A study of threatened species of ferns in Gilan province (N Iran) providing a comparison of protective classification of conservation based on IUCN's factors
محل انتشار: دوفصلنامه رستنیها، دوره: 13، شماره: 1
سال انتشار: 1391
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 161
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شناسه ملی سند علمی:
JR_ROST-13-1_001
تاریخ نمایه سازی: 2 آبان 1401
چکیده مقاله:
During an investigation on pteridophytes (ferns) of Guilan province (N Iran), ۴۰۲ specimens were studied. Of these, ۴۴ species, under ۲۱ genera, belonging to ۱۳ families, were identified. Based on the approved instruction given by the "International Union for the Conservation of Nature and Natural Resources (IUCN)", after performing the filtering stage, ۱۷ species were identified as endangered. The results showed that different threat factors could be considered as an important step to all endangered plants. Deforestation, road-construction, uncontrolled grazing together with invasion of non-indigenous plants, are the most causes considered as threat factors in relation to fern community of the area. It also showed that, out of ۴۴ species that are so far identified from the area, one is considered as critically endangered (CR), five as endangered (EN), five as vulnerable (VU) and six as rare (R) species. In addition, ۲۰ species have suitable population, hence, do not need much attention.
کلیدواژه ها:
نویسندگان
مجید اسکندری
Former MSc Student, Department of Biology, Basic Science Faculty, Science and Research Branch, Islamic Azad University, Tehran, Iran (ferniran@yahoo.com)
برهان ریاضی
Assistant Prof., Department of Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
سعید شیرزادیان
Research Assistant Prof., Department of Botany, Iranian Research Institute of Plant Protection, P.O. Box ۱۹۳۹۵-۱۴۵۴, Tehran, Iran
علی مازوجی
Associate Prof., Department of Biology, Basic Science Faculty, Science and Research Branch, Islamic Azad University, Tehran, Iran