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Angiospermic Plant Diversity of Sandwip Island, Chittagong, Bangladesh

Noor Hassan Sajib
Department of Environment, Comilla District Office, Bangladesh.

S. B. Uddin
Department of Botany, University of Chittagong, Chittagong 4331, Bangladesh.

Mostafa Kamal Pasha
Department of Botany, University of Chittagong, Chittagong 4331, Bangladesh.

Abstract/ Executive Summary:

A survey of angiospermic plant diversity of Sandwip Island, Bangladesh has conducted from July 2008 to June 2012. This study recorded 457 species under 317 genera of 104 families including cultivated and planted. On the basis of habit distribution herbs are represented by 232, shrubs 71, trees 113 and climbers by 41 species. For each species scientific name, local name, family and habit character have been presented. Plant species of the area are at risk because of drought, salinity, anthropogenic activities and continuous bank erosion in the sea and shifting of land.

Keywords: Angiospermic, Plant diversity, Investigate Sandwip

Location: Chittagong University Herbarium (CTGUH)

Start Date: 00-07-2008

End Date: 00-06-2012

Program Area: Variety and Species

Commodity: Plant(s)

Objectives:

To investigate and document the angiospermic plants of the island.

Methodology:

The plant specimens were collected and identified through repeated field trips (16 in total) during July 2008 to June 2012. Study sites have been selected randomly from all the union area. The fresh materials were collected during different seasons and were brought to the Chittagong University herbarium (CTGUH). Photographs have been taken wherever necessary with a digital camera. The collected plant specimen were dried by using plant press with newspaper, preparation of Herbarium sheet by mounting and labeling of specimen were made following standard herbarium technique. Voucher specimens were preserved, examined and studied carefully in the taxonomic laboratory of Chittagong University Herbarium (CTGUH). Collected specimens were confirmed by comparing with herbarium specimens at Chittagong University Herbarium (CTGUH), Bangladesh Forest Research Institute herbarium (BFRIH) and Bangladesh National Herbarium (DACB), Dhaka. In some cases, standard literatures were consulted for identification purposes. On the other hand, world wide website, Catalogue of Life (2012) and The Plant List (2010) were considered for recent nomenclature of all specimens.

Source of Information: J. Asiat. Soc. Bangladesh, Sci. 41(2): 133-153, December 2015

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

In comparison to the earlier records of the island flora the present recorded angiosperm diversity from the Sandwip Island is much higher. About 49% angiospermic plant species recorded from the present study was not previously recorded from any of the islands of south east Bangladesh. Land loss, land recovery, high tide, low tide, excessive rainfall, drought, tidal waves all are daily affairs of the island. As a result, the angiospermic plant diversity of the area is at risk as well as in different successional stages. So conservation and sustainable use of plant is essential to save the biodiversity of the area.

Knowledge Management: Journal