Both from a theoretical (foraging theory) and a practical (wetland development and management) point of view, insight is required how animal populations depend on their habitat. Wetlands are considered to be threatened habitats all over the world . Water birds such as ducks, geese and swans ...
auteur(s): door Mennobart R. van Eerden; Ministerie van Verkeer en Waterstaat, Rijkswaterstaat, Directie IJsselmeergebied