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. Author manuscript; available in PMC: 2017 Aug 30.
Published in final edited form as: Funct Ecol. 2017 Aug 4;31(8):1637–1646. doi: 10.1111/1365-2435.12850

Table 3.

Effects of treatments and their interactions on diversity-dependent variables

Ecosystem stability
 Asynchrony
 Evenness
 H′
d.f. F P F P F P F P
R 1354   0·7   0·394 0·8 0·370 30·7 <0·001 169·2 <0·001
N 1354 40·0 <0·001 8·1 0·005   0·0   0·991      6·3   0·013
F 1354   3·3   0·069 2·0 0·159   0·1   0·779      0·2   0·627
M 1354   4·8   0·030 7·9 0·005   0·7   0·409      0·0   0·933
F × M 1354   0·2   0·645 0·1 0·759   0·3   0·603      0·1   0·789

Results of two-way ANCOVA (without treatment × species richness interaction term) for the effects of species richness (R), the rate (N) and the frequency (F) of N addition, mowing (M), and their interactions on ecosystem stability, species asynchrony, evenness, and H', using species richness as a covariate and the rate of N addition as a continuous variable. d.f., degrees of freedom. F- and P-values are given.