Population growth in upland-nesting ducks is highly influenced by spatial and temporal variation in nest survival, and mammalian predators are the major cause of nest failure. Beginning in spring 2018, a graduate student from South Dakota State University and co-advised by a NPWRC scientist will study predator communities and their movements in landscapes with varying grassland patch composition, while concurrently investigating nest site selection and survival of upland duck nests. We anticipate that findings from this study will increase understanding of how grassland patches and vegetation composition, diversity, and structural heterogeneity influence predator habitat use, movements, and survival of upland duck nests. We will use results to evaluate comprehensive management strategies for remnant grasslands, restoration efforts, and active management programs that wish to modify grassland regimes to improve nesting habitat.
