Vlieland is one of four areas in NIOO-AnE's long-term monitoring research on great tits and other bird species that started in 1955. It consists of several smaller forest areas, which together cover about 250 ha of mainly conifers and oak on poor sandy soil. As Vlieland is an island in the Wadden Sea, the area stands completely on its own. Important population questions in NIOO's long term research are/were studied here.

The Long-Term Socio-Ecological research platform Dutch Wadden Sea area is a large coastal area bordering the north of the Netherlands.

The Marker Wadden is a newly constructed archipelago in lake Markermeer, which aims to improve the lake’s degrading food web by stimulating primary productivity. The archipelago consists of five islands that add a currently missing habitat type to the lake: shallow, sheltered waters with high nutrient availability and gradual land-water transitions.