Beavers Return to Essex Estate, Boosting Water Quality and Wildlife in One Year

Beavers have been reintroduced to the Spains Hall Estate in Essex, England. Within a year of their return, studies recorded a rise in both the number and variety of land-dwelling invertebrates. Water quality also improved, with oxygen levels increasing and nitrate concentrations falling. The findings suggest that beaver reintroduction can benefit local ecosystems in a relatively short period.