veterinary standard fences. These prevent the spread of cattle diseases, such as Foot-and-mouth disease. Biology and ecology Bwabwata is located in the Tree and Shrub Savanna biome. Vegetation types include North-eastern Kalahari Woodland, Caprivi Mopane Woodland, Riverine Woodlands and Islands, Okavango Valley, Caprivi Floodplains. The landscape consists of low vegetated sand dunes with old drainage lines (Omiramba) in between. Bwabwata forms a crucial trans-boundary link for wildlife movement between Angola, Botswana, Namibia and Zambia. Flora Typical trees include Zambezi teak (Baikiaea plurijuga), wild seringa (Burkea africana), African teak (Pterocarpus angolensis), manketti (Schinziophyton rautanenii), false mopane (Guibourtia coleosperma), camelthorn tree (Acacia erioloba), jackalberry (Diospyros mespiliformis) and makalani palm (Hyphaene petersiana). Fauna Several rare large mammal and bird species are found in Bwabwata. Elephants regularly move between Namibia, Angola, Botswana and Zambia. Other species found are Cape buffalo, hippopotamus, roan antelope, sable antelope, tsessebe, zebra, wildebeest, common reedbuck, red lechwe, sitatunga and crocodile. Main predators are lion, leopard, cheetah and spotted hyena. The Mahango Area and Kavango River in western Bwabwata are listed as an internationally Important Bird Area supporting globally threatened species and is an avian diversity hotspot. Species include black-winged pratincole, slaty egret, wattled crane, African skimmer, African pygmy-goose, coppery-tailed coucal, white-backed night heron, rufous-bellied heron, Allen's gallinule, Dickinson's kestrel, black-faced babbler, swamp boubou, collared palm thrush, Meves's starling, southern ground hornbill, barred owlet, Bennett's woodpecker, wood owl, various warblers and cisticolas. Fires Fires occur almost annually and are mainly caused by humans and lightning. Although fires are a natural phenomenon in these savannas, too frequent or infrequent fires may negatively affect vegetation and fauna. A managed burning programme aims to reduce the frequency and intensity of fires. Recreation Visitors travelling off the main road need a permit and must drive only on designated roads. Several sandy roads, suitable for all-wheel drive vehicles, are found near the Kwando and Okavango rivers. Bwabwata has three community-operated campsites within the park, namely Nǁgoabaca, Nambwa and Bum Hill. Local communities, organised into communal area conservancies, earn revenue from these campsites. Several lodges are situated outside Bwabwata on its borders. Tour operators offer game drives, boat trips and walks in the Park. Kavango–Zambezi Transfrontier Conservation Area Angola, Botswana, Namibia, Zambia and Zimbabwe have agreed to manage trans-boundary conservation through the Kavango–Zambezi Transfrontier Conservation Area (KaZa TFCA). Bwabwata is situated in the centre of the KaZa TFCA and forms a corridor for elephant movement from