The flora of the central Sahara Desert is very poor and estimated to include only 500 species (Le Houérou 1990). This is extremely low considering the huge extent of the area. It mainly consists of xerophytes and ephemeral plants (called also locally Acheb), with halophytes in moister areas.
Does the Sahara desert have high biodiversity?
The biodiversity, or variety of life in the desert, is based upon organisms that are specially adapted to survive without a ready supply of water. Whether hot or cold, the biodiversity of the desert is very low.
What is the biodiversity like in the desert?
Biodiversity is low in hot desert ecosystems. There are far fewer species supported by the extreme climate compared to other biomes. This is due to the high temperatures, low rainfall and a lack of available water.
What is it like living in the Sahara desert?
Life in the Sahara Desert is very difficult due to its climate. It receives less than 3 inches of rain every year. It may rain twice in one week, to an extreme of no rainfall over the next three years. Oasis are scattered throughout this desert, however, because of its size, itâ€™s not easy to trace.
Can you find biodiversity in the desert?
Deserts covers one fifth of the Earth’s land surface. Biodiversity includes all organisms, species, and populations. Due to harsh climate in deserts, only some of the most unusual plants and animals can survive in such regions.
What is the ecosystem of the Sahara Desert?
The Sahara Desert ecoregion covers the hyper-arid central portion of the Sahara where rainfall is minimal and sporadic. Vegetation is rare, and this ecoregion consists mostly of sand dunes (erg, chech, raoui), stone plateaus (hamadas), gravel plains (reg), dry valleys (wadis), and salt flats.
Why is biodiversity so low in the hot desert?
There is very little biodiversity in hot deserts because of the harsh climate. Few species are specialised enough to survive there. Plants and animals which do survive there have adapted to difficult conditions.
What is the diversity of a desert?
Desert species diversity is very much dependent on rainfall and vegetative cover, with the fewest plant and animal species in the driest deserts. The Sonoran Desert is especially rich in species, with a substantial variety of distinct plant associations.
What biodiversity means?
The term biodiversity (from “biological diversity”) refers to the variety of life on Earth at all its levels, from genes to ecosystems, and can encompass the evolutionary, ecological, and cultural processes that sustain life.
What is high biodiversity?
High biodiversity is a habitat or ecosystem that has a high number of different species.
Why is the Sahara desert an ecosystem?
The vegetation of the Sahara was highly diverse and included species commonly found on the margins of today’s rainforests along with desert-adapted plants. It was a highly productive and predictable ecosystem in which hunter-gatherers appear to have flourished. … Today, the Sahara is the largest hot desert in the world.
How do people survive in Sahara?
Some of the people who live in the Sahara raise crops on irrigated land in an oasis. Others tend flocks of goats, sheep, and camels. These herders find grass for the stock along the desert’s fringe or where sudden rains have fallen. They live in tents so they can move easily as soon as the grass is eaten in one place.
What kind of people live in the Sahara?
People who live in the Sahara are predominantly nomads, who move from place to place depending on the seasons. Whilst others live in permanent communities near water sources.