Abstract
Very little research has been conducted in the Himalayan and Karakorum Highlands of northern Pakistan on the aspects of biodiversity and conservation. The present research was carried out within the scope of the Pakistan–German Research Project, ‘Culture Area Karakorum’ which aims to highlight the ‘Problems and Prospects of High-Mountain Research’ in northern Pakistan. Naltar Valley, IUCN Management Category no. 4, located in the western Karakorums, is a remote area with difficult access. The current venture is two-fold; first, it describes the floral biodiversity of this remote area in northern Pakistan and second, discusses its exploitation by various entities with certain management implications to follow. Collection of species, their preservation and dialogue with the local, rural communities offered information on the plant biodiversity, providing the first extensive list of flora at the primary-valley level including their altitude range, habit and month of occurrence. In total, 153 plant species belonging to 38 families and 113 genera have been recorded after extensive field research in the area. Dominance has been observed for Asteraceae, Polygonaceae, Saxifragaceae and Rosaceae. Twenty-four plant species from Naltar emerged as ethnobotanically important for local medicinal uses and some commercial uses. Indeed, Thymus serpyllum, Gentiana tianshanica, Stellaria graminea, Geranium wallichianum and Capparris spinosa are the most important medicinal plants and their demand has increased, leading to over-exploitation. Cedrus deodara has completely disappeared from Naltar and Willow Salix sp. has almost been eradicated, except in the sub-alpine belts. The diversity of plant species within this remote area is very important for its obvious contribution to a sound mountain ecosystem. Prior to the present venture, not much was known about the floral aspects of this mountainous region of northern Pakistan. Many species are new additions to the plant list in this area. The species are distributed within the altitude range of 1,700–4,000 m and above, and are further explored for their ethnobotanical uses. It is recorded that some species are extensively used by the indigenous communities, some plant collectors from the lowlands and foreigners as well. Extensive grazing, uprooting of plants and soil-slope erosion intensify the environmental problems. A few species are further used for curing diseases through direct usage or marketing in the lowlands. Unfortunately, due to minor local conflicts, the area has been given low priority for its inclusion in the development and conservation programmes going on in other parts of these mountains. On the other hand, hospitable populations have a greater potential for the success of conservation and the wise usage of programmes. Concerted efforts are required to broaden our understanding of the dynamics of floral values as well as local concepts in this remote part of the world, and to check species decline. For sustainable use, in situ and ex situ conservation, controlled harvesting and aforestation may be the solution. Further extensive field conservation/management research is needed.
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Sheikh, K., Ahmad, T. & Khan, M.A. Use, exploitation and prospects for conservation: people and plant biodiversity of Naltar Valley, northwestern Karakorums, Pakistan. Biodiversity and Conservation 11, 715–742 (2002). https://doi.org/10.1023/A:1015584202121
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DOI: https://doi.org/10.1023/A:1015584202121