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J. Trop. Resour. Sustain. Sci. 5 (2017) 27-32

Mangrove Species Diversity and Structure at Kudat and Banggi Island, Sabah

Andy R. Mojiol*, Nurul Nadia Salleh

Forestry Complex, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia
*Email Address : [email protected]

Abstract : The aim of the study is to determine and record mangrove species biodiversity and structure at Kudat Mainland and Banggi Island. The sampling plots with size of 100 m x 10 m and four (4) replication was established to measure the species diversity by using Shannon-Wiener Index (H’), Shannon Evenness Index (E) and Simpson’s Diversity Index (D). From the results, a total of 10 mangrove species were recorded from both study areas. There are eight (8) species at Kudat Mainland and six (6) species at Banggi Island. The diversity indexes gives the value of H’, E and D with the similar value at both study areas. At Kudat Mainland, H’ = 1.51, E = 0.73 and D = 0.29 while at Banggi Island H’ = 1.50, E = 0.84 and D = 0.29. The results of these value shows the value of diversity at both areas is less diverse. The findings show the represented of mangrove species at both areas are may be affected by the water salinity, tidal inundations, soil conditions and propgules size. While the dependency of local people to mangrove’s wood and tree’s age will affected to the distribution of mangrove diameter. Meanwhile the current of winds and types of species represented in a plots assume affected the results of distributions of mangrove height. Represented of species less than 8 species assume affected the values of mangrove species diversity. As the conclusion, the mangrove species at Kudat district can be determine and recorded and the diversity of mangrove species at both areas is less diverse.

Keywords : Mangrove,Species diversity,Stand structure,Kudat,Banggi island,