About the Authors

G. W. Weiger Wamelink

wieger.wamelink@wur.nl

Affiliation Alterra, Wageningen UR, Wageningen, the Netherlands

Paul W. Goedhart

Affiliation Biometris PRI, Wageningen UR, Wageningen, the Netherlands

Josep Y. Frissel

Affiliation Alterra, Wageningen UR, Wageningen, the Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GWWW PWG. Performed the experiments: GWWW JYF. Analyzed the data: GWWW PWG JYF. Wrote the paper: GWWW PWG.