts. Here, we manipulate both species richness and intraspecific richness (i.e., number of distinct strains) in marine diatom communities to explicitly test the relative importance of species and strain richness for biomass and trait diversity in six distinct temperature/nutrient environments. We show that species and strain richness both have significant effects on biomass and growth rates, but more importantly, they interact with each other, indicating that cross-species diversity effects depend on within-species diversity and vice versa. This intertwined relationship thus calls for more integrative approaches quantifying the relative importance of distinct biodiversity components and environmental context on ecosystem functioning.
引用
收藏
页码:612 / 623
页数:12
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