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APPENDICES

APPENDIX A

Table A1. Aggregate percent biomass of food items in blue-winged teal collected at the Cache River study site in spring 2006 (n = 22) and 2007 (n = 27). If food items were <0.1% they were listed as trace (tr.).

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Total Vegetation 2.9 3.4
Total Animal Matter 31.8 38.7
Gastropoda 4.3 17.2
Physidae 4.0 2.2
Planorbidae 0.3 15.0
Bivalvia 0.0 2.7
Spaheriidae 0.0 2.7
Chironomidae 9.8 5.2
Non-Chironomidae Dipterans 0.2 3.3
Ceratopogonidae tr. 3.2
Macrocrustacea 6.9 1.1
Amphipoda 2.6 0.1
Isopoda 4.3 1.0
Microcrustacea 4.7 tr.
Cladocera 3.1 tr.
Copepoda 0.1 tr.
Ostracoda 1.5 0.0
Annelida 4.6 0.1

Non-Dipteran Insects 1.5 8.6
Baetidae 0.0 3.7
Caenidae 0.0 2.5
Total Seed 64.9 57.8
Alisma sp. 0.0 1.9
Table A1 continued.

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Amaranthus sp. 4.9 2.5
Asclepias sp. 0.0 1.2
Bidens sp. 5.2 0.0
Cyperus sp. 0.8 4.5
Digitaria sp. 4.9 tr.
Echinochloa sp. 5.1 2.6
Eleocharis sp. 0.7 3.1
Eragrostis sp. 1.2 0.1
Leersia sp. 3.5 2.7
Lonicera sp. 0.0 2.1
Ludwigia sp. 0.0 17.7
Panicum sp. 10.8 3.3
Polygonum sp. 11.1 6.7
Rhynchospora sp. 2.8 0.0
Scirpus sp. 7.4 4.2
Unknown Seeds 8.0 3.1

______________________________________________________________________________________

Table A2. Aggregate percent biomass of food items in blue-winged teal collected at the Illinois River study site in spring 2006 (n = 21) and 2007 (n = 28). If food items were <0.1% they were listed as trace (tr.).

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Total Vegetation 1.1 0.2
Total Animal Matter 28.3 48.5
Gastropoda 3.2 13.3
Lymnaeidae tr. 6.7
Physidae 3.2 6.2
Planorbidae 0.0 0.3
Chironomidae 9.7 4.8
Non-Chironomidae Dipterans 0.3 2.0
Culicidae 0.3 1.7
Macrocrustacea 4.7 3.9
Amphipoda 0.9 3.1
Isopoda 3.8 0.7
Microcrustacea 1.9 7.0
Cladocera 1.9 1.3
Copepoda tr. 4.7

Annelida 0.0 6.9
Non-Dipteran Insects 7.4 8.6

Collembola 4.5 tr.

Coenagrionidae 0.0 3.5
Dytiscidae 2.8 tr.
Elmidae 0.0 1.7
Miscellaneous / Unknown 1.0 1.7
Total Seed 70.6 51.2
Amaranthus sp. 2.8 1.7

Table A2 continued.

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Bidens sp. 2.7 1.5
Carex sp. 0.0 6.0
Cephalanthus sp. 0.3 4.1
Cyperaceae sp. 4.8 0.0
Cyperus sp. 22.9 1.7
Digitaria sp. 0.0 4.0
Echinochloa sp. 4.3 2.0
Eleocharis sp. tr. 1.7
Eragrostis sp. 5.1 1.0
Impatiens sp. 2.0 0.0
Leersia sp. 9.9 0.8
Ludwigia sp. 0.0 2.2
Panicum sp. 0.3 3.0
Polygonum sp. 5.7 15.4
Unknown Seeds 8.8 3.0

______________________________________________________________________________________

Table A3. Aggregate percent biomass of food items in blue-winged teal collected at the Wisconsin study site in spring 2006 (n = 15) and 2007 (n = 17). If food items were <0.1% they were listed as trace (tr.).

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Total Vegetation 0.0 0.1
Total Animal Matter 31.0 51.1
Gastropoda 11.9 38.0
Lymnaeidae 5.4 33.1
Physidae tr. 1.5
Planorbidae 6.3 3.2
Chironomidae 6.7 0.5
Non-Chironomidae Dipterans 0.1 8.6
Stratiomyidae 0.1 8.3
Tipulidae 0.0 0.2
Macrocrustacea 6.7 1.4
Amphipoda tr. 0.3
Isopoda 6.7 1.0
Microcrustacea tr. tr.
Non-Dipteran Insects 0.8 0.8
Miscellaneous / Unknown 4.7 tr.
Total Seed 69.0 48.7
Alisma sp. 0.3 4.2
Amaranthus sp. 9.4 0.5
Bidens sp. 8.9 9.6
Carex sp. 0.0 4.2
Cyperus sp. 14.8 6.2
Echinochloa sp. 0.0 5.8
Leersia sp. 12.7 1.6

Table A3 continued.

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Polygonum sp. 17.0 1.0
Potamogeton sp. 0.0 2.5
Scirpus sp. 0.0 7.2
Solanum sp. 0.0 4.6
Unknown Seeds 6.2 0.0

______________________________________________________________________________________

Table A4. Aggregate percent biomass of food items in blue-winged teal collected at the Scioto River study site in spring 2006 (n = 2) and 2007 (n = 10). If food items were <0.1% they were listed as trace (tr.).

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Total Vegetation 0.0 6.2
Total Animal Matter 52.1 26.2
Gastropoda 44.6 2.0
Lymnaeidae 38.8 0.6
Physidae 5.9 0.5
Planorbidae 0.0 0.9
Bivalvia 0.9 0.0
Spaheriidae 0.9 0.0
Chironomidae tr. 8.5
Non-Chironomidae Dipterans 0.0 0.2
Macrocrustacea 0.0 0.1
Isopoda 0.0 0.1
Microcrustacea 0.0 10.9
Cladocera 0.0 10.9
Annelida 2.7 4.0
Non-Dipteran Insects 3.9 0.1
Hydrophilidae 3.8 0.0
Total Seed 47.9 67.5
Amaranthus sp. 0.4 tr.
Bidens sp. 47.5 0.0
Carex sp. 0.0 1.6
Echinochloa sp. 0.0 4.1
Eleocharis sp. 0.0 9.5
Leersia sp. 0.0 9.8

Table A4 continued.

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Panicum sp. 0.0 3.6
Polygonum sp. 0.0 16.7
Potamogeton sp. 0.0 18.2
Unknown Seeds 0.0 2.5

______________________________________________________________________________________

Table A5. Aggregate percent biomass of food items in blue-winged teal collected at the Lake Erie study site in spring 2006 (n = 20) and 2007 (n = 6). If food items were <0.1% they were listed as trace (tr.).

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Total Vegetation 22.6 31.8
Total Animal Matter 41.1 14.2
Gastropoda 35.4 12.3
Lymnaeidae 5.4 tr.
Physidae 16.4 0.9
Planorbidae 13.6 11.3
Chironomidae 1.6 0.1

Non-Chironomidae Dipterans tr. 0.4
Macrocrustacea 0.9 1.0
Amphipoda 0.3 1.0
Isopoda 0.6 0.0
Microcrustacea tr. 0.2
Annelida 1.4 0.0
Non-Dipteran Insects 1.6 tr.
Aeshnidae 0.2 0.0
Coenagrionidae 0.6 tr.
Dytiscidae 0.4 0.0
Total Seed 36.3 53.9
Cyperus sp. 0.0 11.5
Eleocharis sp. 10.1 0.0
Leersia sp. 5.3 0.0
Polygonum sp. 10.6 30.1
Scirpus sp. 6.3 9.9

______________________________________________________________________________________

Table A6. Aggregate percent biomass of food items in blue-winged teal collected at the Saginaw Bay study site in spring 2006 (n = 11) and 2007 (n = 19). If food items were <0.1% they were listed as trace (tr.).

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Total Vegetation 1.3 5.5
Total Animal Matter 65.6 55.1
Gastropoda 37.8 33.6
Lymnaeidae 7.0 12.2
Physidae 3.0 5.7
Planorbidae 27.8 15.6
Bivalvia 3.6 2.8
Sphaeriidae 3.6 2.8
Chironomidae 13.8 6.9
Non-Chironomidae Dipterans tr. 0.0
Macrocrustacea 7.8 5.1
Amphipoda 5.0 2.1
Isopoda 2.8 2.9

Non-Dipteran Insects 2.6 6.5
Caenidae 0.4 tr.
Coenagrionidae 1.2 1.0
Dytiscidae 0.0 3.7
Hydrophilidae 0.0 1.2
Phyrganeidae 0.6 0.3
Total Seed 33.1 39.2
Amaranthus sp. 11.5 tr.
Carex sp. 0.0 3.3
Cladium sp. 0.0 3.8
Cyperus sp. 0.0 5.3

Table A6 continued.

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Eleocharis sp. tr. 4.6
Najas sp. 0.0 1.1
Polygonum sp. 3.0 8.4
Potamogeton sp. 0.0 4.4
Scirpus sp. 8.2 4.8
Unknown Seeds 9.0 0.7

______________________________________________________________________________________

Table A7. Aggregate percent biomass of food items in gadwall collected at the Cache River study site in spring 2006 (n = 8) and 2007 (n = 15). If food items were <0.1% they were listed as trace (tr.).

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Total Vegetation 73.4 46.8
Algae 49.5 28.7
Lemna 6.6 0.0
Wolffia 17.3 0.0
Other Vegetation tr. 18.1
Total Animal Matter 5.0 18.5
Chironomidae 0.7 11.5
Non-Chironomidae Dipterans 0.2 tr.
Microcrustacea tr. 0.1
Non-Dipteran Insects 3.9 tr.
Collembola 3.8 0.0
Miscellaneous / Unknown tr. 6.6
Terrestrial Invertebrates 0.0 6.6
Total Seed 21.6 34.5
Carex sp. 4.3 0.1
Cyperus sp. 2.7 3.6
Digitaria sp. 0.0 1.5
Echinochloa sp. tr. 6.6
Eragrostis sp. 2.2 6.6
Ludwigia sp. 0.0 7.2
Panicum sp. 0.0 3.3
Polygonum sp. 4.3 4.0
Trifolium sp. 6.8 0.0

______________________________________________________________________________________
Table A8. Aggregate percent biomass of food items in gadwall collected at the Illinois River study site in spring 2006 (n = 14) and 2007 (n = 8). If food items were <0.1% they were listed as trace (tr.).

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Total Vegetation 3.0 74.4
Algae 2.2 42.4
Lemna 0.0 9.0
Other Vegetation 0.7 22.9
Total Animal Matter 6.5 21.5
Chironomidae 6.1 10.6
Microcrustacea 0.3 tr.
Annelida tr. 8.6
Oligochaeta 0.0 8.6
Non-Dipteran Insects 0.0 2.1
Coenagrionidae 0.0 0.5
Libellulidae 0.0 0.7
Corixidae 0.0 0.4
Total Seed 90.6 4.0
Amaranthus sp. 2.1 tr.
Carex sp. 13.9 0.0
Cephalanthus sp. 1.8 0.0
Cyperus sp. 40.6 tr.
Echinochloa sp. 3.8 0.1
Leersia sp. 0.0 1.5
Najas sp. 3.6 0.2
Panicum sp. 1.0 0.0
Polygonum sp. 6.3 1.5
Potamogeton sp. 3.3 0.1

Table A8 continued.

______________________________________________________________________________________

2006 2007

Food Item Agg. % Agg. %

______________________________________________________________________________________

Unknown Seeds 13.7 0.0

______________________________________________________________________________________

Table A9. Aggregate percent biomass of food items in gadwall collected at the Wisconsin study site in spring 2007 (n = 16). If food items were <0.1% they were not listed.