Navigation Links
Pesticide combination affects bees' ability to learn
Date:3/28/2013

Two new studies have highlighted a negative impact on bees' ability to learn following exposure to a combination of pesticides commonly used in agriculture. The researchers found that the pesticides, used in the research at levels shown to occur in the wild, could interfere with the learning circuits in the bee's brain. They also found that bees exposed to combined pesticides were slower to learn or completely forgot important associations between floral scent and food rewards.

In the study published today (27th March 2013) in Nature Communications, the University of Dundee's Dr Christopher Connolly and his team investigated the impact on bees' brains of two common pesticides: pesticides used on crops called neonicotinoid pesticides, and another type of pesticide, coumaphos, that is used in honeybee hives to kill the Varroa mite, a parasitic mite that attacks the honey bee.

The intact bees' brains were exposed to pesticides in the lab at levels predicted to occur following exposure in the wild and brain activity was recorded. They found that both types of pesticide target the same area of the bee brain involved in learning, causing a loss of function. If both pesticides were used in combination, the effect was greater.

The study is the first to show that these pesticides have a direct impact on pollinator brain physiology. It was prompted by the work of collaborators Dr Geraldine Wright and Dr Sally Williamson at Newcastle University who found that combinations of these same pesticides affected learning and memory in bees. Their studies established that when bees had been exposed to combinations of these pesticides for 4 days, as many as 30% of honeybees failed to learn or performed poorly in memory tests. Again, the experiments mimicked levels that could be seen in the wild, this time by feeding a sugar solution mixed with appropriate levels of pesticides.

Dr Geraldine Wright said: "Pollinators perform soph
'/>"/>

Contact: Rob Dawson
Rob.Dawson@bbsrc.ac.uk
01-793-413-204
Biotechnology and Biological Sciences Research Council
Source:Eurekalert

Page: 1 2

Related biology news :

1. New approaches for controlling pesticide exposure in children
2. Pesticide application as potential source of noroviruses in fresh food supply chains
3. Prenatal exposure to pesticide DDT linked to adult high blood pressure
4. Scientists take objective look at terms least toxic pesticides applied as last resort
5. Combined pesticide exposure affects bumblebee colony success
6. Air in expectant moms homes contains pesticides, border study finds
7. Commonly used pesticide turns honey bees into picky eaters
8. Effect of chronic exposure to chemicals used as weapons, pesticides under study
9. Novel combination therapy shuts down escape route, killing glioblastoma tumor cells
10. Experimental drug combination selectively destroys lymphoma cells
11. FASEB SRC announces conference registration open for: Genetic Recombination & Genome Rearrangements
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/19/2014)... devised a new implantable tissue scaffold coated with bone ... weeks. When applied to bone injuries or defects, this ... bone that looks and behaves just like the original ... a dramatic improvement over the current standard for treating ... of the patient,s body a painful process that ...
(Date:8/19/2014)... infants born with neonatal abstinence syndrome (NAS) secondary ... time going through withdrawal than others, but the ... and epigenetic (when genes are turned on or ... factors, researchers at Boston University School of Medicine ... first of its kind study to identify some ...
(Date:8/19/2014)... The ancestors of today,s crocodiles colonised the seas during ... to a new Anglo-French study which establishes a link ... temperature over a period of more than 140 million ... Martin from the Universit de Lyon, France and formerly ... week in Nature Communications ., Today, crocodiles are ...
Breaking Biology News(10 mins):Engineering new bone growth 2Engineering new bone growth 3In-utero methadone, Subutex exposure could alter gene expression, cause severe Neonatal Abstience Syndrome 2Evolution of marine crocodilians constrained by ocean temperatures 2
... age-old tradition that dates back at least 8,000 years ... about the bacteria responsible for turning milk into cheese., ... has identified a new line of bacteria they believe ... cheeses. , The team used DNA fingerprinting techniques to ...
... 6, 2009 Elsevier, a leading global healthcare and ... in the Elsevier Grand Challenge, a competition inviting ... amount of online life sciences information. ( ... on December 15th at the Massachusetts Institute of ...
... 2009, St. Louis, MO As adolescents mature into young adults, ... impact eating habits in a negative way. In a study published ... American Dietetic Association , researchers observed that while young adults enjoy ... 42% of females reported lacking time to sit down and eat ...
Cached Biology News:Wonderful cheese is all in the culture 2Finalists announced in the Elsevier Grand Challenge 2Finalists announced in the Elsevier Grand Challenge 3Young adults need to make more time for healthy meals 2
(Date:8/20/2014)... Aug. 20, 2014 /PRNewswire-iReach/ -- A case study ... between the school,s bioengineering department and the Intel® ... Intel® Software Academic Program, UCSD,s research focuses on ... human body.  Photo - ... the work of Dr. Todd P. Coleman ...
(Date:8/19/2014)... Piscataway, NJ (PRWEB) August 20, 2014 ... engineering and regenerative medicine is an inadequate vascular ... engineered constructs and decellularized tissues is critical for ... Researchers have attempted to mitigate deficiencies in vascularization ... including adding scaffold bioactivity, optimizing scaffold design and ...
(Date:8/19/2014)... Calif. (PRWEB) August 19, 2014 ... campaign to raise $200,000 to fund a corporate ... device. , This development is a critical ... model of care to the implementation of personalized ... method of practicing medicine. , Indiegogo contributions will ...
(Date:8/19/2014)... 19, 2014 Research and ... the "Spectroscopy Equipment and Accessories - ... their offering. This report ... and Accessories in US$ Thousands by the ... Raman Spectrometers, NMR-EPR Spectrometers, Near Infrared (NIR) ...
Breaking Biology Technology:Intel and University of San Diego Bioengineering Department Release Case Study on Health Sciences Research 2Vascularization in Tissue Engineering Highlighted at 12th New Jersey Symposium on Biomaterials Science 2Cellgen Diagnostics Launches Indiegogo Crowdfunding Campaign for DNA Medical Testing Device 2Cellgen Diagnostics Launches Indiegogo Crowdfunding Campaign for DNA Medical Testing Device 3Global Spectroscopy Equipment and Accessories - Strategic Business Report 2014 2
... , , SEATTLE, Aug. 11 ... 2 clinical trial of OMS302, the Company,s ophthalmologic PharmacoSurgery(TM) ... anti-inflammatory agent and an agent that causes pupil dilation ... , Omeros, Phase 1/Phase 2 trial ...
... , , SEATTLE, Aug. 11 ... quarter ended June 30, 2009. Revenue for the second quarter of 2009 ... Revenue for the six months ended June 30, 2009 was $55,000 compared to ... Dendreon,s total operating expenses for the second quarter of 2009 were ...
... Diverse Student ... , ... 11, 2009 - As a new class of eager high school seniors begins the college ... mark, a new study reveals what Americans consider to be the defining characteristics of a ...
Cached Biology Technology:Omeros Announces Positive Clinical Results of Phase 1/Phase 2 Trial of OMS302 for Use During Ophthalmologic Surgery 2Dendreon Reports Second Quarter 2009 Financial Results 2Dendreon Reports Second Quarter 2009 Financial Results 3Dendreon Reports Second Quarter 2009 Financial Results 4Dendreon Reports Second Quarter 2009 Financial Results 5Dendreon Reports Second Quarter 2009 Financial Results 6What Makes a University Great? Americans Say Renowned Faculty, Top-Rank Research Center are Most Important, According to New Survey from IP Advocate 2What Makes a University Great? Americans Say Renowned Faculty, Top-Rank Research Center are Most Important, According to New Survey from IP Advocate 3What Makes a University Great? Americans Say Renowned Faculty, Top-Rank Research Center are Most Important, According to New Survey from IP Advocate 4What Makes a University Great? Americans Say Renowned Faculty, Top-Rank Research Center are Most Important, According to New Survey from IP Advocate 5
BD BaculoGold Max-XP Insect Cell Medium 1 Liter...
Newborn Bovine Serum Heat-Inactivated...
Performance, mycoplasma, virus, and endotoxin tested...
Bethyl Laboratories Ready-To-Use IHC Bluing Reagent is used following IHC hematoxylin counterstaining with immunohistochemical procedures. Shelf-Life: 1 year from date of receipt...
Biology Products: