Phytosociological analysis of Mangroves at Kannur District, Kerala

Investigation on floristic diversity of mangroves of Kannur indicated that the study area constituted 12 species under nine genera belonging to seven families. Rhizophoraceae represented maximum genera of four species. Phytosociological analysis revealed that Acanth...

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Détails bibliographiques
Auteur principal: Vidyasagaran. K; Ranjan. M.V; Maneeshkumar. M and Praseeda. T.P 4
Format: Printed Book
Publié: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCES 2011
Sujets:
DIVERSITY INDEX
Accès en ligne:http://10.26.1.76/ks/006159.pdf
LEADER 02061nam a22001457a 4500
100 |a Vidyasagaran. K; Ranjan. M.V; Maneeshkumar. M and Praseeda. T.P 4   |9 37727 
245 |a Phytosociological analysis of Mangroves at Kannur District, Kerala  
260 |b INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCES   |c 2011 
300 |b  Volume 2, No 2, 2011  
520 |a Investigation on floristic diversity of mangroves of Kannur indicated that the study area constituted 12 species under nine genera belonging to seven families. Rhizophoraceae represented maximum genera of four species. Phytosociological analysis revealed that Acanthus illicifolius registered highest density and relative density followed by Avicennia officinalis. Whereas relative frequency was highest recorded for Avicennia officinalsi followed by Acanthus illicifolius. Maximum relative basal area was represented by Aviennia marina followed by Avicennia officinalis. Structural analysis of the mangroves of Kannur unveiled the domination of Avicennia officinalis which, registered highest Importance value index (IVI) and relative importance value index (RIVI) among the 12 mangroves species distributed all over. Though this species constituted relatively lesser density and frequency, it registered highest IVI and RIVI due to its relatively higher basal area. The lowest IVI and RIVI was registered for Luminitzera racemosa. Diversity indices for six mangrove sites and for whole Kannur district indicated that mangroves at Pappinisseri constituted highest Shannon Weiner index and equitability (H’ 9.706, 3.75). Highest Simpson's index was reported for Madakkara (0.847) and Kavayi registered lowest value for Shannon Weiner index and H max (H’ 5.72, 2.585). 
650 |a DIVERSITY INDEX  |9 37728 
856 |u http://10.26.1.76/ks/006159.pdf 
942 |c KS 
999 |c 87903  |d 87903 
952 |0 0  |1 0  |4 0  |7 0  |9 80215  |a MGUL  |b MGUL  |d 2016-07-29  |l 0  |r 2016-07-29  |w 2016-07-29  |y KS 

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