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RDA of OTU compositions in dependence of ecological variables.

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posted on 26.04.2017, 17:30 by Julia A. F. Langer, Rahul Sharma, Susanne I. Schmidt, Sebastian Bahrdt, Henriette G. Horn, María Algueró-Muñiz, Bora Nam, Eric P. Achterberg, Ulf Riebesell, Maarten Boersma, Marco Thines, Klaus Schwenk

Analysis of (A) filter samples, based on the 18S presence-absence-transformed data, (B) net samples, based on the 18S presence-absence-transformed data, (C) filter samples, based on the 18S sequence read data and (D) net samples, based on the 18S sequence read data. Mesocosms are indicated by their number. High CO2 (2, 4, 6) and ambient CO2 (1, 5, 9). OTUs are represented by grey plus signs. Time points are indicated by color: t17 = red, t41 = purple, t65 = green and t97 = blue. Explanatory variables are displayed as vectors, with NO3- / NO2- = nitrate and nitrite [μmol L-1], PO43- = phosphate [μmol L-1], temp. = temperature [°C], chl a = chlorophyll a [ng L-1], mesozoopl. = mesozooplankton [ind L-1]. Only significant ecological variables were retained for the respective RDA plot. Thus, variables shown vary for the four RDA plots.

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