Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

We are all now connected by the Internet, like neurons in a giant brain.

 

Stephen Hawking

 

Researchers confirm that neonicotinoid insecticides impair bee's brains and harm colonies

RATE THIS! +38
Posted in Science on 6th Feb, 2015 03:49 PM by AlexMuller

Research at the Universities of St Andrews and Dundee has confirmed that levels of neonicotinoid insecticides accepted to exist in agriculture cause both impairment of bumblebees' brain cells and subsequent poor performance by bee colonies.

 

The contribution of the neonicotinoids to the global decline of insect pollinators is controversial and contested by many in the agriculture industry. However, the new research, published in the Journal of the Federation of American Societies for Experimental Biology, demonstrates for the first time that the low levels found in the nectar and pollen of plants is sufficient to deliver neuroactive levels to their site of action, the bee brain.
 
Dr Chris Connolly, a Reader in the Division of Neuroscience at Dundee's School of Medicine, has spent several years examining the risk from neonicotinoids and other commonly used classes of pesticides on both honeybees and bumblebees.
 
He and his colleagues at Dundee carried out combined laboratory and field studies and the data was analysed by Professor Steve Buckland at St Andrews. The results showed very low levels of neonicotinoids caused bumblebee colonies to have an estimated 55 per cent reduction in live bee numbers, a 71 per cent reduction in healthy brood cells, and a 57 per cent reduction in the total bee mass of a nest.
 
Dr Connolly says the paper represents the best scientific evidence to date connecting neonicotinoid consumption to poor performance of bees and that the effects of the pesticide must be considered by policy makers seeking to protect the abundance and diversity of insect pollinators.

Tags: beesbiologypesticideinsecticidepollinationagriculture

Read original article » Back to category

Comments

Author: Guest
Posted: 2015-02-07
+1
The debate about causes that threaten bees worldwide has been a difficult one - evidence has been pointing in different directions. Now we have clear data that pesticides are one of important causes and some action has to follow Reply


 

Recent headlines

  • Posted in Software on 2017-06-24 14:42:11
    Google to make quantum computer faster than classical.....read more
    Posted in Business on 2017-06-24 14:31:46
    SpaceX successfully launches and lands a used rocket for.....read more
    Posted in Software on 2017-06-24 14:15:18
    Yale and Oxford researchers say 50% chance AI will.....read more
    Posted in Software on 2017-06-23 12:32:59
    Google’s AI subsidiary DeepMind is partnering with.....read more
    Posted in Science on 2017-06-23 12:40:53
    Likely Mars sized planet at two times the distance to.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Nanoparticle vaccine shows potential as immunotherapy to fight.....read more
    Posted by AlexMuller
    Obesity is top cause of preventable life-years lost, study shows..read more
    Posted by AlexMuller
    Light can be utilized to control gene function..read more
    Posted by AlexMuller
    Brain stimulation restores memory during lapses, research shows..read more
    Posted by AlexMuller
    Wax worm caterpillar will eat plastic shopping bags: New.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me