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Swapna S. Khadanga,Ashaq Ahmad Dar,Neha Jaiswal,Prasad K. Dash,Shanmuganathan Jayakumar 국립중앙과학관 2023 Journal of Asia-Pacific Biodiversity Vol.16 No.3
Tropical mountain forests in Eastern Ghats provide a unique opportunity to relate environmental driversto plant community structure along elevation gradient. We aimed to investigate the tree diversity,composition and stand structure along elevation gradient and drivers facilitating species distributionacross Mahendragiri Hill Forest (MHF) in Eastern Ghats of Odisha, India. Altogether 120 plots of 0.05 hawere established and stems 10 cm diameter at breast height were measured. We compared speciescomposition and stand structure among elevation zones. Ordination analysis was used to quantify howcommunity structure was related to topographic, climatic and onsite conditions. In total 189 speciesrepresenting 131 genera and 51 families were recorded ranging from 64 (MHF6) to 106 species (MHF4). Fabaceae representing 23 species, followed by Phyllanthaceae was dominant families. Maximum treedensity and basal area were enumerated in high elevation MHF6 and least disturbed MHF5, respectively. Canonical Correspondence Analysis (CCA) interpreted 58.59% of variation and depicted the role ofelevation followed by disturbance and precipitation in species distribution patterns. Variance parti tioning analysis shows that topography and disturbance strongly partitioned the dissemination of treespecies. Variations in species diversity reflects a direct coupling or interaction of several factors together,making it a complex phenomenon.