Table 2.
(a) | |||||||||
Mass (mg) | LA (cm2) | Leaf mass (mg) | Leaf number (n) | Total N amount (μg N per plant2) | Tissue N concentration (μg N mg−1 dry mass) | Ndfp (μg per plant) | Ndfr (μg per plant) | ||
Cors Fochno | Mean | 11.89 | 0.46 | 5.24 | 3.87 | 123.0 | 10.31 | 65.7 | 57.3 |
SE | 0.78 | 0.02 | 0.40 | 0.12 | 9.0 | 0.15 | 13.6 | 7.2 | |
Whixall Moss | Mean | 17.26 | 0.68 | 5.76 | 4.55 | 249.8 | 14.41 | 69.3 | 180.5 |
SE | 1.33 | 0.04 | 0.46 | 0.17 | 21.7 | 0.33 | 15.2 | 13.2 | |
t-test results1 | t | 3.477 | 4.653 | 0.851 | 3.354 | 5.401 | 11.258 | 0.176 | 8.196 |
df | 18 | 18 | 18 | 18 | 12 | 18 | 18 | 18 | |
P | 0.003 | <0.001 | 0.406 | 0.004 | <0.001 | <0.001 | 0.863 | <0.001 | |
(b) | |||||||||
LA (cm2) | Leaf mass (mg) | LMA (mg cm−2) | SLA (cm2 mg−1) | Prey capture (n) | |||||
Cors Fochno | Mean | 0.11 | 3.13 | 28.70 | 0.04 | 1.2 | |||
SE | 0.00 | 0.17 | 2.01 | 0.00 | 0.1 | ||||
Whixall Moss | Mean | 0.13 | 3.96 | 31.39 | 0.03 | 1.1 | |||
SE | 0.00 | 0.25 | 1.88 | 0.00 | 0.0 | ||||
t-test resultsa | t | 2.734 | 2.733 | 0.979 | −1.192 | −1.279 | |||
df | 18 | 18 | 18 | 18 | 10 | ||||
P | 0.014 | 0.014 | 0.341 | 0.249 | 0.229 |
Mass, total dry mass per plant; LA, leaf area per plant; leaf mass, total leaf dry mass per plant; leaf number, number of live leaves per plant across the 2011 growth season; total N amount per plant (unadjusted for size); tissue N concentration, amount of N per unit plant dry mass; Ndfp, amount of prey-derived N per plant; Ndfr, amount of root-derived N per plant
LA, mean area per leaf; leaf mass, mean dry mass per leaf; LMA, leaf mass per area; SLA, specific leaf area; prey capture, number of captured invertebrates per leaf
aComparing differences between sites