Habitat selection of brood-rearing Northern Wheatears Oenanthe oenanthe and their invertebrate prey (2014)

van Oosten, H., van den Burg, A, Versluijs, R. & Siepel, H.

Birds consider both variation in prey abundance and accessibility in their decision of where to forage. Acidification and nitrogen deposition affect both prey abundance and accessibility by stimulating growth of nitrophilic grasses at the expense of forbs. Management practises such as mowing or grazing primarily
affect vegetation structure which also influences the abundance and accessibility of invertebrates. Hence, for effective management and conservation purposes it is paramount to understand the relationships between vegetation structure, densities of preferred prey and habitat-use of birds. In this study we explore such relationships for the nationally endangered Northern Wheatear
Oenanthe oenanthe in dune grasslands along the Dutch coast.