Tiger Conservation: Reality, recognition and rights

September 11, 2011

Dr. Mohammad Ali
Tigers are maverick animals. They are supposed to live long in this world. Instead, they are disappearing rapidly. No doubt celebrating ‘tiger day’ will raise awareness to safeguard this majestic animal; however, we hope the affiliated institutions will continue creating a congenial environment for safety and sustainability of tiger population.
Commonly such safety and protection are provided through declaring protected areas (PAs) like game reserves, wildlife sanctuary, and even national parks. There are overlapping forest reserves and tiger reserves in the Sunderbans Read more

Flood: Some positive effects

August 13, 2011

Mohiuddin Zakaria
Flood is overflow of huge amount of water on the normally dry land. The EU flood directive defines flood as ‘a temporary covering by water of land not normally covered by water’. In broader sense, flood can be classified in two types as: natural flood and catastrophic flood. Natural flood is the flood that is caused naturally by the overflow of huge volume of water from rivers, lakes, oceans, or by heavy rains, etc. On the other hand catastrophic flood is the flood that is caused by some significant and unexpected events, for example dam breaching, Read more

Birdwings enriching forest ecosystem

August 13, 2011

Dr. M A Bashar
Ecosystem itself is the phenomenon of interaction between biotic and abiotic factors in an area. This interaction means both of the factors in an area of the biosphere are equally “interacted” to form and run the system. But apparently plants are the primary phase as producers and successive phases are completed by animals as the consumers. So, plants in the system are treated collectively as the first trophic level and the animals as the successive trophic levels. These animals again provide some backward support to the plants for their multiplication and sustenance to form the final shape Read more

Salvaging Dhaka

July 24, 2011

Md. Mahbubul Huq for The Daily Star
The engine behind a city is, apparently, its mayor. He is the chief of local government administration. Local government administration is responsible for providing services such as: fire safety, police protection, any emergency services, public school, water and sewerage, city planning, maintaining local environmental health, garbage collection, public transportation. Other services provided include: recording births, deaths and marriages; managing public burial sites, public parks, open spaces and other public land.
Local government functions Read more

Evaluating services of Sundarbans

July 4, 2011

Muhammad Selim Hossain and Mohammed Abdul Baten for The Daily Star
Forest is a bounteous gift of nature that provides the basis of life and livelihood for humans. According to human history, hunting and gathering, the first and foremost livelihood of homo sapiens, was forest based. Interestingly, mangrove is the most diverse forest and is maximum service provider of all the forest types. Today, it is man whose relentless activities are, however, at the root of eroding this invaluable biological capital of nature.
Forest management has also seen a long chronological development Read more

Growth at the cost of environment?

July 4, 2011

Industrial Pollution
Growth at the cost of environment?
Md Koushik Ahmed for The Daily Star
The “primitive accumulation” nature of developed countries to use all natural resources as inputs into a human devised system in the never ending quest for economic growth has led us to ask “what the future holds for us”. This growth oriented development strategy has resulted in industrial pollution all over the world. The rise of synthetic chemicals, most of which did not exist 75 years ago and their exposures which came from some of the 11,700 products made by 164 manufactures that contain these chemicals, have alarmingly increased Read more

‘Shocking’ state of oceans threatens mass extinction

June 22, 2011

Overfishing and pollution putting fish, sharks and whales in extreme danger – with extinction ‘inevitable’, study finds.
Fish, sharks, whales and other marine species are in imminent danger of an “unprecedented” and catastrophic extinction event at the hands of humankind, and are disappearing at a far faster rate than anyone had predicted, a study of the world’s oceans has found.
Mass extinction of species will be “inevitable” if current trends continue, researchers said.
Overfishing, pollution, run-off of fertilisers from farming and the acidification of the seas caused by increasing carbon dioxide emissions were combining to put marine creatures in Read more

Honey collection and biodiversity loss in mangrove ecosystem

June 17, 2011

Dr. M.A. Bashar for The Independent
In Sundarbans ecosystem, honey and wax production is a major seasonal activity employing some 2000 honey collectors known as ‘mowallis’ and producing about 200 tonnes of honey and about 50 tonnes of bee wax which constitutes about 50 per cent of the total production in Bangladesh. So far information is concerned, it is to be noted that no country in the world has got even 50 percent of its national honey production coming from natural system. Apiculture or colonisation of bees made by men provides the honey production in other countries of world. But only Bangladesh has Read more

Forest: The one and only address of inhabitable world

June 10, 2011

Dr. Md. Mizanur Rahman for The Daily Star
Forest ecosystem provides benefits that support the livelihoods of countless human beings. Forests provide a number of components to the broad range of ecological services such as, regulation of rainfall and hydrological system; maintenance of soil quality, control of soil erosion, modulating climate; and being the habitat of biodiversity. Forests form the basis of different industries e.g. timber, wood processing, paper, rubber, paints, resin, gum, honey, food, medicines, building material, fodder, game, tourism, etc. Forests are home to millions of people all around the world and Read more

Impact on environment and health

April 24, 2011

Shipbreaking in South Asia
Impact on environment and health
Md. Abu Sayed
Shipbreaking, referred to as ship recycling, is a type of ship disposal involving the dismantling of an obsolete vessel’s structure for scrapping or disposal. It includes a wide range of activities, from removing all gears and equipment to cutting down the ship’s infrastructure.
Every year, about 600 end-of-life ships containing large amounts of toxic and hazardous substances and materials, and fuels, are sent to the beaches of South Asia, where they are dismantled. According to recent figures, 96 per cent of world’s GT ships were dismantled in Read more

Climate change and neglected tropical diseases

April 24, 2011

Khalid Md. Bahauddin
Recent investigations attribute more than 150,000 deaths per year and a global disease burden to climate change. An area that has received particular attention is the potential impact of global warming on shifts in the spatio-temporal distribution of disease vectors, and hence the frequency and transmission dynamics of vector-borne diseases. Vectors, pathogens (parasites), and hosts survive and reproduce within certain optimal climatic conditions. Changes in climate will alter the transmission of vector-borne diseases in different ways, such as changing the Read more

Climatic hazards: Vulnerability and adaptation

April 9, 2011

Dr Moazzem Hossain
It is now widely recognised that the coastal regions of the world would suffer severely both in economic and social fronts from the direct impact of global warming and rising sea level. It has been noticed that in recent years sea-level rise, frequent storms and cyclones, and riverbank erosion have taken a serious turn in the coastal regions of the Bay of Bengal. These necessitate checking up vulnerability of the coastal people. In particular, investigation on the livelihood in terms of socio-economic vulnerability (risk) of the coastal population is of paramount importance. Two Read more

‘Climate change reshapes tropical forests’

February 21, 2011

Future climate change could change the profile of tropical forests, with possible consequences for carbon storage and biodiversity, a study says.
It suggests that if current trends continued, the drier conditions would favour deciduous, canopy species at the expense of other trees.
US researchers based their findings on the changes they recorded in a Costa Rican forest over a 20-year period.
The team’s paper has been published in the journal Global Change Biology.
“It is important because – depending on Read more

Managing biodiversity to slow down climate change

February 11, 2011

Adaptation is the habitual process of adjustment to a new or changing environment. These changes of environment could be negative or positive to the survivals in an ecosystem. Adaptive capability is the ability of a system to adjust to climate change to moderate potential damages, to take advantage of opportunities, or to cope with consequences. The value of biodiversity is poorly researched. Biodiversity has an urgent natural has value, but also a direct and indirect human benefit value. It is evident that climate change and biodiversity loss are interconnected. In the fact of inter-linkage, it Read more

Water crisis to rice crisis in coming decades?

January 22, 2011

Dr. Aminul Islam Akanda
Bangladesh is blessed with suitable soil and climate for growing rice in all three crop seasons in a year. Rice grown during summer is locally known as Aus, during monsoon as Aman and during winter as Boro. The Boro is really the improved rice variety that is cultivated in almost all rice fields during winter. Winter rice is typically called Boro but is now cultivated in other seasons too. Gradual expansion of improved rice farming contributed much to total rice production increasing more than three times over the last three decades. The winter rice farming was a demand-led Read more

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