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The Sahara Desert
Transcript of The Sahara Desert
By Abirami R. and Netharsana J.
Organisms within the ecosystem
You may see the Sahara Desert as plain sand. Did you know there are numerous threats to the land itself,people,animals , an other organisms living in this environment? One of the biggest threats in the Sahara Desert including the people , animals and other organisms , a small population is a big issue. Due to being the hottest place and being the size of the United States it only has a population of about 2 million people. The rainfall it receives is also a big and SHOCKING threat. The weather is unpredictable. It can rain twice a week and not rain for a few years. The average rain fall it gets is only 3 INCHES I repeat 3 inches. This is called DESERTIFICATION. Did you know if you cut trees and other plants there is a more chance of less rainfall. This increases airborne dust which makes the air hotter making the rain clouds hard to form.
Preservation and Protection of the ecosystem/ biome
Not well protected (due to low population)
Largest protected area in Africa
One protected area in the Sahara Desert is the Zellaf Nature Reserve in Libya
Another way to protect/preserve is the Sahara Conservation Fund
The Sahara Conservation Fund conserves wildlife,habitats, and other natural resources
Sahara Desert was put under UNESCO's (an organization) list of world heritage in danger and still remains
To prevent Sahara desert desertification, there is a plan in Africa called the great green belt
The great green belt stops the sand to exceed its points
What we can do to protect the environment is to prevent global warming by taking better care of the environment and reducing pollution
Located in the northern part of Africa
About one-third of the continent
Hottest regions in the world
Over 9,400,000 sq kilometer (3,600,000 sq miles)
Sahara desert is from the Red Sea, across Meditarian Coast to parts of the Atlantic Ocean
includes the countries Algeria, Chad, Egypt, Eritrea, Libya, Mali, Mauritania, Morocco, Niger, Sudan, Tunisia and Western Sahara
Subtropical: lies near the tropics of Cancer and Capricorn. The hottest part of the globe
Very hot during the day so water here evaporates quickly
Average temperature 30 ° C (86°F). During its hottest months it can go to 50° C (122°F). It can even reach 58° C (136°F)
Windy and Rainfall is under 25mm
There are many interesting facts about the Sahara Desert . I can list a million but I'll tell you a few facts that amazed me.
Sahara desert is the largest hot desert in the world.
Studies have revealed the changing size of the Sahara desert.
Thousands of years ago, this area was actually a fertile land where animals like elephants and giraffes were seen grazing around. Around 6,000 years back, the climate started becoming drier, and has become what we see today
On an average, the yearly rainfall here is even less than 3 inches. Also, there is no consistency or trend that can be seen. Meaning, it may rain more than once over a span of a few days, or might not rain even for a couple of years at a stretch.
The northern part of the desert is subtropical.
The southern desert is usually very dry but it does have a rainy season and a mild, dry winter.
Unlike many people believe, the Sahara is not entirely sand. Hundreds of miles of surface and underground water are present on the landscape and sublandscape as well.
Resources of the Sahara Desert
The exports of the Sahara Desert are goods such as cotton cloth, metal ornaments, leather goods, and above all that GOLD! The Sahara Desert contains rich minerals, oil and natural gas. Even though water is hard to find in some areas, People who live beside lake can get water mainly from the Nile River. (and the other 20 lakes in the Sahara Desert) There are huge oil deposits in Algeria and Libya. When searching for oil underground water has also been found. Salt is also mined in the past in places like Niger, Bilma, Mali, and Taoudenni.
Has Venom that can cause significant damage to tissues and blood cells when injected into the human body. It is also an endangered species.
Most popular animal in the Sahara Desert.This is the main camel you will find and are a favourite among the Saharan people. Something interesting is that the hump is not storage for water,it is for fat. So when food is scarce,it feeds on the fat stored in the hump.
An attractive animal at the height of 65cm. It can run 49 miles per hour and weighs about 25 kilograms.
Survives eating animal waste and an essential animal in the desert. There are also three different types of dung beetles.
The Addax Antelope:
It is an endangered Animal (estimated 500 in exsistance). It is endangered because of poachers poaching its leather.
It can kill people with its tiny pincers with its neurotoxins.
Ostriches can travel long distances and have excellent hearing and eyesight. When predators are near, it can attack them by kicking with their strong legs.
It is very dangerous due to the fact that its venom is the same ad deadly and venomous snakes.They grow warm in well weather and when it gets extremely cold, it can become very aggresive
It is distinguished by its long ears. It weighs between 2 and 3.5 pounds and is about 14-17 inches.
It can withstand harsh conditions and doesn't drink water. It extracts as much water as it can from food. It normally eats insects,seeds and plants.
Other animals include:
gerbil, cape hare, the desert hedgehog, barbary sheep, oryx, dama deer, Nubian wild, anubis baboon, spotted hyena, common jackal, sand fox, Libyan striped weasel, the slender mongoose, frogs, toads, crocodiles, lizards, chameleons, skinks, cobras snails, brine and algae shrimps, ostriches, raptors, secretary birds, guinea fowl, Nubian bustards, desert eagle and barn owls, sand larks, pale crag martins, and brown-necked and fan-tailed ravens.
Other Plants include:
shrubs,trees cypress, olive, acacia ,artemisia, doum palm, oleander, date palm, thyme, Eragrostis, Panicum, and Aristida.
This plant has long roots that go very deep underground which helps the plant survive in hot conditions.
African Peyote Cactus:
The African Peyote Cactus has thick stems that hold water for an incredibly long time.The leaves are also reduced to spines which prevents water loss.
The main people who live in the Sahara desert are nomads. Nomads are people that constantly move from region to region to seek for better living conditions.Even though there are many languages in the region , Arabic is most spoken and the largest group of people are called Tuareg's.