Navigation Links
Kittiwakes' trans-Atlantic winter odyssey linked to breeding success
Date:1/4/2011

One of Britain's best known seabirds winters on opposite sides of the Atlantic depending on whether its breeding attempt has been successful according to new research published today in the journal Proceedings of the Royal Society B. The findings highlight previously unsuspected links between summer breeding performance and wintering distributions of kittiwakes.

The research team was led by Dr Maria Bogdanova from the Centre for Ecology & Hydrology (CEH) in conjunction with colleagues from CEH and the British Antarctic Survey (BAS).

The discovery of such patterns of segregated winter distributions is important for defining key wintering areas in declining species such as the kittiwake that are experiencing poor breeding seasons with increasing regularity.

The results show kittiwakes that experienced breeding failure left their colony earlier than successful breeders. Failed breeders then travelled over 3000km and wintered off Canada while their successful neighbours remained close to Britain. The two groups did not differ in the timing of return to the colony the following spring. However, over half the males from both groups made a previously undescribed long-distance journey out into the central Atlantic before the breeding season.

Lead author Dr Maria Bogdanova, an animal population ecologist at the Centre for Ecology & Hydrology, said, "Our results demonstrate important but previously poorly understood links between breeding performance and winter distribution, with significant implications for populations. It is fascinating that successful and unsuccessful pairs nesting only a few metres apart in the colony can be separated by thousands of kilometres in the winter."

This study used a tiny instrument (1.4g) known as a geolocator for tracking animal migration. During the 2007 breeding season, the team fitted 80 kittiwakes on the Isle of May NNR off the east coast of Scotland, with geolocators.

Geolocators were developed by BAS and have so far been used on animals such as geese, albatrosses, penguins and seals. They make regular recordings of light intensity, data which can be used to generate two geographical positions per day.

Co-author Francis Daunt, a seabird ecologist also from the Centre for Ecology & Hydrology said, "Kittiwakes have declined substantially in the last 25 years over much of their range. Conservation efforts to protect wintering grounds should consider that winter distributions may be shifting as breeding failure is becoming more common."


'/>"/>

Contact: Barnaby Smith
bpgs@ceh.ac.uk
44-792-029-5384
Centre for Ecology & Hydrology
Source:Eurekalert  

Related biology news :

1. Plants remember winter to bloom in spring with help of special molecule
2. Researchers learn that genetics determine winter vitamin D status
3. Ocean conditions likely to reduce Colorado River flows during this winters drought
4. Winter drought stress can delay flowering, prevent fruit loss in orange crops
5. Many urban streams harmful to aquatic life following winter pavement deicing
6. Winter Olympics: Altitude affects skill sports, not just endurance events
7. City of Winter Park Looks to DigitalPersona Software for Stronger Security and CJIS Compliance
8. Where do puffins go in the winter?
9. Multiple health concerns surface as winter, vitamin D deficiences arrive
10. Unique winter-hardy hibiscus has roots with AgriLife Research scientist in Vernon
11. Highest ever winter water temperatures recorded
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Kittiwakes' trans-Atlantic winter odyssey linked to breeding success
(Date:6/20/2016)... DALLAS , June 20, 2016 ... criminal justice technology solutions for public safety, investigation, ... by the prisons involved, it has secured the ... Corrections (DOC) facilities for Managed Access Systems (MAS) ... (4) additional facilities to be installed by October, ...
(Date:6/7/2016)... -- Syngrafii Inc. and San Antonio Credit Union (SACU) ... Syngrafii,s patented LongPen™ eSignature "Wet" solution into SACU,s ... in greater convenience for SACU members and operational ... document workflow and compliance requirements. Logo ... Highlights: ...
(Date:6/1/2016)... NEW YORK , June 1, 2016 ... Biometric Technology in Election Administration and Criminal Identification to ... According to a recently released TechSci Research report, " ... Sector, By Region, Competition Forecast and Opportunities, 2011 - ... $ 24.8 billion by 2021, on account of growing ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... June 24, 2016  Regular discussions on a range of ... between the two entities said Poloz. Speaking at ... Ottawa , he pointed to the country,s inflation target, ... government. "In certain ... institutions have common economic goals, why not sit down and ...
(Date:6/24/2016)... ... ... While the majority of commercial spectrophotometers and fluorometers use the z-dimension of ... higher end machines that use the more unconventional z-dimension of 20mm. Z-dimension ... of the cuvette holder. , FireflySci has developed several Agilent flow cell product ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... its second eBook, “Clinical Trials Patient Recruitment and Retention Tips.” Partnering with experienced ... this eBook by providing practical tips, tools, and strategies for clinical researchers. , ...
(Date:6/23/2016)... 2016   Boston Biomedical , an industry ... to target cancer stemness pathways, announced that its ... Drug Designation from the U.S. Food and Drug ... including gastroesophageal junction (GEJ) cancer. Napabucasin is an ... cancer stemness pathways by targeting STAT3, and is ...
Breaking Biology Technology: