Developing European conservation and mitigation tools for pollination services: approaches of the STEP (Status and Trends of European Pollinators) project

by Potts, S.G., Biesmeijer, J.C., Bommarco, R., Felicioli, A., Fischer, M., Jokinen, P., Kleijn, D., Klein, A.M., Kunin, W.E., Neumann, P., Penev, L.D., Petanidou, T., Rasmont, P., Roberts, S.P.M., Smith, H.G., Sorensen, P.B., Steffan-Dewenter, I., Vaissiere, B.E., Vila, M., Vujic, A., Woyciechowski, M., Zobel, M., Settele, J., Schweiger, O.