The natural value of Dutch sandy beaches has been declining for decades. These relatively unstable, low nutritious, wave-washed environments lack the primary producers that represent the base of the food web. Thus, the sandy beach food web relies almost entirely on nutrient influx of other systems. Beside …

Rijkswaterstaat has an effort-obligation and result-obligation to take measures to achieve the goals of the Water Framework Directive (WFD) at the Eastern Scheldt and Lake Grevelingen. The WFD aims to achieve and protect a sufficient ecological and chemical status of inland surface waters, transitional …

Climate change has great ecological consequences for animals. Furthermore, these changes can differ among different geographical areas. In birds it has been found that they can cause mismatches with their food supply as they do not respond to climate change at the same pace. By understanding more about …

Due to their high adaptability and opportunistic predation behaviour feral cats have a great impact on worldwide bird biodiversity in particular on islands. However not much is known about their actual behaviour and time budget, as direct behavioural observations often are difficult regarding free-ranging …

Dodaars (Tachybaptus ruficollis) is een watervogel die broedt in vennen van natuurgebied Kampina. De aantallen zijn dusdanig afgenomen dat Dodaars mogelijk geheel verdwijnt als broedvogel van de Huisvennen. Natuurmonumenten wil inzicht verkrijgen over de oorzaak van deze afname. Op basis van veldmetingen, …