Navigation Links
Golden eagles studied by satellite
Date:10/25/2010

Large-scale wind farm establishment may have a negative effect on Sweden's golden eagles. In a unique project in northern Sweden, scientists at the Swedish University of Agricultural Sciences (SLU) are trapping adult golden eagles and fitting them with satellite transmitters.

The satellite transmitters emit a signal once an hour during the daytime. These signals provide the scientists with a picture of how the birds use the landscape.

"Hopefully we can identify the golden eagles' favourite habitats. When we've done that we can see where wind farms can be established without disturbing the eagles," says project manager Tim Hipkiss at SLU's Department of Wildlife, Fish and Environmental Studies.

The potential risks with wind farms are that the birds collide with the rotor blades and lose valuable hunting habitat.

Up to now the scientists have fitted transmitters on to six eagles. The goal is twenty adult eagles from ten territories, five where wind farms are planned and five without wind farms (reference areas). The project is estimated to run for long enough for the scientists to monitor the eagles during wind farm establishment. Most of the sites are in Vsterbotten county in northern Sweden.

"Trapping adult golden eagles alive has never been done before in Sweden, and probably nowhere else in Europe. This is unique, and most people thought we wouldn't succeed," says Tim Hipkiss.

SLU's scientists have acquired the assistance of some of the world's leading experts in this field, from USA, where it is more common to trap birds of prey as part of conservation projects.

The trapping is carried out by the scientists placing out carrion at feeding sites a few weeks in advance, so that the eagles get used to finding food there. After this the American experts conceal a net trap and erect a hide a small distance from the net.

"Then you just have to wait patiently in the hide. When the eagle lands on the food, the person in the hide releases the net. With the help of an assistant waiting nearby the eagle is then dealt with," says Tim Hipkiss.

Fitting the satellite transmitter takes around half an hour, and it is important those involved know what they are doing. The eagles can weigh up to six kilos and wield dangerous claws. By weighing the bird and measuring its wing-length, you can tell if it is a male or a female (females are larger). The transmitter sits in place like a comfortable backpack.

Tim Hipkiss says that the birds have no problems flying with these transmitters. The adult birds fly several kilometres per day. Last summer, the scientists also fitted five juvenile golden eagles with transmitters, and have since monitored them for several months.

"The juveniles fly as they should, and some have already flown to new hunting grounds tens of kilometres away. Thanks to the transmitters we can find the birds if any of them have any problems, for example have not moved for several days," says Tim Hipkiss.

The satellite transmitters will provide information on how far the eagles fly and how they move about their territories before and after wind farm establishment. The scientists have already observed that the eagles fly further than previously thought. "It's really great to see that this works. So far the project looks successful," says Tim Hipkiss.


'/>"/>

Contact: Ulla Ahlgren
Ulla.Ahlgren@adm.slu.se
46-706-623-107
Swedish Research Council
Source:Eurekalert  

Related biology news :

1. A golden bullet for cancer
2. What should goldenrod do to avoid an insect attack? Duck
3. Like little golden assassins, smart nanoparticles identify, target and kill cancer cells
4. Mystery of golden ratio explained
5. A new gene silencing platform -- silence is golden
6. Computation and genomics data drive bacterial research into new golden age
7. Decline in Alaskan sea otters affects bald eagles diet
8. Bacterial diversity of Tablas de Daimiel studied for first time
9. Drug studied as possible treatment for spinal injuries
10. Hispanic women and breast cancer: An understudied group
11. Potential new herpes therapy studied
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Golden eagles studied by satellite
(Date:4/28/2016)... India , April 28, 2016 ... Infosys (NYSE: INFY ), and Samsung SDS, a ... that will provide end customers with a more secure, ... services.      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ) , ... services, but it also plays a fundamental part in enabling ...
(Date:4/28/2016)... , April 28, 2016 First quarter 2016: ... up 966% compared with the first quarter of 2015 ... SEK 589.1 M (loss: 18.8) and the operating margin was 40% ... 0.32) Cash flow from operations was SEK 249.9 M ... revenue guidance is unchanged, SEK 7,000-8,500 M. The operating ...
(Date:4/26/2016)... India and LONDON ... Infosys Finacle, part of EdgeVerve Systems, a product ... and Onegini today announced a partnership to integrate ... solutions.      (Logo: http://photos.prnewswire.com/prnh/20151104/283829LOGO ... to provide their customers enhanced security to access ...
Breaking Biology News(10 mins):
(Date:4/27/2016)... 2016 ReportsnReports.com adds 2016 ... focus on US, EU, China ... the healthcare business intelligence collection of its growing ... report on the Flow Cytometry market spread across ... 282 tables and figures is now available at ...
(Date:4/26/2016)... , ... April 26, 2016 , ... The European ... been selected as one of three finalists for the European Inventor Award 2016 in ... innovation prize will be announced at a ceremony in Lisbon on June 9th. , ...
(Date:4/26/2016)... (PRWEB) , ... April 26, 2016 , ... This unique ... Scottsdale and will offer attendees an opportunity to get the lowdown on female fertility ... Over cocktails and appetizers, Dr. Jesse Hade, of Boston IVF - The Arizona Center, ...
(Date:4/26/2016)... VIENNA and ... The prize recognizes the innovation capabilities ... innovations that will benefit patients and laboratory diagnostics ... ) , Norma Instruments , ... setting products in the field of hematology, announced ...
Breaking Biology Technology: