Data for: Ecological specialization and population trends in European breeding birds

Dataset with information about avian species population trends (calculated on data provided in Stephens et al. 2016) and level of specialization for each species in several axes of ecological specialization (calculated following the procedure indicated in Morelli et al. 2019). Fields: Species; Max.trend; Min.trend; Mean.trend; SD Trend; no.countries; Trend_categories; Diet.specialization; Foraging.behav.specialization; Foraging.subst.specialization; Habitat.specialization; Nesting.site.specialization; Mean.specialization. References: Morelli, F., Benedetti, Y., Møller, A.P., Fuller, R.A., 2019. Measuring avian specialization. Ecol. Evol. 9, 8378–8386. doi:10.1002/ece3.5419 Stephens, P.A., Mason, L.R., Green, R.E., Gregory, R.D., Sauer, J.R., Alison, J., Aunins, A., Brotons, L., Butchart, S.H.M., Campedelli, T., Chodkiewicz, T., Chylarecki, P., Crowe, O., Elts, J., Escandell, V., Foppen, R.P.B., Heldbjerg, H., Herrando, S., Husby, M., Jiguet, F., Lehikoinen, A., Lindström, Å., Noble, D.G., Paquet, J.-Y., Reif, J., Sattler, T., Szép, T., Teufelbauer, N., Trautmann, S., van Strien, A.J., van Turnhout, C.A.M., Vorisek, P., Willis, S.G., 2016. Consistent response of bird populations to climate change on two continents. Science 352, 84–87. doi:10.1126/science.aac4858