Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Gannet population under threat from global warming

19.06.2007
Researchers at the University of Leeds have warned that global warming is a major threat to the gannet, a species known for its stable populations and constant breeding success.

In a paper published in Marine Ecology Progress Series, Dr Keith Hamer of the University’s Faculty of Biological Sciences reports that diminishing fish stocks around gannets’ natural habitats – caused partly by an increase in sea temperature – are forcing birds to search further afield in search of food for their young.

“Usually, one parent will stay with a chick while the other goes out hunting, says Dr Hamer. “But if left for long enough, it will eventually leave the nest itself to find food. This leaves the chick alone and vulnerable to attack - mainly from other gannets seeking prime nesting space, which is fiercely contested within colonies.”

Two thirds of the world’s gannets nest in the UK, with the largest northern gannet colony found in the Scottish islands of St Kilda. Dr Hamer’s research group has been studying birds nesting at Bass Rock off the Northumbrian coast, using satellite transmitters attached to the birds, to gather information about their movements.

“Gannets have been forced to travel as far as the Norwegian coast to find food – a round trip of over 1000km,” said Dr Hamer. “They compensate by flying faster to make sure they don’t leave their nests for too long, but our research shows they’ve hit their limit. They just physically can’t increase their speed any further.”

Until now, gannets have bucked the trend in the North Sea, their breeding success remaining stable while other seabirds were in decline. However, as sea temperatures continue to rise and fish stocks diminish, gannets are being forced further afield and are away from their nests for longer. The Leeds researchers are already seeing the numbers of unprotected chicks rise and fear it can only get worse.

Gannets pair for life and breed annually, occupying the same nest each year. It takes forty days for an incubated egg to hatch and a further ninety days for chicks to fledge. “There’s only time for each gannet pairing to raise one chick each year, so with an increasing number losing their chicks and their nesting sites we may start to see a decline in overall numbers,” says Dr Hamer.

Clare Elsley | alfa
Further information:
http://reporter.leeds.ac.uk/press_releases/current/gannets.htm

More articles from Ecology, The Environment and Conservation:

nachricht Global threat to primates concerns us all
19.01.2017 | Deutsches Primatenzentrum GmbH - Leibniz-Institut für Primatenforschung

nachricht Reducing household waste with less energy
18.01.2017 | FIZ Karlsruhe – Leibniz-Institut für Informationsinfrastruktur GmbH

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

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

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>