Table 4.
Trait combination | r2 | AIC | |
---|---|---|---|
(A) With trait values on average of C−N+ treatment | |||
N supply | SL, LL, LDMC, SLA, TD, BF | 0·43 | −20·52 |
Cutting frequency | VE, LL, SLA, CC, ME | 0·64 | −51·43 |
N supply and cutting frequency | NM, TD, ME | 0·27 | −27·87 |
(B) With traits plasticity (Δtraits) | |||
N supply | ΔSL, ΔLDMC, ΔTD | 0·60 | −37·51 |
Cutting frequency | ΔNM, ΔLL, ΔLDMC, ΔEG | 0·44 | −37·72 |
N supply and cutting frequency | ΔNM, ΔSL, ΔTD, ΔLNCF | 0·55 | −43·17 |
(C) With all variables (traits values on average of C−N+ treatment and traits plasticity) | |||
N supply | SL, LL, SLA, CC, ΔNM, ΔSL, ΔCC, ΔTD | 0·89 | −64·85 |
Cutting frequency | NM, CC, ADF, ME, ΔADF | 0·66 | −53·63 |
N supply and cutting frequency | SL, SLA, CC, ME, ΔNM, ΔSL, ΔTD | 0·68 | −46·17 |
(D) With only the significant variables in the two previous simple regression analyses (see Table 3) | |||
N supply | ΔLDMC, ΔTD, BF | 0·58 | − 43·53 |
Cutting frequency | NM, CC, ADF, ME, ΔADF | 0·66 | − 53·63 |
N supply and cutting frequency | VE, ME, ΔNM, ΔSL, ΔTD | 0·60 | − 46·33 |
The models selected are shown in bold (with the lowest AIC value and with the lowest number of traits). See Materials and methods for calculation of variation in ANPP and trait plasticity.
For trait abbreviations, see Table 1.