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Floral and Bird Biodiversity of Dingaputa Haor and Its Surrounding Area of Mohangong Upazila, Netrakona District

Md. Jahirul Islam
Department of Environmental Science, Bangladesh Agricultural University, Mymensingh

Md. Anisuzzaman
Department of Environmental Science, Bangladesh Agricultural University, Mymensingh

Md. Jahangir Sarker
Department of Fisheries and Marine Science, Noakhali Science and Technology University, Sonapur, Noakhali

Maruf Hossain Minar
Department of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh

Md. Zihad Majumdar
Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh

Tawfiqul Islam
Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

The study was undertaken at Dingaputa haor and its surrounding area with a view to investigate the biodiversity of plants, and birds. The taxonomic status of the species of the area was categorized into threatened, endangered, common, few and very few based on their richness, uses and conservational viewpoints. The total number of plant observed 152 species under 79 families and 37 species of birds under 24 families. The present total species diversity index (H) represent that plants belonged that 71 (1.27) species, 41families.Cultivated crops have 24 species (2.40) and 11 families. The weeds had 57 species (1.51) and 23 families. The birds had 37 species (1.89) and 24 families, other aquatic faunal species 17 (2.66) and 16 families. In the biodiversity of Dingaputa haor was decreasing day by day. Agricultural crops and other aquatic fauna were listed maximum but plants, and weeds diversity index were minimum.

Keywords: Biodiversity, Dingaputa haor, Biodiversity index, Plants of haor

Location: Mohonganj upazila, Netrakona District in the Dhaka division of Bangladesh

Start Date: 00-07-2010

End Date: 00-10-2010

Program Area: Conservation and Biodiversity

Non-commodity: Management

Objectives:

The study was undertaken to identify present status of plant biodiversity and the causes of loss of wetland biodiversity of this Dingaputa hoar.

Methodology:

Geographical Location of the Study Area - The study area is located within the Mohonganj upazila at approximately between the latitudes of 24°52′00″N to 24.8667°N and between the longitudes of 90°58′00″E to 90.9667°E in Netrakona District in the Dhaka division of Bangladesh. It has 24011 units of house hold and total area 243.2 km². It is located 30 km east from Netrakona district. The study was conducted for a period of July to October, 2010. Biological Environment Condition of the Study Area - The Biological environment covers a vast area of flora and faunal species cultivated and observed in the study locality. Cereals, pulses crops, wood and fruit trees mainly consist of the plant community where small indigenous fishes along with cultivated species of fish and some common waterfowls and birds documented the fanual scenario. Some wild mammals, common reptiles and amphibians also found on the study area. Source of Data Collection - uring collection of data both primary and secondary sources are considered. Primary data were collected from fishermen and fermer by the researcher himself. The secondary information was collected from fisheries offices, Agriculture offices,at Mohonganj upazila. The researcher collected information detailed on flora and fauna having diversity by spot visit. Several visits are made to the study area to collect accurate information. Floral and Faunal Diversity Analysis - After completion of the study in the selected area of Dingaputa haor, the researcher discussed the floral and faunal information into the distinct systemic category to easily find out the status of the exist and extinct species of the area. The information of areas floral and fauna are arranged and tabulated in the scientific way with a view to clarifying the objectives of the study and concluded the biodiversity status of the selected area. Species Diversity Index - Species diversity differs from species richness in that it takes into account both the numbers of species present and the dominance or evenness of species in relation to one another. As a measure of species diversity, we will calculate the Shannon index, H. Interestingly Shannon, a physicist, developed the index as a formula for measuring the entropy of matter in the universe. It turns out that the mathematical relationships hold true whether one is dealing with molecules in solution or species in an ecological community. H= - ∑ Pi In Pi, Where Pi is the proportional abundance of ith species such that Pi = n/N, n is the number of the individuals in ith species and N is the total number of the individuals in ith species and N is the total number of the individuals of all species in the community

Source of Information: World Journal of Agricultural Research, 2013, Vol. 1, No. 4, 70-76

Article Link (Online Journal): Available online at http://pubs.sciepub.com/wjar/1/4/5 © Science and Education Publishing; DOI:10.12691/wjar-1-4-5

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The wetland biodiversity of Bangladesh are being drastically by the impacts of the burgeoning human population. Wetlands are being continuously lost or degraded primarily because of various recent developments reflecting a lack of community awareness of wetland functions and values.

Knowledge Management: Journal