South Sudan
Geography

South Sudan lies between latitudes 3° and 13°N, and longitudes 24° and 36°E. It is covered in tropical forest, swamps, and grassland. The White Nile passes through the country, passing by Juba. The Sudd is formed by the White Nile, known locally as the Bahr al Jabal, meaning "Mountain Sea".

South Sudan's protected area of Bandingilo National Park hosts the second-largest wildlife migration in the world. Surveys have revealed that Boma National Park, west of the Ethiopian border, as well as the Sudd wetland and Southern National Park near the border with Congo, provided habitat for large populations of hartebeest, kob, topi, buffalo, elephants, giraffes, and lions.

South Sudan's forest reserves also provided habitat for bongo, giant forest hogs, red river hogs, forest elephants, chimpanzees, and forest monkeys. Surveys begun in 2005 by WCS in partnership with the semi-autonomous government of Southern Sudan revealed that significant, though diminished wildlife populations still exist, and that, astonishingly, the huge migration of 1.3 million antelopes in the southeast is substantially intact.

Habitats in the country include grasslands, high-altitude plateaus and escarpments, wooded and grassy savannas, floodplains, and wetlands. Associated wildlife species include the endemic white-eared kob and Nile Lechwe, as well as elephants, giraffes, common eland, giant eland, oryx, lions, African wild dogs, cape buffalo, and topi (locally called tiang). Little is known about the white-eared kob and tiang, both types of antelope, whose magnificent migrations were legendary before the civil war. The Boma-Jonglei Landscape region encompasses Boma National Park, broad pasturelands and floodplains, Bandingilo National Park, and the Sudd, a vast area of swamp and seasonally flooded grasslands that includes the Zeraf Wildlife Reserve.

Little is known of the fungi of South Sudan. A list of fungi in Sudan was prepared by S. A. J. Tarr and published by the then Commonwealth Mycological Institute (Kew, Surrey, UK) in 1955. The list, of 383 species in 175 genera, included all fungi observed within the then boundaries of the country. Many of those records relate to what is now South Sudan. Most of the species recorded were associated with diseases of crops. The true number of species of fungi in South Sudan is probably much higher.

In 2006, President Kiir announced that his government would do everything possible to protect and propagate South Sudanese fauna and flora, and seek to reduce the effects of wildfires, waste dumping, and water pollution. The environment is threatened by the development of the economy and infrastructure. The country had a 2019 Forest Landscape Integrity Index mean score of 9.45/10, ranking it fourth globally out of 172 countries.

Several ecoregions extend across South Sudan: the East Sudanian savanna, Northern Congolian forest–savanna mosaic, Saharan flooded grasslands (Sudd), Sahelian Acacia savanna, East African montane forests, and the Northern Acacia–Commiphora bushlands and thickets.
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