*N-Number of individuals, F-Frequency, A-Abundence, D-Density, RF-Relative Frequency, RA- Relative Abundence, RD- Relative Density, BA- Basal Area, IVI- Importance Value Index
Fig. 1. Figure showing plant species against IVI value in Hosthota area
The number of woody plant families in the samples area of the study site was 32 (Table 2). Among them, Lauraceae was well represented with 8 species followed by Clusiaceae , Ebanaceae and Myristicaceae having 5 species each and Anacardiaceae, Euphorbiaceae, Moraceae and Sapotaceae having represented by 4 species each. At the generic level, the most represented was Lauraceae (n=7), Euphorbiaceae (n=4) and Sapotaceae (n=4). Based on density, the family Myristicaceae represented highest number of individuals (n= 254) followed by Ebanaceae (n=236), Dipterocarpaceae (n=158) and Clusiaceae (n=157). The maximum basal area was recorded for family Ebanaceae (17.48) followed by Myrtaceae (11.59) and Anacardiaceae (11.44). Of this, Myristicaceae was the densest family (16.89%) followed by Ebanaceae (15.7%), Dipterocarpaceae (10.51%) and Clusiaceae (10.44%). A total of 18 families were represented by single species at the study site.
Table 2. Showing details of family, species richness, generic richness, basal area and family importance value.
A total of 1383 woody plant belonging to 73 species, 54 genera spread over 31 families were recorded from 128 circular plots (10 m radius) in the study site of Chiksuli of Group 2 range (Table 3 and 4). The woody plant community paramaters are as computed in the Table 3. Among them Olea dioca was represented by maximum number of individuals (n=128) followed by Knema attenuata (n=100), Aglaia roxburghiana (n=92) and Garcenia talbotti (n=89). The highest Important Value Index (IVI) was recorded for Olea dioca (17.89) followed by Knema attenuata (15.61), Aglaia roxburghiana (14.41) and Garcenia talbotti (13.00) as shown in Table 3 and Fig. 2.
Table 3. Table showing details of species, family, frequency, abundance, basal area and importance value index of species present in Chiksuli.