Population control. Mostly hunting and demolishing dams. Beavers went extinct where I live in 1841. Reintroduction started in 1957. By now there is a very healt

Population control. Mostly hunting and demolishing dams. Beavers went extinct where I live in 1841. Reintroduction started in 1957. By now there is a very healthy population that stabilised around year 2000.