Appendix 3 Reviewed articles including quantitative data on teal diet

The part of the digestive system investigated is oesophagus (Oeso), Proventriculus (Pro) and Gizzard. The quantitative measures are represented by frequency of birds with a certain food item (Freq), dry weight (d.w), volume by placing matter in a liquid container and measuring replaced liquid (Vol).

Country / Age / Season / Quantitative food measure / Sampled birds (N) / Type of sample / Reference
Denmark / Adult / All year / Freq, / 194 / Prov + Giz / Spärck, 1947
Egypt / Adult / Jan / Freq. / 25 / Oes + Giz / Veiga, 1991
Finland / Fledged / Aug / Vol. / 14 / Oes+Prov / Nummi, 1990
Fledged / Aug-Sept / Freq. / 36 / Oes / Nummi, 1993
Adult / Aug-Sept / Freq / 32 / Prov+Giz / Tiussa, 1972
Adult / Aug-Sept / Vol. / 16 / Oes / Väänänen and Nummi, 2003
France / Adult / Aug-March / Freq., d.w. / 9 / Giz / Brouwer, 1980
Adult / Aug-March / Freq., d.w. / 30 / Giz / Brouwer, 1980
Adult / Aug-March / Freq., d.w. / 84 / Giz / Brouwer, 1980
Adult / Sept-Jan / Freq.Nb. / 15 / Giz / Goyon Demonteil, 2004
Adult / Sept-Jan / Freq.Nb. / 114 / Giz / Guillemain et al. unpubl.
Adult / Sept-Jan / Freq.Nb. / 140 / Giz / Legagneux et al. unpubl.
Adult / Sept-Jan / Freq.Nb. / 88 / Oes+Prov / Legagneux et al.unpubl.
Adult / Sept-Jan / Freq.Nb. / 147 / Giz / Legagneux et al. unpubl.
Adult / Sept-Jan / Freq.Nb. / 138 / Oes+Prov / Legagneux et al. unpubl.
Adult / Aug-Feb / Freq. / 48 / Oes+Prov+Giz / Mouronval et al. 2007
Adult / Aug, Sept / Freq. / 45 / Oes / Pirot, 1981
Adult / Oct / Freq., d.w. / 5 / Oes / Pirot, 1981
Adult / Nov, Dec, Jan / Freq., d.w. / 66 / Oes / Pirot, 1981
Adult / Feb, March / Freq., d.w. / 64 / Oes / Pirot, 1981
Adult / Sept-Feb / d.w. / 117 / Oes+Prov+Giz / Schincke, 1983
Adult / Sept-Feb / Freq.,Nb / 113 / Oes+Prov+Giz / Schincke, 1983
Adult / Aug-March / d.w. / 313 / Oes+Prov+Giz / Tamisier, 1971
Hungary / Adult / All year / Freq. / 23 / Oes / Sterbertz, 1969-1970
Iceland / Duckling / July-Aug / Freq, Nb / 16 / Oes / Bengtson, 1975
The Netherlands / Adult / Dec, Feb / Freq., Nb / 7 / Giz / De Vries, 1939
Adult / Dec,Feb / Freq.,Nb / 2 / Oes / De Vries, 1939
Norway / Adult / Apr / Nb / 1 / Not specified / Holmboe, 1900
Russia / Adult / April-May / Freq. / 79 / Not specified / Molodovsky, 1971
Adult / June-July / Freq. / 79 / Not specified / Molodovsky, 1971
Adult / Aug / Freq. / 79 / Not specified / Molodovsky, 1971
Adult / Sept / Freq. / 79 / Not specified / Molodovsky, 1971
Spain / Adult / Oct / Freq. / 18 / Prov+Giz / Llorente et al 1987
Adult / Sept-Nov / Freq. / 35 / Giz / Sanchez et al. unpubl.
Adult / Winter / Freq. / 13 / Giz / Suarez-R and Urios, 1999
Sweden / Adult / Autumn / Freq. / 1 / Not specified / Birger, 1907
Duckling / June-July / Freq. / 5 / Oes / Danell and Sjöberg, 1980
Duckling / June-July / Freq. / 10 / Prov+Giz / Danell and Sjöberg, 1980
Adult / June-July / Freq. / 1 / Oes / Danell and Sjöberg, 1980
Adult+ fledged / Aug / Freq. / 7 / Oes / Danell and Sjöberg, 1980
Adult / June-July / Freq. / 3 / Prov+Giz / Danell and Sjöberg, 1980
Adult+ Fully fledged / Aug / Freq. / 21 / Prov+Giz / Danell and Sjöberg, 1980
Adult / Not specified / Freq.Nb / 2 / Not specified / Hesselman, 1897
Switzerland / Adult / Winter / Freq.Nb / 32 / Prov+Giz / Mazzuchi, 1971
The United Kingdom / Adult / Oct-Feb / Freq. / 23 / Prov+Giz / Campbell, 1947
Adult / Sept-Feb / Freq. / 369 / Oes+Prov+Giz / Olney, 1963
Adult / Sept – Jan / Freq. / 16 / Giz / Olney, 1967
Adult / Sept-Jan / Freq., d.w. / 279 / Oes+Prov+Giz / Thomas, 1982