Abstract
The present study highlights the rich species diversity of higher plants in the Bhabha Valley of western Himalaya in India. The analysis of species diversity revealed that a total of 313 species of higher plants inhabit the valley with a characteristic of moist alpine shrub vegetation. The herbaceous life forms dominate and increase with increasing altitude. The major representations are from the families Asteraceae, Rosaceae, Lamiaceae and Poaceae, suggesting thereby the alpine meadow nature of the study area. The effect of altitude on species diversity displays a hump-shaped curve which may be attributed to increase in habitat diversity at the median ranges and relatively less habitat diversity at higher altitudes. The anthropogenic pressure at lower altitudes results in low plant diversity towards the bottom of the valley with most of the species being exotic in nature. Though the plant diversity is less at higher altitudinal ranges, the uniqueness is relatively high with high species replacement rates. More than 90 % of variability in the species diversity could be explained using appropriate quantitative and statistical analysis along the altitudinal gradient. The valley harbours 18 threatened and 41 endemic species, most of which occur at higher altitudinal gradients due to habitat specificity.
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References
Aswal B.S. and Mehrotra B.N. 1994. Flora of Lahaul-Spiti. Bishen Singh Mahendra Pal Singh, Dehradun, India.
Bhandari B.S., Mehta J.P., Nautiyal B.P. and Tiwari S.C. 1997. Structure of a Chir Pine (Pinus roxburghii Sarg.) Community along an Altitudinal Gradient in Garhwal Himalaya. International Journal of Ecology and Environmental Science 23: 67–74.
Bhattarai K.R. and Vetaas O.R. 2003. Variation in Plant Species Richness of Different Life Forms along a Subtropical Elevation Gradient in the Himalayas, East Nepal. Global Ecology and Biogeography 12: 327–340.
Brown J. 2001. Mammals on Mountainsides: Elevational Patterns of Diversity. Global Ecology and Biogeography 10: 101–109.
Chauhan N.S. 1999. Medicinal and Aromatic Plants of Himachal Pradesh. Indus Publishing Co., New Delhi, India.
Chowdhery H. J. and Wadhwa B. M. 1984. Flora of Himachal Pradesh Analysis. Vol. I–III. Botanical Survey of India, Calcutta, India.
Collet H. 1902. — Flora simelensis. Botanical Survey of India, Calcutta, India.
Colwell R.K. and Hurtt G.C. 1994. Nonbiological Gradients in Species Richness and a Spurious Rapoport Effect. American Naturalist 144: 570–595.
Colwell R.K. and Lees D.C. 2000. The Mid-Domain Effect: Geometric Constraints on the Geography of Species Richness. Trends in Ecology and Evolution 15: 70–76.
Connell J.H. 1978. Diversity in Tropical Rain Forests and Coral Reefs. Science 199: 1302–1310.
DeBano L.F. and Schimdt L.J. 1990. Potential for Enhancing Riparian Habitat in the Southwestern United States with Watershed Practices. Forest Ecology and Management 33/34: 385–403.
Garkoti S.C. and Singh S.P. 1995. Variation in Net Primary Productivity and Biomass of Forests in the High Mountains of Central Himalaya. Journal of Vegetation Science 6: 23–28.
Gaur R.D. 1999. Flora of the district Garhwal north west Himalaya (with ethnobotanical notes). Transmedia, Srinagar(Garhwal), India.
Grime J.P. 1979. Plant Strategies and Vegetation Processes. John Wiley, New York.
Grytnes J.A. 2003. Ecological Interpretations of the Mid-Domain effect. Ecology Letters 6: 883–888.
Grytnes J.A. and Vetaas O.R. 2002. Species Richness and Altitude: a Comparison Between Null Models and Interpolated Plant Species Richness along the Himalayan Altitudinal Gradient, Nepal. American Naturalist 159: 294–304.
Henderson P.A. 2003. Practical Methods in Ecology. Blackwell Publishing, Oxford.
Heywood V. H. (ed.) 2000. Global Biodiversity Assessment. Cambridge University Press, Cambridge.
Hooker J.D. 1872–1897. The Flora of India. Vol. I–VII. L. Reeve and Co. Ltd., London.
Huston M. and DeAngelis D.L. 1994. Competition and Coexistence: the Effects of Resource Transport and Supply Rates. American Naturalist 144: 954–977.
Jain S.K. and Rao R.R. 1976. A Handbook of Field and Herbarium Methods. Today and Tomorrow Printers and Publishers, New Delhi.
Kala C.P. 2000. Status and Conservation of Rare and Endangered Medicinal Plants in the Indian Trans-Himalaya. Biological Conservation 93: 371–379.
Klimes L. 2003. Life-Forms and Clonality of Vascular Plants along an Altitudinal Gradient in E Ladakh (NW Himalayas). Basic and Applied Ecology 4: 317–328.
Lieberman D., Lieberman M., Peralta R. and Hartshorn G.S. 1996. Tropical Forest Structure and Composition on a Large-Scale Altitudinal Gradient in Costa Rica. Journal of Ecology 84: 137–152.
Lomolino M.V. 2001. Elevation Gradients of Species-Density: Historical and Prospective Views. Global Ecology and Biogeography 10: 3–13.
McIntosh, R.P. 1967. An Index of Diversity and the Relation of Certain Concepts to Diversity. Ecology 48: 392–404.
Nair N.C. 1977. Flora of Bashahr Himalaya. International Bioresource Publishers, Hissar-125001, India.
Nayar, M.P. 1996. Hotspots of Endemic Plants of India, Nepal and Bhutan. The Director, TBGRI, Trivandrum, India.
Nayar M.P. and Sastry A.R.K. (eds.) 1987–1990. Red Data Book of Indian Plants. Vol. I–III. Botanical Survey of India, Calcutta, India.
Palmer M.W. 1992. The Coexistence of Species in Fractal Landscapes. American Naturalist 139: 375–397.
Pausas J.G. and Austin M.P. 2001. Patterns of Plant Species Richness in Relation to Different Environments: an Appraisal. Journal of Vegetation Science 12: 153–166.
Polunin O. and Stainton A. 1984. Flowers of the Himalaya. Oxford University Press, Delhi, India.
Rau M.A. 1975. High Altitude Flowering Plants of West Himalaya. Botanical Survey of India, Calcutta, India.
Rawat J. and Pant C. 1999. Structure of a Chir Pine Community along Two Different Aspects and Altitudinal Gradients. Indian Journal of Forestry 22: 141–144.
Rey Benayas J.M. and Scheiner S.M. 2002. Plant Diversity, Biogeography and Environment in Iberia: Patterns and Possible Causal Factors. Journal of Vegetation Science 13: 245–258.
Saxena A.K., Pandey T. and Singh J.S. 1985. Altitudinal Variation in the Vegetation of Kumaun Himalaya. In: Rao D.N. et al. (eds.), Perspectives in Environment Botany. Print House, Lucknow, India. Pp. 43–66.
Stevens G.C. 1992. The Elevational Gradient in Altitudinal Range: an Extension of Rapoport’s Latitudinal Rule to Altitude. American Naturalist 140: 893–911.
Szaro R.C. 1989. Riparian Forest and Scrubland Communities of Arizona and New Mexico. Desert Plants 9: 69–138.
Vazquez J.A. and Givnish T.J. 1998. Altitudinal Gradients in the Tropical Forest Composition, Structure, and Diversity in the Sierra de Manantlan. Journal of Ecology 86: 999–1020.
Ved D.K. and Tandon V. (eds.) 1998. CAMP Report for High Altitude Medicinal Plants of Jammu-Kashmir and Himachal Pradesh. Foundation for Revitalization of Local Health Traditions, Bangalore, India.
Vetaas O.R. and Grytnes J.A. 2002. Distribution of Vascular Plant Species Richness and Endemic Richness along the Himalayan Elevation Gradient in Nepal. Global Ecology and Biogeography 11: 291–301.
WANG G., ZHOU G., YANG L. and LI Z. 2002. Distribution, Species Diversity and Life-form Spectra of Plant Communities along an Altitudinal Gradient in the Northern Slopes of Qilianshan Mountains, Gansu, China. Plant Ecology 165: 169–181.
Wilson M.V. and Schmida A. 1984. Measuring Beta Diversity with Presence-Absence Data. Journal of Ecology 72: 1055–1064.
Zimmerman J.C., DeWald L.E. and Rowlands P.G. 1999. Vegetation Diversity in an Interconnected Ephemeral Riparian System of North-Central Arizona, USA. Biological Conservation 90: 217–228.
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Chawla, A., Rajkumar, S., Singh, K.N. et al. Plant species diversity along an altitudinal gradient of Bhabha Valley in western Himalaya. J. Mt. Sci. 5, 157–177 (2008). https://doi.org/10.1007/s11629-008-0079-y
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DOI: https://doi.org/10.1007/s11629-008-0079-y