1 This is the final accepted version of the article (DOI: 10.1080/00063657.2015.1042357). 1 The publication is available at 2 http://www.tandfonline.com/doi/full/10.1080/00063657.2015.1042357 3 4 5 Latitudinal, longitudinal and weather-related variation in breeding parameters of Great Reed 6 Warblers in Europe: A meta-analysis 7 8 Thomas Oliver Mérő 1 , Antun Žuljević 1 and Szabolcs Lengyel 2 9 10 1 Nature Protection and Study Society - NATURA, Milana Rakića 20, SRB-25000 Sombor, 11 Serbia, e-mail: thomas.oliver.mero@gmail.com 12 13 2 Department of Tisza River Research, Danube Research Institute, Centre for Ecological 14 Research, Hungarian Academy of Sciences, Bem tér 18/c, H-4026 Debrecen, Hungary, e- 15 mail: lengyel.szabolcs@okologia.mta.hu 16 17 Short title Clutch variation in Great Reed Warbler 18 19 Corresponding authors e-mail: thomas.oliver.mero@gmail.com 20 21 This work was supported by the National Scientific Research Fund of Hungary under grant 22 number OTKA K 106133. 23 24