Although bluetongue has not been recorded in the UK, the last eight years have seen it spread throughout much of southern and eastern Europe and climate change is allowing it to extend into more northerly areas than ever before. Recent outbreaks have seen the virus that causes bluetongue being carried by different species of midge which are known to be prevalent in the UK. Researchers funded by the Biotechnology and Biological Sciences Research Council (BBSRC) and Defra are calling for farmers to let them set up light traps to run overnight on agricultural land around the country. The biting midges caught in the traps can then be analysed to identify their species and to determine their capacity to spread bluetongue virus.
Dr Simon Carpenter from the BBSRC-sponsored Institute for Animal Health (IAH), explained: “We want to better understand both the distribution of biting midges and their seasonal abundance. Using light traps to understand where the hotspots of midge activity are, and combining this with information from weather satellites and climate change models, we will be able to predict the areas of the UK and times of year most at threat from bluetongue if it does arrive here.”
Bluetongue is caused by a virus that can reproduce in all species of ruminant. This means that animals unaffected by the disease, such as cattle, can be covert carriers of the virus, infecting more livestock. In its severe form bluetongue most often affects sheep and some species of deer and can result in respiratory problems, swelling, fever and death. The research team at IAH are world leaders in understanding bluetongue and were the first to highlight its recent spread into southern Europe.
Temperature and rainfall are key variables in the ability of the carrier midges to breed and spread the virus. Below about 8-10 degrees Celsius development of adult midges is inhibited but on warm summer nights (18-29 degrees Celsius) the midges are much more active. Studies have even found the virus can lay dormant for up to a month in midges when the temperature falls below 10 degrees Celsius, becoming active when temperatures rise. If winters become shorter with global warming the midges and hence the virus may not be killed off. Midges require semi-aquatic breeding sites so rainfall is important in understanding disease transmission.
The team want to use the data gathered from farms as the first step to advising livestock farmers on the most effective preventative methods. Professor Philip Mellor, also from IAH, said: “If we can establish when during summer and autumn and under what weather conditions midge populations are best able to spread bluetongue virus we can use satellite images to predict which farms are most at risk and when they are most at risk. We are also analysing how insecticide usage or changing the management of livestock could help to prevent the spread of the virus by preventing animals being bitten by midges in the field.”
Matt Goode | alfa
New insight into why Pierce's disease is so deadly to grapevines
11.06.2018 | University of California - Davis
Where are Europe’s last primary forests?
29.05.2018 | Humboldt-Universität zu Berlin
Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.
Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...
The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.
Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.
An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.
Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...
Light detection and control lies at the heart of many modern device applications, such as smartphone cameras. Using graphene as a light-sensitive material for...
Water molecules exist in two different forms with almost identical physical properties. For the first time, researchers have succeeded in separating the two forms to show that they can exhibit different chemical reactivities. These results were reported by researchers from the University of Basel and their colleagues in Hamburg in the scientific journal Nature Communications.
From a chemical perspective, water is a molecule in which a single oxygen atom is linked to two hydrogen atoms. It is less well known that water exists in two...
13.06.2018 | Event News
08.06.2018 | Event News
05.06.2018 | Event News
15.06.2018 | Materials Sciences
15.06.2018 | Ecology, The Environment and Conservation
15.06.2018 | Power and Electrical Engineering