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Additional Information

Competing Interests

There are no competing interests.

Author Contributions

Ignasi Bartomeus analyzed the data, wrote the paper.

Simon G Potts conceived and designed the experiments.

Ingolf Steffan-Dewenter conceived and designed the experiments.

Bernard E Vaissiere conceived and designed the experiments, wrote the paper.

Michal Woyciechowski conceived and designed the experiments.

Kristin M Krewenka performed the experiments.

Thomas Tscheulin performed the experiments.

Stuart PM Roberts performed the experiments.

Hajnalka Szentgyörgyi performed the experiments.

Catrin Westphal performed the experiments.

Riccardo Bommarco conceived and designed the experiments, performed the experiments.

Grant Disclosures

The following grant information was disclosed by the authors:

EU 6th Framework Programme: 2003-506675 (ALARM)

EU 7th Framework Programme: 244090 (STEP)

Data Deposition

The following information was supplied regarding the deposition of related data:

I plan to deposit the data in figshare (


This work was funded by the European Union to the projects “ALARM - Assessing large-scale environmental risks for biodiversity with tested methods” (2003-506675), and “STEP – Status and trends of European pollinators” (244090) in the 6th and 7th Framework Programme, respectively, and by the Swedish research council FORMAS. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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