Number of SCI Publications per Million Dollars

<p>This figure shows the number of SCI publications per million dollars that are invested in research and development in the Americas (<a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.0020001#pbio-0020001-RICYT1" target="_blank">RICYT 2002</a>).</p

Relative Increase in Scientific Publications in the Americas

<p>This figure shows the relative increase in publication in the Americas measured as the proportional change (%) in the number of SCI publications compared with the number of publications in 1990 (<a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.0020001#pbio-0020001-RICYT1" target="_blank">RICYT 2002</a>).</p

Nutrient concentrations in soil and leaves.

<p>Values are median and range (in parenthesis). Columns with same letters were not significantly different following post-hoc analysis (p>0.05).</p

Survival (% individuals alive, n = 25) of seedlings of <i>Prosopis pallida</i> and <i>Capparis scabrida</i> in protected and unprotected experimental plots.

<p>Plots were located at increasing distance from shore (10, 50, 100 and 200 m). Overall survival (instead of mean and S.E.) illustrated here to facilitate comparison among distance classes.</p

Nitrogen stable isotope ratios (δ¹⁵N; mean ± SE) for leaves of <i>Prosopis pallida</i> (circles), <i>Capparis scabrida</i> (squares), and soil samples (triangles) collected at 10, 50, 100 and 200 m from shore.

<p>Nitrogen stable isotope ratios (δ¹⁵N; mean ± SE) for leaves of <i>Prosopis pallida</i> (circles), <i>Capparis scabrida</i> (squares), and soil samples (triangles) collected at 10, 50, 100 and 200 m from shore.</p

germination

To assess germination, we introduced seeds to Experiment 1 in the third week, corresponding to the time when pot water contents had stabilized. Three seeds were placed around the seedling of the same species, on the capitulum of a moss individual, using 3 x 140 = 420 seeds in total. Germination was checked twice a week until harvest, 5 weeks later. We considered a seed germinated when the integument had broken and a ‘shoot’ of at least 1 mm had emerged from the seed

Traitsandsurvival

Traits assessed in Experiment 2 were used to relate to seedling survival in Experiment 1. This file contains trait data from experiment 2 and seedling survival of seven conifer species in experiment 1 kept under contrasting moisture conditions (Dry, Wet

Seedlingtraitdataexperiment2

Experiment 2 Morphological traits were assessed independently of Experiment 1. We grew tree seedlings under optimal conditions by planting pre-grown 4 weeks old tree seedlings ( see plant material) into the center of a (10 cm wide) pot, using a density of one seedling per pot. The pots were filled with sterilized organic soil, watered daily and kept under the same glasshouse light and humidity conditions as Experiment 1. Pots were arranged in five replicated blocks. Both the blocks and the pots within a block were randomly moved once a week. For more information on columnheadings see Table 1 in the associated M

Appendix E. A figure illustrating the interactive effect of caterpillar presence and nutrient availability on macrophyte biomass.

A figure illustrating the interactive effect of caterpillar presence and nutrient availability on macrophyte biomass

Appendix D. A table with the analysis of the effect of herbivore treatments and nutrient availability on biomass of macrophytes and filamentous algae and the C:N and C:P ratio of macrophytes.

A table with the analysis of the effect of herbivore treatments and nutrient availability on biomass of macrophytes and filamentous algae and the C:N and C:P ratio of macrophytes