3.1 Patterns of microclimate and microhabitat structure
We found high horizontal and vertical variation in microclimate (air temperature: R2 = 0.91,F 7, 78 = 106.90, P < 0.001; relative humidity: R2 = 0.89,F 7, 77 = 90.17, P < 0.001) and microhabitat structure in our study site (Fig. 3). For every 10 m moved away from the forest floor, temperature increased by 0.13˚C and relative humidity decreased by 1.4% (Fig. 3; Table S2). In addition, there was variation between horizontal locations in temperature (0.36 ˚C per 10 m) and humidity (1.4% per 10 m) (Table S2). Photosynthetic photon flux density (PPFD) increased with vertical height (as PPFD was normalized within each vertical transect, we could not compare this across transects, note that PPFD data was missing for Transect 7;R2 = 0.39, F 1, 68 = 43.34, P < 0.001; Table S2, Fig. 3). The total leaf area generally decreased towards the upper canopy but did not show significant horizontal variation (note that leaf area data was missing for Transect 7; R2 = 0.24,F 6, 67 = 3.53, P = 0.004; Table S2, Fig. 3).