This dataset presents four tabular data files that evaluate the effect of predator exclosures around piping plover (Charadrius melodus) nests on plover nest, chick, within-season, and annual adult survival. During 2014-2016, we designed an experiment to examine nest (n = 418), chick (n = 453), and adult (n = 367) survival at alkaline wetlands of the Northern Great Plains. Alkaline wetlands were divided between treatment wetlands and control wetlands (no exclosures placed anywhere on wetland). Field crews aimed to place predator exclosures around half of all plover nests found resulting in three treatment types: uncaged nest on control wetland, uncaged nest on treatment wetland, and caged nest on treatment wetland. The nest survival dataset includes values used with the Shaffer logistic exposure model as well as the treatment of nest and wetland separately. The chick survival dataset includes a censored Cormack-Jolly-Seber encounter history based on when chicks were searched for in addition to the experimental treatment, the region of the study area, and the density of chicks at each wetland basin. Adult survival was examined over two time periods, during incubation (within season) and annually, resulting in two separate datasets, and took advantage of resightings of individuals outside the focal study area. The within season survival dataset includes a Barker model encounter history, region, experimental treatment, and a measure of habitat availability based on a climate index (standard precipitation-evapotranspiration index). The annual adult survival dataset includes a Barker model encounter history and the time-varying experimental treatment.

We present two tabular digital data files representing values related how the presence of hetero- and conspecifics influence nest and chick survival for two listed migratory species breeding on the Missouri River; piping plover (Charadrius melodus) and least tern (Sternula antillarum). We followed 2,507 piping plover nests, 3,251 uniquely banded piping plover chicks, 1,060 least tern nests, and 1,377 uniquely banded least tern chicks from 2007 - 2009, 2012- 2016 in the Northern Great Plains of the US. This included river and reservoir habitats present on the Missouri River in North and South Dakota. Not all study areas were studied in all years. The nest survival dataset includes values for use with the Shaffer logistic exposure model, presence of piping plovers and least terns along with total number of nests of each species within in a variety of distances from a focal nest. It also contains habitat variables specific to certain study areas. The chick survival dataset includes capture histories along with presence of piping plovers and least terns.