Food web interactions of breeding Arctic shorebirds are shaped by their elevational distribution: dataset

We describe the spatial position of little stints and red knots in the tundra food web, from both a top-down and a bottom-up perspective, and suggest that these affect shorebird diet and survival. The availability of the key food items for chicks is related to their diet, and, although it is not possible to fully disentangle cause and effect, we find support that the diet differences are explained by elevation. Moreover, the difference in the elevational distribution of shorebird nests impacts their relationships with predators.