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Additional Information

Competing Interests

The authors declare they have no competing interests.

Author Contributions

Johan Höjesjö conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

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

Ronja Dahy performed the experiments, analyzed the data, reviewed drafts of the paper.

Lena Gustavsson performed the experiments, analyzed the data, reviewed drafts of the paper.

Jörgen I Johnsson conceived and designed the experiments, 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):

The experiment was appoved by the Ethical Committee for Animal Research in Göteborg (license 199/2002), and comply with current laws in Sweden.

Funding

JH and JIJ were financed by the Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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