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Supplemental Information

Additional Information

Competing Interests

The authors declare they have no competing interests.

Author Contributions

Tiago G Santos conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, reviewed drafts of the paper.

Roberto Melo performed the experiments.

Dennis Costa e Silva performed the experiments.

Mauro Nunes performed the experiments.

Jeferson Franco, JL Franco conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Animal Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

CEUA Unipampa protocol 043/2013

Field Study Permissions

The following information was supplied relating to field study approvals (i.e., approving body and any reference numbers):

Field experiments are approved by the Research Council of the Universidade Federal do Pampa (project number: 9.004.13)

Data Deposition

The following information was supplied regarding data availability:

The raw data has been supplied as a supplementary file

Funding

CNPq, FAPERGS and Unipampa provided financial support. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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