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
Trees and climate change: Faster growth, lighter wood
14.08.2018 | Technische Universität München
Animals and fungi enhance the performance of forests
01.08.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
17.08.2018 | Event News
08.08.2018 | Event News
27.07.2018 | Event News
17.08.2018 | Physics and Astronomy
17.08.2018 | Information Technology
17.08.2018 | Life Sciences