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Mount <i>Kawa Karpo</i> of the <i>Menri</i> ('Medicine Mountains' in Tibetan), in the eastern Himalayas, is one of the most sacred mountains to Tibetan Buddhists. Numerous sacred sites are found between 1900 and 4000 m, and at higher elevations the area as a whole is considered a sacred landscape. Religious beliefs may affect the ecology of these sacred areas, resulting in unique ecological characteristics of importance to conservation; recent studies have demonstrated that sacred areas can often play a major role in conservation. The goal of this study is to preliminarily analyze the vegetation of sacred areas in the <i>Menri</i> region using existing vegetation maps and a Geographical Information System (GIS) for remote assessment. Sacred sites are compared to random points in the landscape, in terms of: elevation, vegetation, and nearness to villages; species composition, diversity, and richness; and frequency of useful and endemic plant species. Detrended correspondence analysis (DCA) ordination reveals that sacred sites differ significantly in both useful species composition (<i>p</i>=0.034) and endemic species composition (<i>p</i>=0.045). Sacred sites are located at lower elevations, and closer to villages, than randomly selected, non-sacred sites (<i>p</i>< 0.0001), and have higher overall species richness (<i>p</i>=0.033) and diversity (<i>p</i>=0.042). In addition, the high-elevation (> 4000 m) areas of the mountain - a sacred landscape - are found to have significantly more endemics than low-elevation areas (<i>p</i><0.0001). These findings represent an initial analysis of sacred sites and suggest that sacred sites in the <i>Menri</i> region may be ecologically and ethnobotanically unique.

Khawa Karpo, in the eastern Himalayas, is a mountain considered sacred throughout Tibet, and is internationally recognized as a global biodiversity hotspot. Numerous areas within this landscape are considered ‘sacred’ by the indigenous Tibetans of the region, who interact with these sites in ways potentially beneficial to conservation. Our previous remote sensing study indicated that sacred sites are found in habitats with greater species richness, diversity, and endemism than randomly selected non-sacred sites. This study examines the role of sanctity in biodiversity conservation within habitats in the Khawa Karpo region by pairing plots within the same habitats in sacred and non-sacred areas. Understory richness, diversity, cover, and number of useful species are measured; for trees, richness, diversity, cover, and density are measured. Results indicate that within habitats sanctity does not affect understory plant communities; however, within sacred areas trees are larger (p = 0.003) and forests have greater cover (p = 0.003) than non-sacred areas. Our results indicate that, whereas placement of sacred areas and preservation of vegetation cover affects useful plants, biodiversity and endemism, within habitats sacred sites preserve old growth trees and forest structure. In sum, Tibetan sacred sites are ecologically unique and important for conservation on varying scales of landscape, community, and species.