A study led by researchers of the Universities of Tel Aviv and Jerusalem (Israel) and Braunschweig (Germany) revealed that the rediscovered frog is a true living fossil, without close relatives among other living frogs.
The rediscovered Hula painted frog, Latonia nigriventer.
Photo: Frank Glaw, free for publication
A unique character of the Hula painted frog is its black venter with white spots.
Photo: Frank Glaw, free for publication
(Nature Communications, 04 June, 2013, doi 10.1038/ncomms2959)In 1996, an international commission evaluated the status of the Hula Painted Frog (Latonia nigriventer), an amphibian from northern Israel. The situation seems to be obvious: The habitat of the species is almost completely destroyed by intensified agriculture, and since 1955 no living individual has been observed. The species is thus declared as extinct, the first such case among amphibians worldwide.
But in some cases hope might still be justified. A team of Israeli, German and French researchers now report in the prestigous scientific journal Nature Communications on the rediscovery of the Hula Frog. After intensive nature conservation efforts in its original habitat - near the borders to Syria and Lebanon -several specimens have now again been observed in the wild.
"It is incredible that this amphibian species has survived in this intensively monitored area, without an observation for over 60 years. Maybe this emblematic frog can even become again trendsetter, and more amphibians may prove to have survived in some remote areas although we consider them as extinct" states Professor Sarig Gafny, a freshwater biologist of the Ruppin University in Israel who coordinated the field work on the rediscovered frog.
Now for the first time an in-depth scientific analysis of this enigmatic amphibian became possible - and yielded the next surprise: the Hula Frog differs strongly from its living relatives, the painted frogs from northern Africa and western Africa. Instead the Hula Frogs is related to a genus of fossil giant frogs, Latonia, which were found over much of Europe during the past 10 million years.
Dr. Elisabeth Hoffmann | idw
Link Discovered between Immune System, Brain Structure and Memory
26.04.2017 | Universität Basel
Researchers develop eco-friendly, 4-in-1 catalyst
25.04.2017 | Brown University
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
26.04.2017 | Materials Sciences
26.04.2017 | Agricultural and Forestry Science
26.04.2017 | Physics and Astronomy