Global environmental impacts require global-scale research efforts. The Nutrient Network is a globally-distributed, massively collaborative, experiment replicated at more than 70 sites in 12 countries on 5 continents to investigate the impacts of some of the most globally-pervasive impacts of humans on biological systems: eutrophication of earth’s ecosystems, biological invasions, and species extinctions. Specifically, the Nutrient Network has been using an unprecedented replicated experiment to understand the role of anthropogenic nutrient addition (nitrogen, phosphorus, potassium, and other micronutrients) and loss of large herbivores on important issues including invasive species, global biodiversity, ecosystem functioning, and disease (Firn et al. 2010; Adler et al. 2011; Stokstad 2011). While the current investigations are globally critical, perhaps the most important contribution of the network is experimental infrastructure that is allowing us to generate informed predictions about the responses of ecological systems to these current human impacts.
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