As of today, there have been very few actions taken in the conservation of the Dama Gazelle. The few measures that have been taken are reserves so the animal can live in peaceful environment and captive breeding to help rebuild the populations.
There was a reserve for Mhorr gazelles set up in 1971 to help avoid extinction of the Dama Gazelle. This reserve is in Spain and is called The Parque de Rescate de la Fauna Sahariana of the Estación Experimental de Zonas Áridas. This is a good way to have the animals away from the threats that are imposed on them in the wild. This reserve has been a success and is still around today.
There was another reserve for the Mhorr subspecies in Chad called the Ouadi Rime-Ouadi Achime Faunal Reserve. This reserve was effective from 1978–1987, but due to civil war, the reserve was abandoned. Captive breeding is a very popular way to help an endangered species repopulate. This is a good way to have the species reproduce in captivity and then free them back into the wild. It can be a helpful way for the species to recover. It may be bad because small population sizes are used and there may not be enough genetic variance or there may be interbreeding between the animals. This is the most effective way to avoid the species from going extinct.
Addra Gazelles, part of the breeding program at the National ZooMost Addra gazelles are now managed in zoos and AZA institutions in the United States according to a Species Survival Plan. Small population size and inbreeding are a serious concern in this population due to the increased parasite load and reduced reproductive viability.No reserves for this subspecies exists in the wild, and few substantial in situ conservation efforts have been mounted due to the political situation in the current fragmented addra habitat.
To guarantee the survival of this species, there needs to be more reserves created to ensure the survival of this animal. They need to be created in the Sahelian and Saharan zones because this is where the highest concentration of gazelles reside. To help this species survive, humans must help them maintain a healthy captive population and help preserve their habitats in the wild.
Tuesday 22 March 2011
Tuesday 15 March 2011
What is special about Sahara Desert?(2 factors)
- The history of the desert dates back to 3 million years ago.
- Sahara desert has a combination climate. While it has subtropical climate in the northern parts, the region in south experiences tropical conditions.
who lives in Sahara desert?
NOMADS
The majority of the people living in the Sahara Desert are nomads, which means that these people are always moving from place to place. The picture above is of a nomadic man. The headdress he is wearing is called a howli. Why do you think he wears a howli in the desert? For their meals, the nomads can use only foods such as rice and dates that are easily carried as they move around. They also use sheep and camel meat in their recipes because those animals move with them.
BERBERS
Another group of people tshat live in the Sahara are the Berbers. Earlier in their history the Berbers lived across the whole northern part of Africa. In the 1600's the Arabs invaded North Africa and pushed the Berbers towards the Atlas Mountains and other areas near the Sahara. Today most of the Berbers live in Morocco and Algeria. They make up 40 percent of Morocco's population and 30 percent of Algeria's population. They live in rural areas where they raise sheep and cattle. Nowadays, some have even begun growing crops. In the larger villages, Berbers live in stone houses but in the smaller villages they live in tents or clay huts.
What type of natural vegetation is present at Sahara desert?
The Sahara Desert is often described as a bleak and barren plain. In truth, it is very beautiful and full of different Sahara Desert vegetation.
There are still some areas of the Sahara Desert that can be considered lush and green. The Nile Valley, for example, is an area that is still quite full of foliage, trees and other growing things. This area is an exception, because of the way it is fed by the Nile River. Another area of the Sahara that has some vegetation to it is in the North, along the Mediterranean - here, olive trees grow in abundance. The Saharan highlands are also home to species of trees, such as the doum palm, date palm and oleander; as well as herbs such as thyme.
The rest of the Sahara Desert is sparse and vegetation does not cover much of the area. Here, away from rivers and highlands, grasses and shrubs that have adapted to the high heat of the area manage to survive. Also, halphytes, which are saline-tolerant plants (those plants which can grow in areas of high salt content) grow in the saline depressions of the Sahara. For a desert area, the Sahara manages to have many different types of vegetation, all of which have had to adapt to the unique challenges of a dry desert climate.
What is the climate of Sahara desert?
The Sahara desert generally features an arid climate. The Sahara desert is one of the hottest regions of the world, with a mean temperature over 30 °C (86 °F). Variations may also be huge, from over 50 °C (120 °F) during the day during the summer, to temperatures below 0 at night in summer. The Sahara receives very little rain in the Inter-Tropical Convergence Zone which moves up from the south. Wind and sand storms occur as soon as early spring. Local inhabitants protect themselves from heat, cold and mostly wind and sand by covering their heads, such as the cheche worn by Tuareg.
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