2). On the whole,
outputs from the hybrid model resembled results from diffusive models, although a few significant differences could be noted (see Section Importance Estrogen antagonist of Climate Variability). Patch spatial structure Unlike diffusive models, the hybrid model produced irregular patches, the biomass density of which was decreasing with distance from the patch center but which was spatially distributed over several hotspots of high biomass density (Figure ?(Figure2B,2B, top). The average individual biomass was, however, increasing with distance from the center (Figure ?(Figure2B,2B, top-right, red line), with large plants on the periphery of the patch (Figure ?(Figure2B,2B, top-right) and of hotspots (Figure ?(Figure2B,2B, top-left). Spatially, older plants were present within the core of the patch, with generally one area of particularly high density of old plants in the center of the patch (Figure ?(Figure2B,2B, bottom-left). The average
age of plants proved to be decreasing with distance from patch center (Figure ?(Figure2B,2B, bottom-right, red line). Unlike the foregoing trends in biomass, which were lasting, these proved to be fading with time, with the average plant age curve becoming progressively flat with consecutive dispersal events. It is worth noting that individual biomass proved to be limited by the plant's age but also concurrently by proximity to the patch center (Figure ?(Figure2B,2B, bottom-right, see point size). Effect on population age and biomass distribution Higher water availability increased non-linearly Alizarin the biomass density supported
by SB203580 the plot (i.e., 0.4, 6.5, 10.3, and 13.8 g/m2 at 0.9, 1.3, 1.5, and 1.7 mm respectively). The effect of precipitation was also visible in the age and biomass structure of the population (Figure ?(Figure3).3). The drier the climate, the lower the mean age of the population (e.g., 200 vs. 228 g for 0.9 vs. 1.3 mm rainfall; mean confidence ��1.7 and ��0.6 g respectively) and the higher the prevalence of young plants (less than a month old), which ranged from 15% of the population at 1.7 mm to 48% at 0.9 mm. Figure 3 Relative frequency of age and biomass under different precipitation regimes (0.9, 1.3, 1.5, and 1.7 mm). At initialization, 250 plants were grouped in 25 patches on the 200 �� 200 m plot. The experiment was run over 5 years and replicated 300 times ... On the contrary, plants were on average significantly larger the drier the climate, with mean plant biomass increasing from 24.4 g at 1.7 mm to 26.3, 31.2, and 45.4 g (mean conf. < 0.3) at 1.5, 1.3, and 0.9 mm, respectively. The frequency distribution of plant biomass was bimodal. The first peak, representing seedlings, was fixed around 1 g and inversely proportional in height to precipitation (e.g., 0.42 at 0.9 mm vs. 0.08 at 1.7 mm).
outputs from the hybrid model resembled results from diffusive models, although a few significant differences could be noted (see Section Importance Estrogen antagonist of Climate Variability). Patch spatial structure Unlike diffusive models, the hybrid model produced irregular patches, the biomass density of which was decreasing with distance from the patch center but which was spatially distributed over several hotspots of high biomass density (Figure ?(Figure2B,2B, top). The average individual biomass was, however, increasing with distance from the center (Figure ?(Figure2B,2B, top-right, red line), with large plants on the periphery of the patch (Figure ?(Figure2B,2B, top-right) and of hotspots (Figure ?(Figure2B,2B, top-left). Spatially, older plants were present within the core of the patch, with generally one area of particularly high density of old plants in the center of the patch (Figure ?(Figure2B,2B, bottom-left). The average
age of plants proved to be decreasing with distance from patch center (Figure ?(Figure2B,2B, bottom-right, red line). Unlike the foregoing trends in biomass, which were lasting, these proved to be fading with time, with the average plant age curve becoming progressively flat with consecutive dispersal events. It is worth noting that individual biomass proved to be limited by the plant's age but also concurrently by proximity to the patch center (Figure ?(Figure2B,2B, bottom-right, see point size). Effect on population age and biomass distribution Higher water availability increased non-linearly Alizarin the biomass density supported
by SB203580 the plot (i.e., 0.4, 6.5, 10.3, and 13.8 g/m2 at 0.9, 1.3, 1.5, and 1.7 mm respectively). The effect of precipitation was also visible in the age and biomass structure of the population (Figure ?(Figure3).3). The drier the climate, the lower the mean age of the population (e.g., 200 vs. 228 g for 0.9 vs. 1.3 mm rainfall; mean confidence ��1.7 and ��0.6 g respectively) and the higher the prevalence of young plants (less than a month old), which ranged from 15% of the population at 1.7 mm to 48% at 0.9 mm. Figure 3 Relative frequency of age and biomass under different precipitation regimes (0.9, 1.3, 1.5, and 1.7 mm). At initialization, 250 plants were grouped in 25 patches on the 200 �� 200 m plot. The experiment was run over 5 years and replicated 300 times ... On the contrary, plants were on average significantly larger the drier the climate, with mean plant biomass increasing from 24.4 g at 1.7 mm to 26.3, 31.2, and 45.4 g (mean conf. < 0.3) at 1.5, 1.3, and 0.9 mm, respectively. The frequency distribution of plant biomass was bimodal. The first peak, representing seedlings, was fixed around 1 g and inversely proportional in height to precipitation (e.g., 0.42 at 0.9 mm vs. 0.08 at 1.7 mm).