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Climate change may adversely affect bee pollination


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Washington: A new study has indicated that decline in the population of bees and other flower-visiting animals may also lead to decline in pollination.

A recent University of Toronto study provides the first long-term evidence of a downward trend in pollination, while also pointing to climate change as a possible contributor.

“Bee numbers may have declined at our research site, but we suspect that a climate-driven mismatch between the times when flowers open and when bees emerge from hibernation is a more important factor,” said James Thomson, a scientist with U of T’s Department of Ecology and Evolutionary Biology.

Thomson’s 17-year examination of the wild lily in the Rocky Mountains of Colorado is one of the longest-term studies of pollination ever done.

It reveals a progressive decline in pollination over the years, with particularly noteworthy pollination deficits early in the season.

Three times each year, Thomson compared the fruiting rate of unmanipulated flowers to that of flowers that are supplementally pollinated by hand.

“Early in the year, when bumble bee queens are still hibernating, the fruiting rates are especially low,” he said.

“This is sobering because it suggests that pollination is vulnerable even in a relatively pristine environment that is free of pesticides and human disturbance but still subject to climate change.”

The study has been published in the latest issue of Philosophical Transactions of the Royal Society B: Biological Sciences. Theme of this issue is ‘The role of phenology in ecology and evolution’ and it is compiled and edited by Abraham J. Miller-Rushing and Jessica Forrest. The list of articles published in the current issue can be found at: http://rstb.royalsocietypublishing.org/content/current/

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 Other Articles by d-sector Team in
Environment Development  > Risks and Hazards > Global Warming and Climate Change

Number of environmental refugees on a high
Tuesday, February 22, 2011


'Climate change won’t force migration'
Friday, February 04, 2011


‘India could be warmer by 2 degrees by 2030’
Friday, November 19, 2010


Ramesh proposes regional cooperation to protect Himalayan glaciers
Tuesday, October 05, 2010

  1  2  3  4  5  6  7  8  9  10  11  12  13  14  15     
 
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Corruption Watch

The bad news is that corruption has not only sustained but has grown in size and stature in the country. With scams being a regular feature, seventy per cent respondents in a survey have rightfully opined that corruption has continued to increase in India. One in every two interviewed admit having paid a bribe for availing public services during last one year. Transparency International's latest survey reveals that the political parties top the chart for the most corrupt public institutions, followed by police force and legislatures. No wonder, India continues to make new records on the global corruption arena!

The shocking revelation is that the health and education sectors haven't remained untouched by this phenomenon. With 5th and 6th positions respectively for these sectors on the public perception chart on corruption, corruption has crept insidiously into these sectors of hope for the masses. With bureaucracy being fourth in the list of corrupt institutions in the country, corruption seems to have been non-formally institutionalized with little hope if public services would ever be effective in the country. With economic growth having literally institutionalized corruption, are we now expecting corrupt to be socially responsible - a different CSR.

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Not giving 'aid' to India is one thing but calling it 'rich' is quite another. If one in three of the world's malnourished children live in India, what does average daily income of $3 indicate? It perhaps means that there is a relative decline in poverty - people are 'less poor' than what they used to be in the past. But having crossed the World Bank arbitrary threshold of $2 a day does not absolve the 'developed' countries of their obligation to part with 0.7 per cent of their Gross National Income in development aid. Should this three-decade old figure not be revised?  

An interesting debate in UK's House of Commons delved on future of development assistance by the British Government. While prioritizing limited resources has been a concern, there has been no denying the fact that development aid must be guided towards tangible gains over a short period of time to start with. There are difficult choices for elected governments to make - should they invest in long-term primary education or in short-term university scholarships? Which of these will bring gains and trigger long-term transformation in the society. As politicians continue to be divided on the matter, poverty persists!!   

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