A biome is a broad ecological unit, defined by its geography, climate and soils. Although the plant and animal species differ from one part of the world to another, biomes share similar ecological processes, no matter where they are.
Africa has 13 biomes, of which 5 are represented in Namibia. The larger biomes in Namibia are divided into 28 vegetation types, each with its characteristic biota.
Narrow, hyper-arid coastal strip from Lüderitz northwards
Characterised by very low and erratic rainfall, fog, wind, extreme temperatures, poor soils.
Large areas covered by dunes with little vegetation, the rest consists of gravel plains with scattered inselbergs (island hills).
Divided into three vegetation zones
Many Namib endemics, some of which are iconic
Succulent Karoo
Northern tip of the biome that extends along the west coast of South Africa
Better known as Sperrgebiet, now protected within the Tsau ǁKhaeb National Park
Characterised by winter rainfall, fog, very strong winds, blowing sands, gravel plains and inselbergs
High diversity of succulents and geophytes
Known globally as a botanical “hotspot” due to its high species diversity and number of endemic plants
Home to about 25% of all Namibia’s plants (ca 1,000 species), covering more than fifty families
Produces stunning floral displays after good rains.
Nama Karoo
Covering most of southern Namibia and extending northwards along the escarpment
Southern part, which is divided into four vegetation zones, is characterised by the most extreme temperatures, highest evaporation and totally unpredictable, low rainfall, with poor, stony soils
Vegetation consists mainly of low (dwarf) shrubs, many of which may be found in South Africa
Although regarded as part of this biome, the northern and central escarpment and inselbergs are very different from the south both topographically and botanically, with larger trees and shrubs and many endemics
Tree-and-Shrub Savanna
Makes up the rest of Namibia and shares floral elements with Botswana and further east
By no means uniform, it is divided into 17 vegetation zones
Noteworthy among these are the Karstveld and Cuvelai
Rainfall increases from the west to north-east
The 400 mm rainfall isohyet divides this biome into the south-western Acacia Tree-and-Shrub Savanna and the Broad-leaved Tree-and-Shrub Savanna
Low endemism, but high diversity in the north-east
Large, deciduous trees that are extremely important for timber, construction material, food and medicines, as well as habitats for wildlife
Lakes and Saltpans
The well-known Etosha pan and its associated pans are the only example of this biome in Namibia
Due to the high salinity, it is devoid of plant life, apart from a few small, salt tolerant species around the edges
Peripheral springs form an important water source for animals
Language codes for species common names
Where common names in different languages are given, the following language codes have been used: