1. Anon. (1883-1970). Index Kewensis Plantarum Phanerogamarum Vol. 1-2 (1883- 1885) and 15 Suppl. (1886-1970). Clarendron Press, Oxford

2. Arya, S.C. (2002). Assessment of habitat diversity, distribution of vegetation and human dependence in alpine meadows of Nanda Devi Biosphere Reserve, West Himalaya. Ph.D. Thesis, submitted to Kumaun University Nainital

Google Scholar

3. Ashton, P.S. (1964). A quantitative phytosociological technique applied to tropical mixed rain forest vegetation. Malayan Forests, 27: 304-317

Google Scholar

4. Auerbach, M. and Shmida, A. (1993). Vegetation change along an altitudinal gradient on MT. Hermon, Israel: no evidence for discrete communities. Journal of Ecology, 81:25-33.  https://doi.org/10.2307/2261221

Google Scholar

5. Austin, M.P. and Smith, T.M. (1989). A new model for the continuum concept. Vegetatio, 83: 35-47.  https://doi.org/10.1007/BF00031679

Google Scholar

6. Austin, M.P. (1985). Continuum concept, ordination methods and niche theory. Annual Review of Ecology and Systematics, 16: 39-61.  https://doi.org/10.1146/annurev.es.16.110185.000351

Google Scholar

7. Beerling, D. (1994). Predicting the response of the introduced species Fallopia japonica and Impatiens glandulifera to global climate change. In: Ecology and management of invasive riverside plants (eds. L.C. Waal, L.E. Child, P.M. Wade & J.H. Birck). John Wiley, New York

Google Scholar

8. Burgess, P.F. (1961). The structure and composition of lowland tropical rain forest in north Borneo. Malayan Forester, 24: 66-80

Google Scholar

9. Campbell, D.G., Stone, J.L. and Rosas A.J. (1992). A comparison of phytosociology and dynamics of three flood plain (Varzea) forests of Known ages, Rio Jurva, Western Brazilian Amazon. Journal of Linnean Botanical Society, 198: 213-237.  https://doi.org/10.1111/j.1095-8339.1992.tb00240.x

Google Scholar

10. Champion, H.G. and Seth, S.K. (1968). A Revised Survey of Forest types of India. Manager of Publication, Government of India, Delhi

Google Scholar

11. Chandrashekara, U.M. and Ramakrishnan, P.S. (1994). Vegetation and gap dynamics of a tropical wet evergreen forest in Western Ghats of Kerala, India. Journal of Tropical Ecology, 10: 337-354. https://doi.org/10.1017/S0266467400008014

Google Scholar

12. Clements, F.E. (1916). Plant succession: an Analysis of the development of Vegetation. Carnegic Institute Washington, Publication 242.   https://doi.org/10.5962/bhl.title.56234

Google Scholar

13. Cottam, G. (1949). The phytosociology of an oak wood in south western Wisconsin. Ecology, 30: 271-287.  https://doi.org/10.2307/1932609

Google Scholar

14. Crawley, M.J. (1989). The relative importance of vertebrate and invertebrate herbivores in plant population dynamics in Insect-Plant interactions (ed EA Bernays), CRC Press, Boca Raton, 1:45-71.  https://doi.org/10.1201/9780429290916-2

Google Scholar

15. Curtis, J.T. and McIntosh, R.P. (1951) An upland forest continuum in the prairie-forest border region of Wisconsin. Ecology, 32: 476-494.  https://doi.org/10.2307/1931725

Google Scholar

16. Dabel, C.V. and Day, F.P. (1977), Structural composition of four plants communities in the Great Dismal Swamp, Virginia. Bulletin of Torrey Botanical Club, 104: 352-360.  https://doi.org/10.2307/2484780

Google Scholar

17. Daubenmire, R.F. (1959). Plants and Their Environment. A Text Book of Plant Ecology, 2nd edition, John Willey, New York

18. Dhar, U. and Samant, S.S. (1993). Endemic plant diversity in the Indian Himalaya: Ranunculaceae and Paeoniaceae. Journal of Biogeography, 20: 659-668. 1 https://doi.org/10.2307/284552

Google Scholar

19. Dhar, U., Rawal, R.S. and Samant, S.S. (1997). Structural diversity and representativeness of forest vegetation in a protected area of Kumaun Himalaya, India: implications for conservation. Biodiversity Conservation, 6: 1045-1062. https://doi.org/10.1023/A:1018375932740

Google Scholar

20. Dukes, J.S. and Mooey, H.A. (1999). Does global change increase the success of biological invaders? Trends in Ecology and Evaluation, 14: 135-139.  https://doi.org/10.1016/S0169-5347(98)01554-7

Google Scholar

21. Gentry, A.H. (1988). Changes in plant community diversity and floristic composition on environmental and geographical gradients. Annals of Missourrie Botanical Garden, 75: 1-34.  https://doi.org/10.2307/2399464

Google Scholar

22. Ghate, U., Joshi, N.V. and Gadgil, M. (1998). On the pattern of tree diversity in the western Ghats of India. Current Science, 75: 594-604

Google Scholar

23. Gleason, H.A. (1917). The structure and development of the plant association. Bulletin of the Torrey Botanical Club, 43:463-481.  https://doi.org/10.2307/2479596

Google Scholar

24. Gleason, H.A. (1926). The individualistic concept of the plant association. Bulletin of Torrey Botanical Club, 53: 7-26.   https://doi.org/10.2307/2479933

Google Scholar

25. Greig-Smith, P. (1957). Quantitative Plant Ecology. Academic Press, New York

Google Scholar

26. Hagvar, S. (1976). Altitudinal zonation of the Invertebrate fauna on branches of birch (Betula utilis Erh.). Journal of Norwegian Entomology, 23: 61-74

Google Scholar

27. Hamilton, A.C. (1975). A quantitative analysis of altitudinal zonation in Uganda Forests. Vegetatio, 30: 99-106.  https://doi.org/10.1007/BF02389611

Google Scholar

28. Holdridge, L.R. (1967). Life Zone Ecology, Tropical Science Center, San Jose, Costa Rice. In: Forest Environments in Tropical Life Zones, a Pilot Study (eds. Holdridge LR, Greenke WC, Hatheway WH, Liang T, Tosi JA), Pergamon, New York

Google Scholar

29. Holway, J.G. and Ward, R.T. (1965). Phenology of alpine plants in Northern Colorado. Ecology, 46: 73-83.  https://doi.org/10.2307/1935259

Google Scholar

30. Jeet, R., Singh, S.P. and Singh, J.S. (1988). Community level phenology of grassland above tree line in Central Himalaya. Arctic, Antarctic and Alpine Research, 20: 325-332.  https://doi.org/10.2307/1551264

Google Scholar

31. Joshi, H.C. (2002). Assessment of habitat diversity, forest vegetation and human dependence in the Buffer Zone of Nanda Devi Biosphere Reserve of West Himalaya. Ph. D. Thesis, submitted to Kumaun University Nainital

Google Scholar

32. Joshi, H.C. and Samant, S.S. (2003). Assessment of forest vegetation and prioritization of communities for conservation in a part of Nanda Devi Biosphere Reserve, West Himalaya, India I. International Journal of Sustainable Development & World Ecology, 11: 000-000.  https://doi.org/10.1080/13504500409469835

Google Scholar

33. Joshi, H.C., Arya, S.C. and Samant, S.S. (1999). Diversity, distribution and indigenous uses of medicinal and edible plants of a part of Nanda Devi Biosphere Reserve I. Himalayan Biosphere Reserve Biannual Bulletin. 1(1&2): 49-65

Google Scholar

34. Joshi, H.C., Arya, S.C. and Samant, S.S. (2001). Diversity, distribution and indigenous uses plants in Pindari region of Nanda Devi Biosphere Reserve. Indian Journal of Forestry, 24 (4): 514-536

Google Scholar

35. Keel, S.H.K. and Prance, G.T. (1979). Studies of the vegetation of a white sand black water igapo (Rio Negro, Brazil). Acta Amazonica, 9: 645-655.  https://doi.org/10.1590/1809-43921979094645

Google Scholar

36. Kersaw, K.A. (1973). Quantitative and dynamic plant ecology. Second edition. Edward Arnold Limited, London

37. Kikkawa, J. and Williams, E.E. (1971). Altitude distribution of land birdsin New Guinea. Search, 2: 64-65

Google Scholar

38. Killingbeck, K.T. and Walli, M.K. (1978). Analysis of a north Dacota gallery forest: nutrient, trace element and productivity relations. Oikos, 30: 29-60.  https://doi.org/10.2307/3543521

Google Scholar

39. Kitayama, K. (1992). An altitudinal transect study of the vegetation on Mount Kinabalu, Borneo. Vegetatio, 102: 149-171.  https://doi.org/10.1007/BF00044731

Google Scholar

40. Kowarik, I. (1990). Some responses of flora and vegetation to urbanization in Central Europe. In: Urban Ecology (eds. Sukopp H, Hejny S, Kowarik I). SPB, The Hague

Google Scholar

41. Kumar, K, Oli, B.P., Joshi, B.M. and Samant, S.S. (2001). The faunal diversity of Nanda Devi Biosphere Reserve, in west Himalaya. Himalayan Biosphere Reserve (Biannual Bulletin). 3 (1&2): 18-57

42. Lonsdale, W.M. (1999) Global patterns of plant invasions and the concept of invisibility. Ecology, 80: 1522-1536.  https://doi.org/10.1890/0012-9658(1999)080[1522:GPOPIA]2.0.CO;2

Google Scholar

43. Macdonald, I.A.W, Graber, D.M., DeBenedetti, S., Grooves, R.H. and Fuentes, E.R. (1988). Introduced species in nature reserves in Mediterranean type climate regions of the world. Biological Conservation, 44: 37-66.  https://doi.org/10.1016/0006-3207(88)90004-3

Google Scholar

44. McIntosh, R.P. (1985). The Background of Ecology. Annual Review of Ecology and Systematics, 18: 41-321.  https://doi.org/10.1017/CBO9780511608537

45. Mihulka, S. (1998). The effect of altitude on the pattern of plant invasion: a field test. In: Plant Invasions: Ecological Mechanisms and Human Responses (eds. U. Starfinger, K. Edwards, I. Kowarik, & M. Williamson). Backhuys, Leiden

Google Scholar

46. Mueller-Dombois, D. and Ellenberge, H. (1974). Aims and Methods of Vegetation Ecology. John Willey and Sons, New York

Google Scholar

47. Naithani, B.D. (1984 and 1985). Flora of Chamoli district. Vol. I & II. Botanical Survey of India, Howrah

Google Scholar

48. Navaroo, A.G.S. (1992). Altitudinal distribution of birds in the Sierra Madre del Sur, Guerrero, Mexico. Condor, 94: 29-39.  https://doi.org/10.2307/1368793

Google Scholar

49. Nayar, M.P. and Sastry, A.R.K. (1987, 1988, 1990) Red Data Book of Indian Plants. Vol. I-III. Botanical Survey of India, Calcutta

Google Scholar

50. Osmaston, A.E. (1927). A Forest Flora for Kumaun. International Book Distributors, Dehra Dun (Reprinted 1978)

51. Pangtey, Y.P.S., Rawal, R.S. and Bankoti, N.S. and Samant, S.S. (1990). Phenology of high- altitude plants of kumaun in Central Himalaya, India. International Journal of Biometeorology, 34: 122-127.  https://doi.org/10.1007/BF01093457

Google Scholar

52. Pangtey, Y.P.S., Samant, S.S. and Rawal, R.S. (1993). Enumeration of ferns of Pindari, Sarju and East Ram Ganga valleys of Kumaun (Western Himalaya). Higher plants of Indian Sub-continent (Additional Series of Indian Journal of Forestry), 4: 119-152

Google Scholar

53. Parthsarthy, N. and Kartikeyan, R. (1997a). Bodiversity and population density of woody species in a tropical evergreen forest in Courtallum Reserve Forest, Western Ghats, India. Tropical Ecology, 38: 297-306

Google Scholar

54. Parthsarthy, N. and Kartikeyan, R. (1997b). Plant biodiversity inventory and conservation of two tropical dry evergreen forests on the Coromandal coast South India. Biodiversity and Conservation, 6: 1063-1083

Google Scholar

55. Parthsarthy, N., Kinhal, V. and Kumar, L.P. (1992). Plant species diversity and human impacts in the tropical wet evergreen forests of south western Ghats. In: Indo French Workshop on Tropical Forest ecosystems: natural functioning and anthropogenic impact. 26-27 November 1992, Pondicherry, French Institute

Google Scholar

56. Pascal, J.P. and Pelissier, R. (1996). Structure and floristic composition of a tropical evergreen forest in Southwest India. Journal of Tropical Ecology, 12: 192-214.  https://doi.org/10.1017/S026646740000941X

Google Scholar

57. Patterson, B.D., Stotz, D.F., Solari, S., Fitapatrick, J.W. and Pacheco, V., (1998). Contrasting patterns of elevational zonation for birds and mammals in the Andes of south eastern Peru. Journal of Biogeography, 25: 593-607.  https://doi.org/10.1046/j.1365-2699.1998.2530593.x

Google Scholar

58. Polunin, O. and Stainton, A. (1984), Flowers of the Himalaya. Oxford University Press, Oxford

Google Scholar

59. Pysek, P., Jarosik, V. and Kucera, T. (2002). Patterns of invasion in temperate nature reserves. Biological Conservation, 104: 13-24.  https://doi.org/10.1016/S0006-3207(01)00150-1

Google Scholar

60. Rai, S.N. and Procter, J. (1986). Ecological studies on four rainforests in Karnataka, India 1: Environment, Structure, Floristic and Biomass. Journal of Ecology, 74: 439-454.  https://doi.org/10.2307/2260266

61. Ramensky, L. (1924). Die Grundqesetzmassigkeiten in Aufbau der Vegetationsdecke (Russian). Vestnik Optyn, dela Sredne-Chernoz. Obl., Voronezh. (Bot. Centrbl., NF, 7:453-455, 1926)

Google Scholar

62. Rawat, G.S. (1984). Studies on the high altitude flowering plants of the Kumaun Himalaya. Ph.D. Thesis, Kumaun University, Nainital

63. Reiners, W.A. (1972). Structure and energetics of three Minnesota forests. Ecological Monograph, 42: 71-94.  https://doi.org/10.2307/1942231

Google Scholar

64. Richards, P.W. (1952). The Tropical Rain Forests. Cambridge University Press, London

Google Scholar

65. Samant, S.S. (1993). Diversity and status of Plants in Nanda Devi Biosphere Reserve. In: Scientific and Ecological Expedition Nanda Devi 1993. Report, Army Head Quarters, New Delhi

Google Scholar

66. Samant, S.S., Rawal, R.S. and Dhar, U. (1993). Botanical hot spots of Kumaun Himalaya: Conservation Perspectives. In: Himalayan Biodiversity: Conservation Strategies (ed. Dhar U), Gyanodaya Prakashan, Nainital

Google Scholar

67. Samant, S.S. and Dhar, U. (1997). Diversity, Endemism and Economic Potential of Wild Edible Plants of Indian Himalaya, India. International Journal of Sustainable Development & World Ecology, 4: 179-191.  https://doi.org/10.1080/13504509709469953

Google Scholar

68. Samant, S.S., Dhar, U. and Rawal, R.S. (1996). Conservation of rare endangered plants: The context of Nanda Devi Biosphere Reserve, in Himalaya. In: Conservation and Management of Biological Resources in Himalaya (eds. Ramakrishnan et al.). Oxford and IBH Publishing Co. Pvt. Ltd., New Delhi

Google Scholar

69. Samant, S.S., Dhar, U. and Rawal, R.S. (1998a). Biodiversity status of a protected area of West Himalaya- 1. Askot Wildlife Sanctuary. International Journal of Sustainable Development & World Ecology, 5: 193-203.  https://doi.org/10.1080/13504509809469983

Google Scholar

70. Samant, S.S., Dhar, U. and Palni, L.M.S (1998b). Medicinal Plants of Indian Himalaya: Diversity Distribution Potential values. Gyanodaya Prakashan, Nainital

Google Scholar

71. Samant, S.S. (1999). Diversity, nativity and endemism of vascular plants in a part of Nanda Devi Biosphere Reserve in west Himalaya I. Himalayan Biosphere Reserves (Biannual Bulletin), 1(1&2): 1-28

Google Scholar

72. Samant, S.S., Dhar, U. and Rawal, R.S. (2000). Assessment of fuel resource in Askot Wildlife Sanctuary of West Himalaya, India: Conservation and Management Perspectives. Environmental Conservation, 27(1): 5-13.  https://doi.org/10.1017/S0376892900000023

Google Scholar

73. Samant, S.S., Joshi, H.C. and Arya, S.C. (2000). Diversity, nativity and endemism of vascular plants in Pindari area of Nanda Devi Biosphere Reserve- II. Himalayan Biosphere Reserve (Biannual Bulletin), 2 (1&2): 1-29

Google Scholar

74. Samant, S.S., Joshi, H.C., Pant, S. and Arya, S.C. (2001a). Diversity, nativity and endemism of vascular plants in Valley of Flowers National Park. Himalayan Biosphere Reserve (Biannual Bulletin), 3 (1&2): 1-17

Google Scholar

75. Samant, S.S., Dhar, U., Palni, L.M.S. (2001b). Himalayan Medicinal plants: Potential and Prospects. Gyanodaya Prakashan, Nainital

Google Scholar

76. Samant, S.S., Oli, B.P., Joshi, B.M. and Kumar, K. (2002a). Nanda Devi Biosphere Reserve (Nomination Form for UNESCO MAB Net). Database submitted to Ministry of Environment and Forests, New Delhi for UNESCO MAB-Net

77. Samant, S.S., Joshi, H.C., Arya, S.C. and Pant, S. (2002b). Studies on the structure, composition and changes of vegetation in Nanda Devi Biosphere Reserve of West Himalaya. Final Technical Report submitted to Ministry of Environment and Forests, New Delhi

Google Scholar

78. Samant, S.S., Joshi, H.C. and Arya, S.C. (2001c). Studies on the structure, composition and changes of vegetation in Nanda Devi Biosphere Reserve of west Himalaya. In: Biosphere Reserves in India and their Management (eds. J.K. Sharma, P.S. Easa, C. Mohanan, N. Sasidharan & R.K. Rai). Ministry of Environment and Forests, New Delhi and Kerala Forest Research Institute, Peechi, Kerala

Google Scholar

79. Samant, S.S. and Pal, M. (2003). Diversity and conservation status of medicinal plants in Uttaranchal State. Indian Forester, 129 (9): 1090-1108

Google Scholar

80. Samant, S.S. and Joshi, H.C. (2004). Floristic diversity, community pattern and changes of vegetation in Nanda Devi National Park In: Biodiversity Monitoring Expedition, Nanda Devi 2003 (18 June to 8 July, 2003), Uttaranchal Forest Department Dehradun

Google Scholar

81. Samant, S.S., Joshi, H.C., Arya, S.C. and Pant, S. (2004a). Diversity, distribution and conservation of Pteridophytes in Nanda Devi Biosphere Reserve, west Himalaya, India. Indian Fern Journal, 22: 000-000

Google Scholar

82. Samant, S.S., Pant, S., Joshi, H.C. and Arya, S.C. (2004b). Diversity, distribution and conservation of vascular plants in Nanda Devi Biosphere Reserve of West Himalaya. Key Note Lecture delivered in the 20th National Symposium of Indian Society of Life Sciences on “Bioresources, Environment and Society” at Department of Botany, University of Jammu, Jammu, From 16-18 October, 2004

83. Saxena, A.K. and Singh, J.S. (1982). A phytosociological analysis of woody species in forest communities of a part of Kumaun Himalaya. Vegetatio, 50: 3-22.  https://doi.org/10.1007/BF00120674

Google Scholar

84. Semwal, J.K., Gaur, R.D. and Purohit, A.N. (1981). Floristic pattern of an alpine zone Tungnath in Central Himalaya. Acta Botanica, 9: 110-114

85. Singh, J.S. and Singh, S.P. (1987). Forest vegetation of the Himalaya. Botanical Review, 52-53.  https://doi.org/10.1007/BF02858183

Google Scholar

86. Singh, J.S., Singh, S.P., Saxena, A.K. and Rawat, Y.S. (1981). The Silent Valley forest ecosystem and possible impacts of proposed hydroelectric project: reports on the Silent Valley Study. Ecology Research Circle, Kumaun University, Nainital

Google Scholar

87. Stevans, G.C. (1992). The elevational gradient in altitudinal range: an extension of Rapoport’s latitudinal rule to altitude. American Naturalists, 140: 893-911.  https://doi.org/10.1086/285447

Google Scholar

88. Strasberg, D. (1996). Diversity, size composition and spatial aggregation among trees on a one hactare rain forest plot at La Reunion.  Biodiversity and Conservation, 5: 825-840.  https://doi.org/10.1007/BF00054737

Google Scholar

89. Sundariyal, R.C., Joshi, A.P. and Dhasmana, R. (1987). Phenology of high altitude plants at Tungnath in Central Himalaya. Tropical Ecology, 28: 289-299

Google Scholar

90. Sunderpadian, S.M. and Swamy, P.S. (1997). Plant biodiversity at low elevation evergreen and moist deciduous forests at Kodayar (W. Ghats, India). International Journal of Ecology Environment and Science, 23: 363-379

Google Scholar

91. Sunderpadian, S.M. and Swamy, P.S. (2000). Forest ecosystem structure and composition along an altitudinal gradient in the Western Ghats, South India. Journal of Tropical Forest Science, 12: 104-123

Google Scholar

92. Swamy, P.S., Sunerpadian, S.M., Chandrashekar, P., and Chandrashekaran, S. (2000). Plant species diversity and tree population structure of a humid tropical in Tamil Nadu, India. Biodiversity and Conservation, 9: 1643-1669.  https://doi.org/10.1023/A:1026511812878

Google Scholar

93. Terborg, J. (1971). Distribution on environmental gradients: theory and a preliminary interpretation of distributional patterns in the avifauna of the Cordillera Vileabamba, Peru. Ecology 52: 23-40 https://doi.org/10.2307/1934735

Google Scholar

94. Timmins, S.M. and Williams, P.A. (1991) .Weed numbers in New Zealand’s forest and scrub reserves. Journal of New Zealand Ecology, 15: 153-162

Google Scholar

95. Usher, M.B. (1988). Biological invasions of nature reserves: a search for generalization. Biological Conservation, 44: 119-135.  https://doi.org/10.1016/0006-3207(88)90007-9

Google Scholar

96. Valdiya, K.S. (1979). An outline of the structural setup of the Kumaun Himalaya. Journal of Geological Society of India, 20: 143-157

Google Scholar

97. Vazuez, J.A. and Givinish, T.J. (1998). Altitudinal gradient in the tropical forest composition, structure and diversity in the Sierra de Manantlan. Journal of Ecology, 86: 999-1020.  https://doi.org/10.1046/j.1365-2745.1998.00325.x

Google Scholar

98. Wadia, D.N. (1931). The syntaxis of the north west Himalaya, its rocks, tectonics and orogeny. Quarterly Journal of Geology and Mineral Society of India, 65: 189-200

Google Scholar

99. Whittaker, R.H. and Niering, W.A. (1965). Vegetation of the Santa Catalina Mountains, Arizona. V. Biomass, production, and diversity along the elevation gradient. Ecology, 56:771-790.  https://doi.org/10.2307/1936291

Google Scholar

100. Whittaker, R.H. (1975). Community and ecosystems. 2nd ed., Mac-Millan Publishing Company, New York

101. Whittaker, R.H. and Niering, W.A. (1975). Vegetation of the Santa Crolina Mountains, Arizona V. Biomass Production and Diversity along the altitudinal gradient. Ecology, 56: 771-790.  https://doi.org/10.2307/1936291

Google Scholar

102. Whittaker, R.H. and Woodwell, G.M. (1969). Structure, production and diversity of the oak pine forest at Brookhaven, New York. Journal of Ecology, 57:155-174.  https://doi.org/10.2307/2258214

Google Scholar

103. Wolda, H. (1987). Altitude, habitat and tropical insect diversity. Journal of Botanical Society of Linnean, 30: 313-323.  https://doi.org/10.1111/j.1095-8312.1987.tb00305.x

Google Scholar

104. Yoda, K. (1967). A preliminary survey of the forest vegetation of eastern Nepal II. General description, structure and floristic composition of sample plots chosen from different vegetation zones. J. College Arts and Science, Chiba University National Science Series, 5: 99-170

Google Scholar

105. Yugi, M. (1979). Geology and metamorphism of the Nanda Devi region, Kumaun higher Himalaya, India. Himalayan Geology, 9(1): 3-17

Google Scholar