At the London Convention of 1933 the Union of South Africa (since 1961 the Republic of South Africa) pledged an behalf of the Administration of South West Africa, to ensure the conservation of all indigenous animals and plants in South West Africa. Although the treaty has become obsolete in the meantime, conservation initiated at the time is still being carried out by the Department of Nature Conservation and Tourism in South West Africa.
In South West Africa the black-faced impala occurs onIy in the zoogeographic entity known as the Kaokoveld which is bounded by the Namib desert to the west and by the inland plateau to the east. Information on black-faced irnpala was gathered during the catching operations in 1968, 1969 and also during infrequent encounters over a period of four years.
The plains zebra Equus burchelli antiquorum H. Smith, 1841 is one of the most numerous ungulate species in the Etosha National Park and it's migratory patterns and seasonal movements have never been fully understood. In order to clarify the sometimes confusing migrations a number of zebra were captured with drugs and marked with neckbands so that more definite information couId be obtained
The soft-shelled turtles of the genus Trionyx are found in North America, Asia and Africa. In Africa the genus is represented by a single species, Trionyx triunguis (Forskal). This species has a wide range of distribution in tropical and northern Africa.