NONE 20260609081842847 wseas/wseas content-registration-form+ja@crossref.org content-registration-form International Journal of Environmental Engineering and Development 2945-1159 Asha Gupta Department of Life Sciences Centre of Advanced Study in Life Sciences Manipur University, Canchipur-795003, INDIA Easter Arila Department of Life Sciences Centre of Advanced Study in Life Sciences Manipur University, Canchipur-795003, INDIA Nahakpam Santosh Singh Department of Life Sciences Centre of Advanced Study in Life Sciences Manipur University, Canchipur-795003, INDIA Plant population structure and regeneration status are crucial for understanding forest ecosystem dynamics. Assessment of population structure and regeneration status is essential for effective planning, conservation, and sustainable management of forest resources. Tree seedling recruitment, growth, and survival are influenced by microclimatic, biotic and edaphic factors. Elevation is a complex combination of climatic and edaphic variables contributing to altitudinal variation. The present study investigates into the patterns of recruitment and regeneration in a montane forest from Eastern Himalaya along altitudinal gradient. It is concluded that population dynamics are influenced by a history of disturbance regimes, including small-scale disturbances from gap creation or temperature change. 06 09 2026 06 09 2026 17 3 https://creativecommons.org/licenses/by/4.0/deed.en_US 10.37394/232033.2026.4.3 https://wseas.com/journals/ijeed/2026/a06ijeed-003(2026).pdf Malik, Z. A., & Bhatt, A.( 2016) .Regeneration status of tree species and survival of their seedlings in Kedarnath Wildlife Sanctuary and its adjoining areas in Western Himalaya, India.Tropical Ecology, 57 ,677–690. Aliyi, K., Hundera ,K., & Dalle, G.(2015). 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