Humans aren’t only source of nutrients for Florida’s wetlands
NOAA Visualization Laboratory
Numerous water lilies and other aquatic flowers once dotted the grass carpets of Florida’s Everglades thanks to nutrient-bearing dust from Africa.
Windblown sediment from the Sahara Desert landed in Florida around 4,600 years ago and enriched its nutrient-poor wetlands, scientists report October 7 in the Proceedings of the National Academy of Sciences. But an abrupt shift in winds around 2,800 years ago downsized the dust dump and stifled the nutrient flow, the authors suggest.