A miniature digital camera was attached to the backs of four black-browed albatrosses (Thalassarche melanophrys) breeding at colonies on Bird Island, South Georgia in the Southern Ocean. Results are published online this week in the open-access journal PLoS ONE from the Public Library of Science.
The amazing pictures reveal albatrosses foraging in groups while at sea collecting food for their chicks. It also provides the first observation of an albatross feeding with a killer whale – a strategy they may adopt for efficiency.
The camera, developed by the National Institute for Polar Research in Tokyo, is removed when the albatross returns to its breeding ground after foraging trips. It is small (the size of a packet of polo mints*) and weighs 82g. Although the camera slightly changes the aerodynamic shape of the albatross, it didn't affect the breeding success of the study birds.
Dr Richard Phillips from British Antarctic Survey (BAS) says,
"These images are really interesting. They show us that albatrosses associate with marine mammals in the same way as tropical seabirds often do with tuna. In both cases the prey (usually fish) are directed to the surface and then it's easy hunting for the birds."
The study took place at the breeding colony of black-browed albatrosses at Bird Island, South Georgia in January 2009, as part of a UK-Japan International Polar Year 2007-9 project.
*the camera is also the size of a large lipstick
Issued by the British Antarctic Survey Press OfficeAthena Dinar, Tel: +44 (0)1223 221 414; mobile: 07740 822229
From the eye of the albatrosses: a bird-borne camera shows an association between albatrosses and a killer whale in the Southern Ocean by Kentaro Q. Sakamoto, Akinori Takahashi, Takashi Iwata and Phil N. Trathan is published this week in the journal PLOS ONE Public Library of Science.
The four albatrosses were selected at their nest site on Bird Island and a still-camera was taped onto the back feathers of the birds. Over 28,000 pictures were taken from cameras on three albatrosses. One camera wasn't retrieved. Foraging trips lasted between half a day and five and a half days. The camera, combined with depth and external temperature data loggers, was used to study the interactions between albatrosses and their environment during their foraging trips.
The Cambridge-based British Antarctic Survey (BAS) is a world leader in research into global environmental issues. With an annual budget of around £45 million, five Antarctic Research Stations, two Royal Research Ships and five aircraft, BAS undertakes an interdisciplinary research programme and plays an active and influential role in Antarctic affairs. BAS has joint research projects with over 40 UK universities and has more than 120 national and international collaborations. It is a component of the Natural Environment Research Council. More information about the work of the Survey can be found at: www.antarctica.ac.uk
National Institute of Polar Research, Japan is the leading organisation of Japanese scientific activities in both Arctic and Antarctic regions, and conducts active polar research through national programs as well as international collaborations. More information can be found at http://www.nipr.ac.jp/english/
Hokkaido University, located in Sapporo, Japan, is one of the leading Japanese universities, and has strong tradition of field-based science. More information can be found at http://www.hokudai.ac.jp/en/index.html
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