Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Albatross camera reveals fascinating feeding interaction with killer whale

08.10.2009
Scientists from British Antarctic Survey, National Institute of Polar Research, Tokyo, and Hokkaido University, Japan, have recorded the first observations of how albatrosses feed alongside marine mammals at sea.

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 Office

Athena Dinar, Tel: +44 (0)1223 221 414; mobile: 07740 822229
email: amdi@bas.ac.uk;
Linda Capper, Tel: ++44 (0) 1223 221448; mobile: 07714 233744
email: lmca@bas.ac.uk
Authors:
Dr Richard Phillips, Tel, ++44 (0) 1223 221610;
email: raphil@bas.ac.uk
Notes for Editors:
Stunning broadcast-quality footage and stills of black-browed albatrosses at Bird Island are available from the BAS Press Office as above. Low resolution still images from the albatross camera showing the birds feeding with a killer whale are also available.

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

Athena Dinar | EurekAlert!
Further information:
http://www.bas.ac.uk
http://www.antarctica.ac.uk
http://www.hokudai.ac.jp/en/index.html

More articles from Life Sciences:

nachricht Two Group A Streptococcus genes linked to 'flesh-eating' bacterial infections
25.09.2017 | University of Maryland

nachricht Rainbow colors reveal cell history: Uncovering β-cell heterogeneity
22.09.2017 | DFG-Forschungszentrum für Regenerative Therapien TU Dresden

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: LaserTAB: More efficient and precise contacts thanks to human-robot collaboration

At the productronica trade fair in Munich this November, the Fraunhofer Institute for Laser Technology ILT will be presenting Laser-Based Tape-Automated Bonding, LaserTAB for short. The experts from Aachen will be demonstrating how new battery cells and power electronics can be micro-welded more efficiently and precisely than ever before thanks to new optics and robot support.

Fraunhofer ILT from Aachen relies on a clever combination of robotics and a laser scanner with new optics as well as process monitoring, which it has developed...

Im Focus: The pyrenoid is a carbon-fixing liquid droplet

Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.

A warming planet

Im Focus: Highly precise wiring in the Cerebral Cortex

Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.

The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...

Im Focus: Tiny lasers from a gallery of whispers

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...

Im Focus: Ultrafast snapshots of relaxing electrons in solids

Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!

When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

Fraunhofer ISE Pushes World Record for Multicrystalline Silicon Solar Cells to 22.3 Percent

25.09.2017 | Power and Electrical Engineering

Usher syndrome: Gene therapy restores hearing and balance

25.09.2017 | Health and Medicine

An international team of physicists a coherent amplification effect in laser excited dielectrics

25.09.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>