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- Title
DISTRIBUTION PATTERNS AND PRIORITIES FOR CONSERVATION OF IRANIAN PTERIDOPHYTES.
- Authors
MEHRABIAN, A.; NASAB, F. K.; FRASER-JENKINS, C. R.; TAJIK, F.
- Abstract
Iran is the most diverse region of Southwestern Asia and is the main zone of the Iranian plateau, located at the intersection of the Irano-Turanian and Sudano-Zambezian floristic regions. The pteridophyte flora of Iran is mainly a Mediterranean, European type flora, but with a few African elements in the southwest and a small ancient Asiatic component related to Sino-Himalayan species in the north. The northern slopes of the Alborz mountain system are significantly affected by the humidity of the Caspian Sea, which has created the conditions for the survival of a temperate zone and the concentration of many moisture-loving species e.g. ferns, horsetails etc. However, there are also a few species of ferns in the arid zones of the country. In order to analyze the species richness mapping, 0. 5° × 0. 5° universal transverse Mercator grid cells 5 km with the exception of boundary areas were used as units of study. The conservation status of taxa was evaluated by GeoCAT, Kew. According to the present study, the Iranian pteridophyte flora includes 6 taxa of 7 genera belonging to 6 botanical families. Dryopteridaceae include the greatest numbers of threatened species CR, EN, and VU of Iranian pteridophytes. Some Iranian pteridophyes show a significant decline in populations resulting from vulnerability of their habitat. Unfortunately, illegal overharvesting of different ferns for ornamental purposes in flower shops has caused a population threat to many species. The present study determines the complete overall distribution pattern for occurrence of any Iranian Pteridophyte in Iran species and describes species-based and ecosystembased conservation priorities for habitat protection inside and outside the habitat.
- Subjects
IRAN; MIDDLE East; KEW (England); ENDANGERED species; HABITAT conservation; IRANIANS; FLOWERING of plants; ARID regions; GRID cells
- Publication
Fern Gazette, 2020, Vol 21, Issue 4, p141
- ISSN
0308-0838
- Publication type
Article