Danube-Auen National Park on both land and water, and other invertebrates, the total number of species in Donau-Auen National Park is estimated to be at least 5,000. Danube-Auen National Park Donau-Auen National Park () covers 93 square kilometres in Vienna and Lower Austria and is one of the largest remaining floodplains of the Danube in Middle Europe. The German word Aue (variant Au) means "river island, wetland, floodplain, riparian woodland", i.e. a cultivated landscape in a riparian zone. The words Aue and Au occur in a large number of German place names—including Donau, the German word for the Danube River—and refer to forests,
Danube Banovina within a federal Socialist Yugoslavia. Instead of the name Danube Banovina, the province officially gained its historical name of Vojvodina, with capital at Novi Sad. The new province consisted of Syrmia, Banat and Bačka regions. Baranja was included into the People's Republic of Croatia, while Šumadija and Braničevo were included into Serbia Proper. Some large cities of the Danube Banovina were: Danube Banovina The Danube Banovina or Danube Banate ( / Дунавска бановина), was a banovina of the Kingdom of Yugoslavia between 1929 and 1941. This province consisted of the geographical regions of Srem, Bačka, Banat, Baranja, Šumadija, and Braničevo.