Sea turtle nesting attempts are impeded by lost or abandoned logs that accumulate along the country’s coastal beaches. Logs are floated downriver from forests to coastal lumberyards in the Gabonese Republic, but some float out to sea and then wash ashore, where they form large tangles.
In an aerial survey, Laurance’s team—co-coordinated by J. Michael Fay of the Wildlife Conservation Society—counted more than 11,000 logs along Gabon’s beaches. In the most important area for turtle nesting, Pongara Beach, more than one-third of the beach was blocked by logs. In some places, scientists found up to 247 logs per kilometer of beach.
“It’s really sad to see what the logs are doing to the turtles,” Laurance said. “Sea turtles move very slowly on land. When a log blocks their path, sometimes they just give up and return to the sea. In other cases they lay their eggs too close to the waterline, where the eggs are killed by seawater. Turtles also become entangled among the logs and die.”
The authors estimated that 8 to 14 percent of all turtle nesting attempts are thwarted by logs, sometimes with fatal results for the female. Most of the turtles nesting in this area are leatherback turtles (Dermochelys coriacea), a critically endangered species according to the IUCN Red Data Book.
“Survival of the leatherback turtle is threatened by fishing, environmental degradation and predation. It’s really unfortunate that logging is a threat as well, because plans are afoot to dramatically increase the logging of African rainforests,” said Laurance.
New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)
Reusable carbon nanotubes could be the water filter of the future, says RIT study
30.03.2017 | Rochester Institute of Technology
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...
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