Table 3.
Correlations (r) between putative defences and foliar nutrient concentrations across species in kwongan in southwestern Australia and vegetation on ultramafic soils in New Caledonia
| P | N | N:P | |
|---|---|---|---|
| Kwongan, Western Australia (n = 18, 14) | |||
| Total phenolics | 0·587 (0·010)* | 0·145 (0·566) | −0·216 (0·389)* |
| Tannin activity | 0·641 (0·004)* | 0·102 (0·688) | −0·272 (0·275)* |
| Work-to-shear | 0·014 (0·956) | −0·259 (0·299) | −0·230 (0·359) |
| Specific work-to-shear | 0·127 (0·615) | −0·161 (0·523) | −0·208 (0·407) |
| Maquis, New Caledonia (n = 21, 20) | |||
| Total phenolics | −0·205 (0·374) | −0·030 (0·897) | 0·296 (0·192)* |
| Tannin activity | −0·253 (0·264) | −0·003 (0·990) | 0·434 (0·049)* |
| Work-to-shear | −0·150 (0·517) | 0·002 (0·993) | 0·233 (0·309) |
| Specific work-to-shear | 0·031 (0·895) | 0·153 (0·508) | 0·170 (0·462) |
| Rainforest, New Caledonia (n = 27, 24) | |||
| Total phenolics | −0·364 (0·057) | −0·393 (0·039)* | 0·082 (0·677) |
| Tannin activity | −0·353 (0·065) | −0·402 (0·034)* | 0·046 (0·817) |
| Work-to-shear | −0·100 (0·614) | −0·415 (0·028) | 0·155 (0·431) |
| Specific work-to-shear | −0·292 (0·132) | −0·137 (0·488) | 0·269 (0·166) |
All data were log-transformed, except tannin activity (protein precipitation). The associated P-values are given in parentheses, with significant values indicated in bold. An asterisk indicates significant correlations using PICs. Nutrient concentrations are taken from Read et al. (2005, 2006a) and Chatain et al. (2009). For n, the first value is the number of species, followed by the number of contrasts using PICs.