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Global analysis of nitrogen and phosphorus limitation of primary producers in freshwater, marine and terrestrial ecosystems.
The cycles of the key nutrient elements nitrogen (N) and phosphorus (P) have been massively altered by anthropogenic activities. Thus, it is essential to understand how photosynthetic productionExpand
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The invasion paradox: reconciling pattern and process in species invasions.
The invasion paradox describes the co-occurrence of independent lines of support for both a negative and a positive relationship between native biodiversity and the invasions of exotic species. TheExpand
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Invasion, competitive dominance, and resource use by exotic and native California grassland species
The dynamics of invasive species may depend on their abilities to compete for resources and exploit disturbances relative to the abilities of native species. We test this hypothesis and explore itsExpand
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A cross-ecosystem comparison of the strength of trophic cascades
Although trophic cascades (indirect effects of predators on plants via herbivores) occur in a wide variety of food webs, the magnitudes of their effects are often quite variable. We compared theExpand
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Nutrient co-limitation of primary producer communities.
Synergistic interactions between multiple limiting resources are common, highlighting the importance of co-limitation as a constraint on primary production. Our concept of resource limitation hasExpand
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Biotic interactions and plant invasions.
Introduced plant populations lose interactions with enemies, mutualists and competitors from their native ranges, and gain interactions with new species, under new abiotic conditions. From aExpand
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Consistent responses of soil microbial communities to elevated nutrient inputs in grasslands across the globe
Significance Human activities have resulted in large increases in the availability of nutrients in terrestrial ecosystems worldwide. Although plant community responses to elevated nutrients have beenExpand
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WHAT DETERMINES THE STRENGTH OF A TROPHIC CASCADE
Trophic cascades have been documented in a diversity of ecological systems and can be important in determining biomass distribution within a community. To date, the literature on trophic cascades hasExpand
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A cross-system synthesis of consumer and nutrient resource control on producer biomass.
Nutrient availability and herbivory control the biomass of primary producer communities to varying degrees across ecosystems. Ecological theory, individual experiments in many different systems, andExpand
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Productivity Is a Poor Predictor of Plant Species Richness
Standardized sampling from many sites worldwide was used to address an important ecological problem. For more than 30 years, the relationship between net primary productivity and species richness hasExpand
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