Abstract
Vegetation diversity and community composition of three prominent Tiger Reserves of Central India were compared with human intervened Territorial Forests of the region to determine the impact of protection on reserve forests. Tiger Reserves trees showed higher density and frequency belonging to the greater number of families. The basal area occupied by the trees was also higher in Tiger Reserves than Territorial Forests, with the maximum in Pench, followed by Satpura and Panna. Fabaceae was the most dominant family for tree species and Tectona grandis the most abundant tree, but Lamiaceae was the dominant family concerning the number of trees per family. Shannon diversity depicted a decline in Territorial Forests as against the Tiger Reserves. Ground floral species were more in Protected Areas, and Poaceae was the most dominant family. Trees of Pench and Panna were the most similar, while the similarity between Tiger Reserves and Territorial Forests ranged between 29-44%. The number of trees per hectare in different diameter classes exhibited a reverse J-shaped curve for protected and unprotected forests having a maximum and more than 30 per cent trees in 10-20cm diameter class.
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