Habitat destruction has been linked to the loss of many species. Which of the biomes or ecosystems do you feel is most fragile and endanger? Why?

One of the most endangered ecosystems on the planet continues to vanish at record rates due to lack of protection. Native prairie losses continue to mount as grain prices and demands for biofuels make the expensive conversion to cropland profitable, despite the costs to waterfowl, wildlife, and the American taxpayer.