1) Dune grasslands in the Netherlands support a high level of biodiversity and over 50% of Dutch species, but this biodiversity is threatened by issues like nitrogen deposition and habitat loss. 2) Conservation measures aim to restore natural dynamics through actions like creating small blowouts and large-scale dune rejuvenation, but there are questions about whether fauna populations can keep pace with the rate of change. 3) Research showed that small-scale blowouts led to faster recovery of insect populations compared to large-scale rejuvenation, and that heterogeneity of habitat types benefits different insects and their predators. Maintaining a gradient and mosaic of stable and dynamic habitat is important for fauna.