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Supplemental Information

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Germán Baldi conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables.

Marcos Texeira performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Osvaldo A Martin performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

H. Ricardo Grau reviewed drafts of the paper.

Esteban G Jobbágy reviewed drafts of the paper.

Data Deposition

The following information was supplied regarding data availability:

http://gea.unsl.edu.ar/publicaciones.php#7a

Funding

This work was funded by grants from the International Research Development Center (IDRC-Canada, Project 106601-001), the Inter-American Institute for Global Change Research (IAI, CRN3 095), which is supported by the US National Science Foundation (Grant GEO-1128040), and the Agencia Nacional de Promoción Científica y Tecnológica (PICT-2013-2973). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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