نتایج جستجو برای: geographical distribution
تعداد نتایج: 649511 فیلتر نتایج به سال:
A new Alcea species A. ilamica (Malvaceae), is described from Ilam province of Iran. The new species belongs to the sect. Pterocarpa. Differences from other Iranian species and its geographical distribution are discussed. SEM study of penicillate hairs showed that, A. ilamica is very similar to A. aucheri but has advanced characters. Illustrations and a distribution map are given '>A new Alcea ...
با استفاده از شواهد مورفولوژیک و جغرافیایی، نشان داده می شود که hesperis leucoclada boiss. و pseudofortuynia esfandiarii hedge مترادف اند. ترکیب جدید pseudofortuynia leucoclada boiss. (khosravi) نام صحیح تاکسون است. قرابت pseudofortuynia مورد بحث قرار می گیرد.
Background and purpose: Hard ticks are important hematophagous arthropods belonging to the class Ârachnida. They transmit different groups of micro-organisms such as arboviruses, bacteria and parasites to animals and humans. Determining the fauna and geographical distribution of hard ticks in a given area is crucially important in planning the prevention and control programs. Materials and...
geographical bases have significant function in human settlements in terms of distribution and sustainability. thisstudy attempted to provide an insight into the role of geographical bases in rural settlement distribution in arid areas.accordingly, this study was done in the rural area of khour-biabanak, naein city in esfahan province. themethodology was that of a correlative research, to reali...
A rich and very dynamic Content distribution ecosystem enables today’s Internet users to access content associated with major providers from a close-by front-end server. While the advantages of the resulting locality of traffic for users (i.e. better performance) and providers (i.e. lower cost) are well understood, two basic questions about the content distribution ecosystem remained unanswered...
the species dibrachys lignicola graham is newly recorded from rayen region of kerman province, iran. the diagnostic characters and geographical distribution of the species are briefly discussed.
The aim of this research was to identify the plant species, introducing the flora and plant geographical distribution of Islamabad Gharb area, Kermanshah province. This area, with 4654 km2, is located in Kermanshah province. The method of plant collection was field survey which is one of classical methods of floristic studies. The geographical distribution and life form of plant species were de...
مطالعه نمونههای خاکزی جنس Cylindrospermum Kützing ex Bornet & Flahault از تیره Nostocaceae در ایران
جهت بررسی نمونههای خاکزی جنس Cylindrospermum Kützing ex Bornet & Flahault از تیره Nostocaceae تاکسونهای موجود در خاک 11 ایستگاه از 7 استان دارای قابلیت کشت برنج کشور مورد مطالعه قرار گرفت. طی این تحقیق در مجمـوع 18 نمونه متعلق به هشت گونه از جنس Cylindrospermum شناسایی شد. در میان گونههای شناسایی شده پنج گونه زیر Cylindrospermum sphaericum B. N. Prasad, Cylindrospermum catenatum (Ralfs) ...
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