Reciprocal transplants support a plasticity-first scenario during colonisation of a large hyposaline basin by a marine macro alga

Table 1 ANOVA (split-plot design) analysing growth of adventitious branches during 6 months in a reciprocal transplant experiments as an effect of salinity (4 and 24‰), species and origin

Source	df	SS	MS	F	P
A. Baltic Sea F. radicans vs. F. vesiculosus
Species	1	0.688	0.688	2.191	0.148
Residuals	36	11.312	0.314
Salinity	1	4.782	4.782	35.67	<0.001
Species*salinity	1	0.662	0.662	4.939	0.033
Residuals	36	4.826	0.134
B. Baltic Sea F. vesiculosus vs. North Sea F. vesiculosus
Origin	1	<0.001	<0.001	<0.001	0.985
Residuals	36	10.62	0.295
Salinity	1	0.052	0.052	0.375	0.544
Origin*salinity	1	7.689	7.689	55.757	<0.001
Residuals	36	4.964	0.138

A. Comparison of growth rates between F. radicans and F. vesiculosus from a sympatric site in the Baltic Sea. B. Comparison of growth rates between F. vesiculosus from North Sea and Baltic Sea. See also Fig. 3a

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