They collected long-term historical records from 12 coastal areas in Europe and North America, including information on the Roman elimination of the Dalmatian pelican from the Wadden Sea and the removal of the Atlantic sturgeon from the Chesapeake Bay and the Delaware Bay.

ECONOMIST: Marine biodiversity

Around 1, 400 Dalmatian pelicans, the world's largest variety of pelican, are thought to live in southern Russia.

BBC: Trapped Dalmatian pelicans hand-fed in frozen Caspian Sea