J. R. Foth

Invertebrate Biomass in Flooded Corn and Other Wetlands Managed for Wintering Waterfowl in the Mississippi Alluvial Valley

Aquatic invertebrates provide protein-rich foods for dabbling ducks (Anatini) and other waterfowl throughout their annual cycle. During winter, some species (e.g., mallard [Anas platyrhynchos]) undergo molt and acquire body reserves for migration and egg formation, which increase protein demands met primarily through consumption of invertebrates. Habitat managers often flood unharvested agricultural crops to increase energetic carrying capacity for waterfowl. However, few studies have estimated abundance of invertebrates in flooded croplands. In Mississippi in January 2009, we used a...