Conservation flagships can be used at broader levels, for example as ecosystems like coral reefs, rainforests or protected areas like the Serengeti or Yellowstone. Some recent initiatives have developed flagships based on the conservation value of particular areas or species. Examples of these are the EDGE project run by the Zoological Society of London and the Hotspots run by Conservation International.[1] More recently, work in microbiology has started to use flagship species in a distinct way.