Table 1.
Solar irradiance [photosynthetically active radiation (PAR) integrated over the day], minimum relative humidity and maximum vapour pressure deficit (VPD) of the air in sun and shade habitats for the 2004–2005 study period
| Solar irradiance (mol PAR m−2 d−1) |
Minimum relative humidity of air (%) |
Maximum VPD (hPa) |
|||||
|---|---|---|---|---|---|---|---|
| Mean | s.e. | Mean | s.e. | Mean | s.e. | ||
| Summer | Sun | 45·1 | 2·7 | 14·7 | 2·5 | 38·6 | 1·9 |
| Shade | 13·5 | 0·8 | 21·7 | 2·9 | 30·0 | 1·6 | |
| Autumn | Sun | 28·6 | 1·7 | 33·0 | 2·5 | 16·6 | 1·4 |
| Shade | 8·6 | 0·5 | 42·8 | 2·7 | 13·0 | 1·1 | |
| Winter | Sun | 12·5 | 0·8 | 48·0 | 3·0 | 7·2 | 0·5 |
| Shade | 3·8 | 0·2 | 57·1 | 3·0 | 5·7 | 0·5 | |
| Spring | Sun | 37·2 | 2·2 | 17·0 | 1·5 | 25·3 | 1·3 |
| Shade | 11·2 | 0·7 | 26·8 | 1·9 | 18·8 | 1·1 | |
Values are daily totals or daily minima or maxima, and the mean and standard error for each season are provided; values of summer represent the mean for 2004 and 2005 summers.