Data from: Predator-mediated negative effects of overabundant snow geese on arctic-nesting shorebirds ...

• Main Authors: Lamarre, Jean-François, Legagneux, Pierre, Gauthier, Gilles, Reed, Eric T., Bêty, Joël
• Format: Dataset
• Language: English
• Published: Dryad 2018
• Subjects: Chen caerulescens; Vulpes lagopus; Pluvialis squatarola; Charadrius hiaticula; Larus hyperboreus; Phalaropus fulicarius; Calidris canutus; Stercorarius parasiticus; waders; Calidris fuscicollis; bird colony; Calidris melanotos; Pluvialis dominica; shared enemy; Calidris bairdii; shorebirds; Waterfowl; 2010-2015; Corvus corax; Tryngites subruficollis; Arenaria interpres; Arctic; Tundra
• Online Access: https://dx.doi.org/10.5061/dryad.796t8; https://datadryad.org/stash/dataset/doi:10.5061/dryad.796t8

Overabundant species can strongly impact ecosystem functioning through trophic cascades. The strong increase in several arctic geese populations, primarily due to changes in agricultural practices in temperate regions, can have severe direct impacts on tundra ecosystems through vegetation degradation. However, predator-mediated negative effects of goose overabundance on other tundra species can also be significant but are poorly understood. We tested the hypothesis that goose abundance negatively affects arctic-nesting shorebirds by increasing nest predation pressure. We used six years of data collected within and near a greater snow goose colony (Chen caerulescens atlantica) to evaluate the effect of geese on the spatial variation in (1) the occurrence of shorebird nest predators, (2) the nest predation risk (with artificial shorebird nests), and (3) the occurrence of nesting shorebirds. We found that the goose colony had a strong influence on the spatial distribution of nest predators and nesting ... : DATA_MS#ECS16-0660Database on the impacts of overabundant Greater Snow Geese on sympatric species, with a focus on shorebirds. ...