in the present study, the tangrah region located in the vicinity of golestannational park was selected for exploring the changes in the amount of the secondaryessential of hypericin in hypericum perforatum in different highlands of the easterngolestan province. the aerial flowered parts of the herb were collected randomly and inthree replications from four altitudes of 300 m, 600 m, 900 m, and ...

fragmentation, or breaking apart of habitats, is one of the major causes of decline in biological diversity. mature ecosystems, especially dense forests are very sensitive to this phenomenon and roads are one of the major causes of fragmentation in forest landscapes. present investigation aims to trace landscape fragmentation in dense forests of golestan national park in northeast of iran betw...

Chirocephalus soulukliensis, an insular new species of fairy shrimp, is described from the Soulukli Wetland in Golestan National Park in northeastern Iran. The new species shares several characters with the loosely organized "Pristicephalus" group. It is readily separated from all congeners by the short, monolamellar form of the antennal appendage, which is un-armed, the distally expanded form ...

the leopard (panthera pardus) as an adaptable felid widely distributed in varied ecosystems of iran. the golestan natural park is one of the main habitats of leopard in the country. it has divers diet and preying various types of preys such as wild ungulate and livestock. the prey remains’ samples of leopard were collected and preserved using ethanol 96% and whole genomic dna was extracted. the...

fragmentation, or breaking apart of habitats, is one of the major causes of decline in biological diversity. mature ecosystems, especially dense forests are very sensitive to this phenomenon and roads are one of the major causes of fragmentation in forest landscapes. present investigation aims to trace landscape fragmentation in dense forests of golestan national park in northeast of iran betwe...

The leopard (Panthera pardus) as an adaptable felid widely distributed in varied ecosystems of Iran. The Golestan Natural Park is one of the main habitats of leopard in the country. It has divers diet and preying various types of preys such as wild ungulate and livestock. The prey remains’ samples of leopard were collected and preserved using ethanol 96% and whole genomic DNA was extracted. The...

considering the importance of biodiversity conservation and protection assessment activities, the present filed study was conducted with aim to compare vegetation diversity of two areas with different levels of protection including ghorkhod protected area with seasonal grazing and golestan national park without grazing, during spring and summer of 2011. four replications were selected in each a...

fragmentation is one of the major spatial processes leading to change in a landscape, which is described as transformation of a specific habitat or land cover to smaller patches with less connectivity and viability. construction of roads is one of the main causes of fragmentation in natural areas and habitats. presence of roads in ecologically sensitive and protected areas, leads to destruction...

the evaluation of ecological characteristics of wildlife species has fundamental role in species management, because taking a decision for proper method of management is only possible by characterizing of ecological requirements of a species. in this study, suitable habitat of middle spotted woodpecker was investigated in golestan national park. presence and absence of birds and environmental v...