Mosquitoes in the genus Anopheles are best known as the vectors of malaria and E. culicivora is the first predator that has been found to single out Anopheles as prey. In a sated condition, E. culicivora´s preference held regardless of the sex or age of the spider. When fasted, larger spiders chose both mosquito choices (sympatric mosquitoes of different genera) in equal numbers, but the smaller E. culicivora maintained their preference for Anopheles.
Anopheles holds its body at a 45 degree angle relative to the substrate when resting, whereas other mosquitoes rest with their bodies parallel to the surface of the substrate. We investigated whether the characteristic resting posture of Anopheles was a cue E. culicivora uses to distinguish these mosquitoes from others. To do this we drew 3D virtual mosquitoes whose movement was based on frame-by-frame copying of digital video footage of grooming Anopheles. The use of virtual mosquitoes eliminated variables except the variable in question. We found the single most important visual cue used to distinguish Anopheles mosquitoes is its resting position. Finding a predator that chooses Anopheles as its preferred prey shows that we should not abandon efforts to search for avenues for the biological control of malaria.
Atomic-level motion may drive bacteria's ability to evade immune system defenses
24.04.2017 | Indiana University
Two-dimensional melting of hard spheres experimentally unravelled after 60 years
24.04.2017 | University of Oxford
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
24.04.2017 | Physics and Astronomy
24.04.2017 | Materials Sciences
24.04.2017 | Life Sciences