Sea otters returned to California estuary; eelgrass later expanded 600%

Sea otters returned to California’s Elkhorn Slough in 1984 when pollution had severely affected its ecosystem. Their recovery triggered changes across the food web, helping eelgrass beds expand by 600%. A later study found marsh-edge erosion slowed by an average of 69%, as otters reduced populations of root-eating crabs.

from Times of India https://ift.tt/Wlk2ow5