generalized additive mixed models

Bell, J.R., Botham, M.S., Henrys, P.A., Leech, D.I., Pearce-Higgins, J.W., Shortall, C.R., Brereton, T.M., Pickup, J. & Thackeray, S.J. (2019) Spatial and habitat variation in aphid, butterfly, moth and bird phenologies over the last half century. Global Change Biology, 25, 1982-1994, .