Eleusine jaegeri, a large tussock grass, dominates the highland grasslands of the Ngorongoro Conservation Area. It is unpalatable except when young. Consequently, grazing pressure is confined to an underlying mat of palatable grasses (Andropogon, Cynodon, Digitaria, Sporobolus) which is kept low by constant usage.
Vegetation survey / study areas: (1) Serengeti National Park, (2) Ngorongoro Conservation Area, (3) Mbulu District, (4) Maasailand, (5) Mkomazi Game Reserve, (6) Selous Game Reserve (only the eastern half is mapped). DSM – Dar es Salaam.
Please note: (a) Mkomazi Game Reserve is now Mkomazi National Park; (b) Pages 226-230 provide an English language summary of the German language Mbulu District text report; (c) what was once the eastern part of the Selous Game Reserve is the same area as the present Selous Game Reserve. The remainder of the former reserve is now Nyerere National Park.
Acacia hockii (since recategorized as Vallechia hockii). Woody vegetation covers 64% of the Serengeti National Park.


This part of Mbulu District, mapped as Combretum-Hyparrhenia savanna in 1967, is now farmland. The forest at top of picture lies within the Ngorongoro Conservation Area..
Tsetse fly infestations kept livestock from large areas of Maasailand’s rangelands during the 1975 – 76 wet season. I wonder if that’s still the situation today.

I want to thank Jon Herlocker for his financial and technical support.
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- An Ecological Description of a Semi-Arid East African Ecosystem
- Mbulu Distrikt (vegetation – map)
- Mbulu Distrikt (vegetation – text)
- Seasonal Distribution and Interactions of Cattle and Wild Ungulates in Maasailand Tanzania
- The Vegetation of the Eastern Selous Game Reserve MAP
- The Vegetation of the Eastern Selous Game Reserve
- Vegetation of the Ngorongoro Conservation Area, Tanzania – Map
- Vegetation of the Ngorongoro Conservation Area, Tanzania
- Woody Vegetation of the Serengeti National Park – Map
- Woody Vegetation of the Serengeti National Park–Text Report