Figure 6

Grass biomass sampled in transects on Eucalyptus sand sheet savannas in Kakadu National Park and the Dukaladjarranj Aboriginal estate in central Arnhem Land. (a) Grass biomass was sampled in eight 0.25Â m2 quadrats per 100Â m segment of transect. Total transect length was 2.0Â km at Dukaladjarranj and 3.2Â km in Kakadu (see "Materials and Methods" Section). (b) Box plots showing loads of grass and litter fuels sampled in four 0.25 m2 quadrats in circular plots (10Â m radius) surrounding living C. intratropica trees at Round Jungle (RJ) in Kakadu National Park and Dukaladjarranj (Fig. S1). Boxes span the interquartile range, the solid line indicates the median, the whiskers the 10th and 90th percentiles and solid circles, 5% and 95% outliers.