Franz Josef Land and snow bunting. Some ivory gulls, little auks and Brünnich's guillemots opt to spend the winter on the islands. The polar bear population of Franz Josef Land lies within the Barents Sea subpopulation, which also includes polar bears inhabiting Svalbard and the western coast of Novaya Zemlya. In 2004, the Barents Sea subpopulation was estimated at 2,650. There is also a population of Arctic fox, which typically have their territories near seabird habitats. Being declared as a marine mammal sanctuary, the island has rich biodiversity of rare marine mammals. Three species of seals habit the archipelago. Harp seal is the
Environmental inequality in Europe by the Russian Empire to prevent Norwegian expansion. The traditional Nenets name for the archipelago, which lies within European continental borders, is Edey Ya. According to the Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization, during the Cold War approximately 500 Indigenous persons were relocated from Novaya Zemlya to make way for nuclear testing. The reindeer living on the island either died or were relocated to the mainland. Between 1954 and 1990, 132 nuclear test explosions, ninety four percent of the aggregate yield of nuclear testing in the former Soviet Union, were conducted on the islands. On October 30, 1961,