Coastal sandy ecosystems are increasingly being threatened by human pressure, causing loss of biodiversity, habitat degradation and landscape modifications. Source: aobblog.com
GR: Coastal development might have slowed during the 20-year period studied. All the best sites have been built out, and portions of the remnants are protected.
Studies such as this should not be so rare. More frequent monitoring is needed for these sites and for natural habitats of all kinds world wide.
Comparisons of repeated photographs show changes of interest for nature conservation. Photographs show changes in vegetation (Turner et al 2003), glaciers (Tarr and Martin 1914), sand dunes (Haynes 1980), details of 
GarryRogers Nature Conservation 