نتایج جستجو برای: caspian natural geography
تعداد نتایج: 502854 فیلتر نتایج به سال:
Abstract Coastal areas are dynamic and complex multi-function systems. A wide number of often conflicting human socio-economic activities occur in these areas. These include urbanization, tourism and recreational activities, industrial production, energy production and delivering, port activities, shipping, and agriculture. Coastal systems are also characterized by important ecological and ...
Wonder book writing has been of customary traditions in Islamic historiography. Wonder book writing first emerged as one type of Islamic geography and cosmology and in fact, it is the common product of natural history and geography. ʿAjāʾib Namah could be considered as unique forms of encyclopedias that are remarkable in terms of literary, cosmology, geography and natural history. In ʿAjāʾib Na...
the vegetation covering of a region has a direct correlation with climate. so if data is available for vegetation cover, the second variable (climate) can be easily predicted and in reverse. the dominant species in a region are indication of its climatic conditions and vice versa. accordingly, this is of significance in the science of historical botany. fortunately, from the first millennium ad...
Esophageal cancer is one of the ten most common malignancies worldwide (Parkin et al., 1999). The Kashmir region because of its geographical location is a part of the so called “Asian Esophageal Cancer Belt” (Deshpande et al., 2000), which extends from the northern provinces of China in the east to the southern shores of Caspian Sea in the west. It is one of the most common malignancies seen in...
Russian ( ), Persian ( ) and Siberian ( Acipenser gueldenstaedtii A. persicus A. ) sturgeons are closely related ‘Ponto-Caspian’ species. Investigation of baerii their population structure is an important problem, the solution of which determines measures for conservation of these species. According to previous studies, ‘baerii-like’ mitochondrial genotypes were found in the Caspian Sea among 3...
Current taxonomy of western Eurasian trout leaves a number of questions open; it is not clear to what extent some species are distinct genetically and morphologically. The purpose of this paper was to explore phylogeography and species boundaries in freshwater and anadromous trout from the drainages of the Black and the Caspian Seas (Ponto-Caspian). We studied morphology and mitochondrial phylo...
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The rapid rise of Caspian Sea water level (about 2.25 meters since 1978) has caused much concern to all five surrounding countries, primarily because flooding has destroyed or damaged buildings and other engineering structures, roads, beaches and farm lands in the coastal zone. Given that climate, and more specifically climate change, is a primary factor influencing oscillations in Caspian Sea ...
Russian ( Acipenser gueldenstaedtii), Persian ( A. persicus) and Siberian ( A. baerii) sturgeons are closely related 'Ponto-Caspian' species. Investigation of their population structure is an important problem, the solution of which determines measures for conservation of these species. According to previous studies, 'baerii-like' mitotypes were found in the Caspian Sea among 35% of Russian stu...
We present here the findings from a study of the microbiome of the southern basin of the Caspian Sea, the largest water body on Earth disconnected from any ocean and a brackish inland sea. By high-throughput metagenomics, we were able to reconstruct the genomes of representative microbes. The gross community structure (at the phylum level) was different from the structure of typical marine and ...
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