Altitudinal variation in plant species richness and diversity at Thandiani sub forests division, Abbottabad, Pakistan
Adhikari BS. 1991. High altitude forest composition diversity and profile structure in a part of Kaumaun Himalaya. Tropical Ecology journal 32(1), 86-97.
Al-Farraj MM, Al-.Rarhan A, Al-Yemeni A. 1997. Ecological studies on Rawdhat system in Saudi Arabia 1- Rawdhat khorim. Pakistan Journal of Botany 29(1), 75-88.
Colinvaux P. 1993. Ecology. John Wiley and Sons Inc. New York 648-684.
Cardillo M, Orme CDL, Owens IPF. 2005. Testing for latitudinal bias in diversification rates: An example using New World birds. Ecology 86, 2278-2287.
Currie DJ, Francis AP. 2004. Regional versus climate effect on taxon richness in angiosperms; reply to Qian and Ricklefs. American Naturalist 163, 780-785.
Franklen J, Merlin M. 1992. Species environ-mental patterns of forest vegetation on the uplifted reef limestone of Atiu, Mongaia, Mauke and Mitiaro, Cookisland, West central Pacific Ocean. Journal of Vegetation Science 3(1), 3-14.
Givnish TJ. 1999. On the causes of gradients in tropical tree dversity. Journal of Ecology 87, 193-210.
Green DM, Kaufman JB. 1995. Succession and livestock grazing in a Northeastern Oregon riparian Ecosystem. Journal of Range Management 48(4), 307-313.
Habib T, Malik ZH, Hussain MA, Khan MQ. 2011. Plant species diversity along the altitudinal gradient at Garhi Dopatta Hills, Muzaffarabad., Journal of Medicinal Plants Research 5(20), pp. 5194.5196.
Hill MO. 1973. Dversity and evenness: a unifying notation and its consequences. Ecology 54, 427–432.
Hurka H, Heinrich A. 2004. Species richness and composition during Sylvigenesis in a tropical dry forest in North Western Costa Rica. Tropical Ecology 45, 43-57.
Hussain M, Ali A. 2006. Spatial and Seasonal variation in the species composition of herbaceous vegetation indigenous to soone valley in the salt range of Pakistan. Pakistan Journal of Agricultural Science 43, 43-49.
Khan D, Alam MM, Feheemuddin M. 1999. Structure Composition and above ground Standing phytomass of some grass dominated communities of Karachi: Summer aspects. Hamdard Medicus 42, 19-52.
Khan SM, Harper DM, Page S, Ahmad H. 2011. Species and community diversity of vascular flora along environmental gradient in Naran Valley: a multivariate approach through indicator species analysis. Pakistan Journal Botany 43, 2337–2346.
Khan SM. 2012a. Plant communities and vegetation ecosystem services in the Naran Valley, Western Himalaya, PhD Thesis, University of Leicester. University of Leicester.
Khan SM, Page S, Ahmad H, Harper D. 2012b. Identifying plant species and communities across environmental gradients in the Western Himalayas: method development and conservation use. Ecolgical Informatics. http://dx.doi.org/10.1016/j.ecoinf.2012.11.010.
Khan SM, Page S, Ahmad H, Shaheen H, Harper DM. 2012c. Vegetation dynamics in the Western Himalayas, diversity indices and climate change. J. Sci. Technol. Development 31 (3), 232–243.
Khan SM, Page S, Ahmad H, Ullah Z, Shaheen H, Ahmad M, Harper DM. 2013a. Phyto-climatic gradient of vegetation and habitat specificity in the high elevation Western Himalayas. Pakistan Journal Botany 45, 223–230.
Khan SM, Page S, Ahmad H, Harper DM. 2013b. Sustainable utilization and conservation of plant biodiversity in montane ecosystems; using the Western Himalayas as a case study. Annals of Botany 112, 479–501. http://dx.doi.org/10.1093/aob/mct125
Kharkwal G, Mehrotra P, Rawat YS, Pangetey YPS. 2005. Phtodiversity and growth form in relation to altitudinal gradient in the Central Himalaya (Kumaun) region of India. Current Science 89(5), 873-878.
Korner C. 1998. A re-assessment of high elevation treeline positions and their explanation. Oecologia 115, 445–459.
Lomolino MV. 2001. Elevation gradients of species-density: historical and prospective views. Global Ecology and Biogeography 10, 3–13.
Malik H, Malik NZ, Bashir S, Gorsi MS. 2001. Phytosociological studies on the vegetation of Dao Khan Hillls. Journal of Science &Technology 25, 35-41.
Margalef R. 1958. Informational theory in Ecology, Gen. Syst. 5: 36-71. McGrady-Steed, J., & Morin, P. J., Biodiversity, density compensation and the dynamics of populations and functional groups. Ecology 81, 361-373.
Mueller-Dombois D, Ellenberg H. 1974. Aims and Methods of Vegetation Ecology. John Wiley and Sons. Inc.
Naveh Z, Whittaker RH. 1980. Structural and floristic diversity of shrublands and woodlands in Northern Israel and other Mediterranean areas. Plant Ecology 41(3), 171190.
Parthasarthy N, Karthikeyan R. 1997. Biodiversity and population density of Woody species in a tropical evergreen forest in Coutallum Reserve Forests, Western Ghats, Ind.Trop. Ecology 38(2), 297-306.
Peet RK. 1974. The measurement of species diversity. Annual Review of Ecology and Systematics 5, 285–307.
Pichi-Sermolli RE. 1948. An index for establishing the degree of maturity in plant communities. Journal of Ecology 36, 85-90.
Planty-Tabacchi A, Tabacchi E, Naiman RJ, Defessasi C, Decamps H. 1995. Invisibility of species – rich communities in riparian Zones. Conservation Biology 10, 598-607.
Raizada S, Joshi P, Srivastiva MM. 1988. Composition and vegetational diversity in an alpine grassland in the Garhwal Himalaya. Tropical Ecology 39(1), 133-141.
Saxina AK, Panday TP, Singh JS. 1987. Altitudinal Variation in the Vegetation of Kuman Himalaya, Prespective in Environmental Botany 44-66.
Schuster B, Diekmann M. 2005. Species richness and environmental correlates in deciduous forests of Northwest Germany, Forest Ecology and Manage-ment 206-213.
Shannon CE, Wiener W. 1949. The Mathematical theory of Communication, University of Illinois Press Urgana 117.
Sheldon AL. 1969. Equitability indices: dependence on the species account. Ecology 50, 466-467.
Shoukat SS, Khan D. 1999. A Comparative study of the Statistical behavior of diversity and equitability indices with reference to desert vegetation. Pakistan Journal of Botany 11, 155-165.
Spehn EM, Joshi J, Schmid B, Diemer M, Korner C. 2000. Above ground resource use increases with plant species richness in experimental grassland ecosystem. Functional Ecology 14(3), 326-337.
Stirling G, Wilsey B. 2001. Empirical Relationships between Species Richness, Evenness, and Proportional Diversity. American Naturalist 158(3), 286–299.
Townsend CR, Harper JL, Begon M. 2000. Essen-tials of Ecology. Blackwell Sci, Inc. USA 2000, 354-387.
Vujnovic K, Wein RW, Dale MRT. 2002. Predicting plant species diversity in response to disturbance magnitude in grassland remnants of central Alberta. Canadian Journal of Botany 80(5), 504-511.
West NE. 1993. Biodiversity of Rangelands. Journal of Range Management 46, 2-13.
Willig MR, Kaufman DM, Stevens RD. 2003. Latitudinal gradients of biodiversity: pattern, process, scale, and synthesis. Annual Review of Ecology, Evolution, and Systematics 34, 273-309.
Willough MG. 1995. Species diversity and how it is affected by livestock grazing on Alberta’s Eastern Slopes. In West, N.E. (ed). Proc. Rangelands. In a sustainable biosphere, 5thInternational Congress 1995, Salt Lake City Utah pp. 610-611.