Black wildebeest
Black wildebeest act as hosts to a number of external and internal parasites. A study of the animal in Karroid Mountainveld (Eastern Cape Province, South Africa) revealed the presence of all the larval stages of the nasal bot flies "Oestrus variolosus" and "Gedoelstia hässleri". The first instar larvae of "G. hässleri" were found in large numbers on the dura mater of wildebeest calves, specially between June and August, and these later migrated to the nasal passages. Repeated outbreaks of mange (scab) have led to large-scale extinctions. The first study of the protozoa in blue and black wildebeest showed the presence of 23 protozoan species in the rumen, with "Diplodinium bubalidis" and "Ostracodinium damaliscus" common in all the animals.
Black wildebeest
Though they are not present in their natural habitat in such large numbers today, black wildebeest were at one time the main herbivores in the ecosystem and a main prey item for large predators such as the lion. Now, they are economically important for human beings, as they are a major tourist attraction, as well as providing animal products such as leather and meat. The hide makes good quality leather and the flesh is coarse, dry and rather hard. Wildebeest meat is dried to make biltong, an important part of South African cuisine. The meat of females is more tender than that of males, and is at its best during the autumn season. The wildebeest can provide 10 times as much meat as Thomson's gazelle. The silky, flowing tail is used to make fly-whisks or "chowries".