Relationships of
Vertebrate Animals
to this Plant:
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Ruppia maritima (Widgeon Grass) [Ruppiaceae]
(observations are from Martin et al., Bellrose, and Havera; Ruppia cirrhosa is a scientific synonym of this plant)
Birds
Anatidae: Anas acuta (Northern Pintail) [feeds on foliage] Blr1942, Anas americana (American Wigeon) [seeds & foliage comprise 10-25% of the diet in the Northeast during fall & winter] MZN1951, Anas clypeata (Northern Shoveler) [this plant comprises 2-5% of the diet in the Southeast during winter] MZN1951, Anas crecca carolinensis (Green-winged Teal) [this plant comprises 0.5-2% of the diet in the Northeast, feeds on foliage] MZN1951 Blr1942, Anas discors (Blue-winged Teal) [the foliage & seeds comprise 2-5% of the diet in the Northeast during fall & winter & spring, feeds on foliage] MZN1951 Blr1942, Anas platyrhynchos (Mallard) [this plant comprises 0.5-2% of the diet in the Northeast, feeds on foliage] MZN1951 Blr1942, Anas rubripes (Black Duck) [feeds on this plant] Blr1942, Anas strepera (Gadwall) [this plant comprises 10-25% of the diet in the Southeast during winter, feeds on this plant] MZN1951 Blr1942, Aythya affinis (Lesser Scaup) [this plant comprises 0.5-2% of the diet in the Northeast, feeds on foliage & seeds in Illinois & elsewhere] MZN1951 Blr1942 Hv1999, Aythya americana (Redhead) [this plant comprises 0.5-2% of the diet in the Northeast, feeds on this plant in Illinois & elsewhere] MZN1951 Blr1942 Hv1999, Aythya valisineria (Canvasback) [feeds on this plant] Blr1942, Bucephala albeola (Bufflehead) [this plant comprises 0.5-2% of the diet in the Northeast] MZN1951, Bucephala clangula (Common Goldeneye) [this plant comprises 0.5-2% of the diet in the Northeast] MZN1951, Cygnus columbianus (Tundra Swan) [feeds on this plant] Blr1942, Oxyura jamaicensis (Ruddy Duck) [foliage & seeds comprise 2-5% of the diet in the East during fall & winter & spring, feeds on this plant] MZN1951 Blr1942; Scolopacidae: Calidris canutus rufa (Red Knot) [seeds comprise 2-5% of the diet in the Northeast during fall] MZN1951, Calidris fuscicollis (White-rumped Sandpiper) [seeds comprise 2-5% of the diet in the East during summer & fall] MZN1951, Calidris himantopus (Stilt Sandpiper) [seeds comprise 0.5-2% of the diet in the East] MZN1951, Calidris melanotos (Pectoral Sandpiper) [seeds comprise 0.5-2% of the diet in the United States] MZN1951, Limnodromus griseus (Short-billed Dowitcher) [seeds comprise 0.5-2% of the diet in the East] MZN1951