The white-clawed crayfish is native to British waters and scientists believe it plays a vital role in preserving the natural biodiversity of our inland waters. Researchers from the University of Leeds now need to find several large ponds into which the animal can be introduced and then study the effect their presence has over several months.
Neal Haddaway, a PhD student at the Faculty of Biological Sciences says; “This is a great opportunity to take part in a unique backyard conservation project. Our studies will help us understand the role this creature plays in keeping water clean, keeping the numbers of unwelcome pests down and generally managing local ecosystems. Volunteers who offer up the use of their ponds will be making a real difference to a British conservation project.”
Declining numbers of the crayfish are found in the several areas of Yorkshire including the Wharfe, Upper Aire, Upper Ure, Swale and some streams to the north of Leeds. In the 1970’s new species were introduced to these waters in the hope of enhancing food supplies for fish but the American signal crayfish eat vast quantities of snails and mayfly larvae, disrupting the existing food-chain. In addition to being more predatory in this way, they also brought with them a plague that has devastated the local population. The white-clawed crayfish now faces extinction if researchers fail to find a way to save it.
Dr Alison Dunn says; “We believe that these creatures play a fundamental part in maintaining the ecosystems contained within our streams and rivers, if the white crayfish are lost then plant and animal biodiversity could be badly affected. It could become extinct within the next ten years if we do not act now. ”
Neal Haddaway is hoping to find ponds in gardens and on farms that already have some wildlife in them and do not have a plastic lining. The ponds need to be between two to five metres across, but less than 15 metres and be at least five years old. After the white-clawed crayfish have been introduced then the pond-life and water quality will be tested on a regular basis for any changes that seem to occur as a result of their being there.
Anyone who is interested in taking part in this project can contact Neal by emailing email@example.com
Rochester scientists discover gene controlling genetic recombination rates
23.04.2018 | University of Rochester
One step closer to reality
20.04.2018 | Max-Planck-Institut für Entwicklungsbiologie
Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.
Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.
Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
23.04.2018 | Physics and Astronomy
23.04.2018 | Physics and Astronomy
23.04.2018 | Trade Fair News