Studying the Effect of Stand Characteristics on Plant Species Diversity in the Median Part of Natural Pinus brutia Ten. (Brutia pine)Forests in Al-Bayer and Al-Bassit Regions-Syria

This study was conducted in many natural sites in Al-Bayer and Al-Bassitregions inLattakiawhere there isthe main natural distribution of Brutia pine in Syria. The aim of the study is to analyse the relationship between the maincharacteristics of forest stands (forest mensuration) associated with silviculturetreatments, and plant diversity in the herbaceous layer of the forest. 32 circular plotsof 400 m2were sampled. Forest characteristics, plant species number and abundance(using Braun-Planquetindices)were recordedin each plot. Many diversity indices (SpeciesRichness, Shannon, Jaccard) were calculated. Species richness in the herbaceous layer correlated positively with age and negatively with volume, basal area, and forest cover in the over story. The effect of forest characteristics was more important on the vegetation composition than on the species richnessor Shannon index averages in the samples. Age was the most important characteristic influencing the vegetation composition, hence, the similarity between different age stages (expressed in Jaccard index). It is suggested in this study that when studying forest silviculture and management plans and when conserving biodiversity, life formsand functions must be considered instead ofthe traditional index.

Biodiversity of wild relatives of Crataegus in North-West region of Damascus countryside

Biodiversity of wild relatives of Cataegus were studied in North-West region of Damascus countryside located between latitudes 33.36 -33.58 N and longitudes 35.58-36.39 E including 7 sites and 21 subsites ranging from Zabadane to Alnabk. Results showed that the most of the individuals in the search area belonging to C. azarolus and var. aronia and rare individuals ere found to belong to C. monogyna. The study on the level of intraspecific variability showed the presence of of three taxanomic groups, each had been characterized with morphological and environmental qualities.The study also pointed to the where of these species and their different types are located and to the exist of corrlation between environmental factors and morphological variables.

Sustainable tourism in nature reserves in the Syrian Badia"Talila model"

Not natural reserves in both the goals and objectives; some of which is dedicated strict protection, especially those that have a scientific interest, some of which is dedicated to attracting visitors and tourist activities and the protection of the environment and cultural values, and this is what is called sustainable tourism, which is one of the most important types of tourism; because they are based primarily to protect the ecological balance, and the contemplation of nature, flora and fauna, and provides human comfort; Vtaatgely feature in sustainable tourism in generating opportunities for local parks, and business in the country, while protecting the environmental and cultural values in the protected areas. From this perspective, research the topic of sustainable tourism treated in Talila protected by shedding light on the development of tourism projects, which is a basic need and economic engine of the state and society at the same time, especially in the Syrian desert, as well as the ability of tourism projects to secure a sustainable financial resources.

Survey of Class Bryopsida Species (Mousses) in the “Bassel AL-Assad Forest- Idleb” and its Morphological and Anatomical Describtions

This research aims to describe the morphological and anatomical of Bryopsida species in the Bassel ALASSAD forest, through the project of the Biodiversity in Syria. Five species of Bryopsida were identified, four of them belong to “Acrocarpi Mosses group” and one belong to “Pleurocarpi Mosses group”. These species were studied morphologically according to the description of the parts “Gametophyte”,

Study of the morphological variability of reproductive organs of some species Hypericum genus in Syria

The results of studying the morphological characteristics of the flower, fruit, pollen grains, and seeds between some of Hypericum genus species, show that there are relevant morphological differences among the studied species, which can be considered as taxonomical criteria for distinguishing the studied species of Hypericum genus from each other.

Study of anatomical variability of some species hypericum genus in Syria

The results of studying of histological structure of leaf and stem , stomata patterns, the shape and size of stomata and the shape of epidermis cells and its walls between some of hypericum genus spceis (family clusiaceae), show that there are relevant anatomical differences among the studied species, which can be considered as taxonomical criteria for distinguishing the studied species of Hypericum genus from each other.

Study of plant Biodiversity in the Al Qunaitera region

The Studay was aimed at surveying the plant species growing in Al Qunaitera region, their dynamic distribution, environmental characteristics and economic values. Atotale number of 268 species were found belonging to 170 genera at 46 families. Only two of the founded species weren’t reported by Mouterde in his flora of Syria.

Classification of Basaltic Flora and Isolation of Rhizobium Strains from Some Wild legumes in Homs region

Some species of the Syrian Flora were waned, other were extincted. therefore, it was so nessesary to make a releve for restrict and classify the survival species in order to put them under conserving & improvement genetic program. The aim of this research was to study the plant diversity in West Homs; one of important basaltic region in Syria, and to concentrate on the wild legumes and the Rhizobium strains which cohabit with. A plant survey was carried out showed the existence of 365 species belong to 202 genera and 51 families, 15 species are endemic.12 species not observed previously in Syria but are found in Lebanon were recorded,in addition another 3 species not listed at all neither in Syria nor in Lebanon were mentioned. The geobotanical attributes and the economical importance of the gathered species were determined.as so as systematic keys of the most important families were suggested...The root nodules of 10 species belong to 10 genera of wild legumes were studied. Rhizobium strains were isolated and cultured in vitro. The morphologic characters were studied microscopy. The pure strains were reserved by refrigerator.

Role of Owls in Biological Control of Rodents in Syria

This study was carried out to determine the biodiversity of rodents and their distribution in Syrian Arab Republic, and to evaluate the role of owls as natural enemies against rodents. The investigation of owl pellets indicated that small mammals in general and especially rodents are the main food of owls. This investigation was able to identify ١٤ species, representing five families of rodents inside the pellets collected from different locations in Syria. these are: Microtus socialis.; Mesocricetus auratus; Cricetulus migratorius; Tatera indica; Mus musculus; Rattus norvegicus; Rattus rattus; Nesokia indica; Meriones tristrami; Meriones libycus; Meriones crassus; Allactaga euphratica; Jaculus jaculus and Spalax leucodon.

Studying of some factors affecting the plant species diversity in Quercus calliprinos Webb. Maquis at the eastern Versants of the Syrian Coastal Mountains

This research aims to studying the plant species diversity in the oak Maquis at the Eastern versants of the coastal mountains in Syria, and tries to identify the most important factors affecting this diversity.