نوع مقاله : معرفی گونههای گیاهی نادر و در معرض انقراض ایران
نویسندگان
1 استادیار پژوهش، بخش گیاهشناسی، مؤسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران
2 پژوهشگر، بخش تحقیقات جنگل و مرتع، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی خراسان رضوی، سازمان تحقیقات، آموزش و ترویج کشاورزی، مشهد، ایران
3 استاد پژوهش، بخش گیاهشناسی، موسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران
4 استاد پژوهش، بخش گیاهشناسی، مؤسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Cousinia fabrorum Rech.f. is identified as a subshrub species belonging to the Asteraceae family. This particular species holds endemic status, found exclusively in the calcareous mountain regions of South Khorasan Province, located in Eastern Iran. Within the scope of the present investigation, the conservation status of C. fabrorum has been meticulously evaluated, adhering to the established IUCN criteria. This assessment encompassed key metrics such as the area of occupancy (AOO), the extent of occupancy (EOO), and the overall population size. The resultant findings indicate that this species is presently confined to a solitary population, predominantly manifesting as scattered patches within sandy-calcareous locales characterized by moderate gradients. The calculated mean average value for the AOO approximates one square kilometer. In accordance with the standardized criteria set forth by the IUCN, C. fabrorum is unequivocally categorized as a critically endangered species (CR). Notwithstanding its inherently spinose botanical structure, the limited natural habitats occupied by this species face severe and substantial threats originating from extensive livestock grazing. To ensure the effective ex-situ protection of this vulnerable species, comprehensive programs are imperative. These should encompass the meticulous collection of seeds, their secure preservation within the Natural Resources Seed Bank of the Research Institute of Forests and Rangelands, and subsequent cultivation efforts within the National Botanical Garden. Given the intrinsically restricted nature of its habitat, it is strongly recommended that this area be officially designated as a genetic reserve by the pertinent authorities, namely the Natural Resources and Watershed Management Organization.
کلیدواژهها [English]
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