Sample sizes, mean ages (years) and trust levels of participants in four conditions.

<p>Sample sizes, mean ages (years) and trust levels of participants in four conditions.</p

Participants’ trust level in the survey of trust in others and investment game.

<p>Participants’ trust level in the survey of trust in others and investment game.</p

Homo Economicus Belief Inhibits Trust

<div><p>As a foundational concept in economics, the homo economicus assumption regards humans as rational and self-interested actors. In contrast, trust requires individuals to believe partners’ benevolence and unselfishness. Thus, the homo economicus belief may inhibit trust. The present three experiments demonstrated that the direct exposure to homo economicus belief can weaken trust. And economic situations like profit calculation can also activate individuals’ homo economicus belief and inhibit their trust. It seems that people’s increasing homo economicus belief may serve as one cause of the worldwide decline of trust.</p></div

Leaf litter decomposition in dryland under different three litter postions

There are three excel sheets. 1. Initial traits and k values in litter decomposition model across 17 desert species 2. The fraction of mass loss during three incubation times for each of three treatments 3. Litter concentration during different incubation times for each of threee treatmen

Correlated Biogeographic Variation of Magnesium across Trophic Levels in a Terrestrial Food Chain

<div><p>Using samples from eastern China (c. 25 – 41° N and 99 – 123° E) and from a common garden experiment, we investigate how Mg concentration varies with climate across multiple trophic levels. In soils, plant tissue (Oriental oak leaves and acorns), and a specialist acorn predator (the weevil <i>Curculio davidi</i>), Mg concentration increased significantly with different slopes from south to north, and generally decreased with both mean annual temperature (MAT) and precipitation (MAP). In addition, soil, leaf, acorn and weevil Mg showed different strengths of association and sensitivity with climatic factors, suggesting that distinct mechanisms may drive patterns of Mg variation at different trophic levels. Our findings provide a first step toward determining whether anticipated changes in temperature and precipitation due to climate change will have important consequences for the bioavailability and distribution of Mg in food chain.</p></div

Relationships between Mg concentration in soil, Oriental oak leaves and acorns, or larvae of the weevil <i>Curculio davidi</i> and latitude.

<p>Sampling was carried out across eastern China. Reduced Major Axis (RMA) regression slopes are 5.74 for soil, 1.63 for leaf, 0.91 for acorn and 1.11 for weevil larvae. Solid triangles, open circles, and solid circles are for data from 2007, 2008, and 2009, respectively. Different letters in the panel “All” indicate significant differences between slopes in a post-hoc comparison. The data of weevil Mg concentration (2.52 mg g^-1) from Anning and Lijiang (2.10 mg g^-1), Kunming, were not included in the statistics.</p

Associations between soil, Oriental oak leaf and acorn, and weevil larva Mg concentrations and mean annual temperature (MAT) and mean annual precipitation (MAP) across temperate-subtropical biomes in eastern China.

<p>Reduced Major Axis (RMA) regression slopes are −2.74 for soil, −0.82 for leaf, −0.54 for acorn and −0.57 for weevil larva against MAT, and for MAP, slopes are −2.44 for soil, −0.65 for leaf, −0.34 for acorn and −0.36 for weevil larva. Solid triangles, open circles, and solid circles are for data from 2007, 2008, and 2009, respectively. Broken line indicates no significance. Different letters in the panel “All” indicate significant differences between slopes in a post-hoc comparison.</p

Spearmańs rank correlations (ρ) between leaf and soil Mg, acorn and soil Mg, and weevil and acorn Mg. Mg (mg g^-1) is log₁₀-transformed before analysis.

<p>Spearmańs rank correlations (ρ) between leaf and soil Mg, acorn and soil Mg, and weevil and acorn Mg. Mg (mg g^-1) is log₁₀-transformed before analysis.</p

Results of hierarchical partitioning for the effects of climatic factors on soil Mg, and the effects of climatic factors and Mg available on leaf, acorn and weevil larva Mg.

<p>Note: see Full Methods for the abbreviations.</p

Relationships between proportion of clonal species and latitude.

<p>a: all species; b: within woody species; c: within herbaceous species.</p