Pesticide makes bees forget the scent for food, new study finds
By Damian Carrington | The Guardian
Neocotinoids block part of brain bees use for learning, leaving them unable to make link between floral scents and nectar
Widely used pesticides have been found in new research to block a part of the brain that bees use for learning, rendering some of them unable to perform the essential task of associating scents with food. Bees exposed to two kinds of pesticide were slower to learn or completely forgot links between floral scents and nectar.
These effects could make it harder for bees to forage among flowers for food, thereby threatening their survival and reducing the pollination of crops and wild plants.
The findings add to existing research that neonicotinoid pesticides are contributing to the decline in bee populations.
It has also been revealed that a separate government field study on the impact of the pesticides on bees was seriously compromised by contamination because the chemicals are so widespread in the environment.
The government put the field study at the heart of the UK’s resistance to a Europe-wide ban on the controversial pesticides earlier this month. The UK was one of nine out of 27 member states that opposed suspending some uses of the insecticides across the EU, after environment secretary Owen Paterson said, "I have asked the EC to wait for the results of our field trials, rather than rushing to a decision". On Wednesday, his department said more field research was needed.
The new findings on the effect of pesticides on bee brains showed that within 20 minutes of exposure to neonicotinoids the neurons in the major learning centre of the brain stopped firing. Christopher Connolly at the University of Dundee, who led the peer-reviewed work published in the online journal Nature Communications, said it was the first to show the pesticides had a direct impact on pollinator brain physiology.
Read the full article at: guardian.co.uk
EU Prepares to Ban Three Pesticides Harmful to Bees
Worker bees switch jobs via their epigenomes
Latest News from our Front Page
Vikings Were Pioneers of Craft and International Trade
The connections between technology, urban trading, and international economics which have come to define modern living are nothing new. Back in the first millennium AD, the Vikings were expert at exploring these very issues.
While the Vikings are "gone" their legacy is remembered, such as at the annual Jorvik Viking Festival in York. The Norsemen's military prowess and exploration are more ...
Just Based on DNA, Scientists Can Construct an Image of Your Face
Putting pencil to paper has been the tried-and-true method to illustrate the faces of wanted criminals, but new technology is changing this traditional approach. DNA, rather than an artist’s skill, is an emerging tool to recreate the face behind a crime.
The new forensic technique is called DNA phenotyping. It relies on DNA, found for instance in a drop of blood, ...
FCC Votes In Favor Of Obama's Net Neutrality - Has The Slippery Slope To Web Censorship Begun?
"An open Internet is essential to the American economy, and increasingly to our very way of life," according to President Obama and it appears his perspective on the heavy hand of government regulation inserting itself into the last bastion of freedom and dynamism in the US economy, is how best to achieve "openness." Having pressured FCC's Tom Wheeler, the vote ...
The Endgame: White Genocide
Made by youtube.com/ThisisEuropa
“There is no place in modern Europe for ethnically pure states. That’s a 19th century idea and we are trying to transition into the 21st century, and we are going to do it with multi-ethnic states.”
– Wesley Clark, U.S. general, ex-NATO Supreme Commander, talking about the NATO bombing of Serbia, 1999.
What is White Genocide?
▪ Moving millions of ...
Former German Lawyer Sylvia Stolz has been jailed again
Sylvia Stolz, the former defence attorney for Ernst Zundel has been convicted today in a Munich court, once again under the tyrannical BRD laws concerning so-called “holocaust denial” and thereby “inciting racial hatred”. She was sentenced to 20 months in prison with no possibility of parole.
The case stems from her presentation at the AZK in Switzerland in 2012 where ...
|More News » |