Document Details
|
Document Type |
: |
Thesis |
|
Document Title |
: |
Study of Animal diversity in Tabuk region, Saudi Arabia دراسة التنوع الحيواني في منطقة تبوك,المملكة العربية السعودية |
|
Subject |
: |
biological sciences department |
|
Document Language |
: |
Arabic |
|
Abstract |
: |
Biodiversity is a biological concept mean the total environmentally differences in the ecology starting from gene level, ecosystem and species in a particular area. This study was in the Tabuk region in the north-west Saudi Arabia. This research was field work through a year over different seasons in a specific area 500 m x 500 m includes agricultural and land part, through field visits to record the observation and set traps. The aim was to inventory all animal species, physical description, described the vegetation in general, calculate the biodiversity index and calculating the relative abundance and species richness for all classes in the region. A biotic factors has been studied such as the temperature the maximum temperature was 44 ⁰ in summer, 9 ⁰ in winter, and the rate of minimum temperature was 34 ⁰ in summer,2 ⁰ in winter, and the rise from the sea was 771 meters. Biotic factors was studied and focus on animal community calculating diversity index H=- ΣPi (LnPi). The study showed that H of all classes was 2.02, and found a great diversity rate in birds (72 species) H= 3.05, but mammals (10 species) H=1.5. Reptiles (18 species) H=2.3. Amphibians were 5 species of frogs of 7 species, H=1.4. Fresh fish (3 species) H= 0.92. Invertebrates 8 species of scorpions and 5 of spiders, H=1.78 and 0.9. Insects 93 species, H=3.86. Species richness is one of methods of measuring biodiversity but abundance is refers to the proportional representation of species in a particular ecosystem and measured by large number of individuals. Abundance was calculated: S = number of individuals in one type \ the total number of individuals in all species. The results showed the inverse relationship between species diversity and the relative abundance and species richness. In birds, the abundance indicates that there was presence of dominant species (pigeon and sparrows) others rare. In insects were plenty close throughout the year but recorded the highest percentage in the summer and least in winter, also some dominant species was recorded, the abundance is high (Formicoidea) and other rare abundance is limited. As for the rest of the communities varied rates of species but in general there were few. Reptiles Stenodactylus arabicus and stenodactylus grandiceps the largest share in terms of abundance. Mammals higher abundance of Gerbillus nanus and least in Spalax leucodon. The abundance of spiders was convergent except in Pholcus phalangioide. Scorpions were convergent abundance except in Leiurus quinquestraitus and Compsobuthus arabicus. Finally, amphibians were the highest percentage of 21% and in fish were 25%, the lowest in insects and birds, 3% and 1%. The study recommends the work of a joint study by and large designed to measure biodiversity and the search for abundant in other regions in the Kingdom of Saudi Arabia, also the focus on the study of plant diversity in Tabuk. |
|
Supervisor |
: |
Dr. Hassan M. D. Felemban |
|
Thesis Type |
: |
Master Thesis |
|
Publishing Year |
: |
1433 AH
2012 AD |
|
Added Date |
: |
Sunday, January 15, 2012 |
|
Researchers
| أروى محمد بدوي | Badawi, Arwa Mohammed | Researcher | Master | |
|
Back To Researches Page
|