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Assessment of the Conservation Status of Astragalus oihorensis Ali: A Critically Endangered Narrow Endemic Species in Chitral, Hindu Kush Range, Pakistan

. Ghulam Jelani & Siraj-ud-Din


Abstract

Astragalus oihorensis Ali (Fabaceae-Papilionoideae) is a narrow endemic species which is endemic to its type locality i.e. Ojhor Valley in District Chitral, at an altitudinal range of 11000 to 12500 ft. A total of 87 mature individuals of this species were observed in 2016, 102 in 2017 and 96 in 2018. The grazing index was 19.54% in 2016, 23.52% in 2017 and 37.50% in 2018 which indicates that it was less grazed in 2016 and moderately grazed in 2017 and 2018. On the basis of extensive floristic surveys for three consecutive years (2016-2018), extent of occurrence (8 km2), area of occupancy (3.801 km2), population data, soil erosion and grazing pressure,  Astragalus oihorensis is categorized as Critically Endangered (CR) species according to IUCN Red List Categories and Criteria 2012. There is dire need to develop species-specific in-situ and ex-situ conservation strategies and their effective implementation at the national level in order to save this species from extinction.

Index Terms- Conservation status, Astragalus, Endemic, Critically Endangered, Chitral, Pakistan.

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