Navigation Links
Displaced songbirds navigate in the high Arctic

By experimentally relocating migratory white-crowned sparrows (Zonotrichia leucophrys gambelii) from their breeding area in the Canadian Northwest Territories to regions at and around the magnetic North Pole, researchers have gained new insight into how birds navigate in the high Arctic. In particular, the findings aid our understanding of how birds might determine longitudinal information--a challenging task, especially at the earth's poles.

The work is reported in Current Biology by Susanne kesson and colleagues at Lund University in Sweden.

Migratory birds navigating over long distances can determine their latitude on the basis of geomagnetic and celestial information, but longitudinal position is much more difficult to determine. In the new work, researchers investigated whether birds can define their longitude after physical displacements in the high Arctic, where the geomagnetic field lines are steep and the midnight sun makes star navigation impossible for much of the summer.

White-crowned sparrows are nocturnally migrating birds that breed in northern Canada and perform long migrations covering a few thousand kilometers to winter in the southern United States. In the study, young and adult white-crowned sparrows were captured with mistnets near Inuvik, NW Territories, Canada, during mid-July to mid-August--the end of the breeding period and shortly before migration--and transported by a Canadian icebreaker along a northeasterly route to nine sites on the tundra, among them the magnetic North Pole (located on Ellef Ringnes Island). The researchers then recorded the birds' directional orientation in cage experiments.

The scientists found that both adult and juvenile birds abruptly shifted their orientation from the migratory direction to a direction leading back to the breeding area or the normal migratory route, suggesting that the birds began compensating for the west-to-east displacement by using geomagnetic cues alone or i
'"/>

Source:Cell Press


Page: 1 2

Related biology news :

1. Migratory songbirds have a specialized night-vision brain area
2. Bats prey on nocturnally migrating songbirds
3. Personality-gene makes songbirds curious
4. Lands surface change on Alaska tundra creating longer, warmer summers in Arctic
5. Record air pollution above the Arctic
6. Pollutant haze heats the Arctic
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Displaced songbirds navigate the high Arctic

(Date:9/18/2014)... foliage season that prompts millions of Americans to undertake jaunts ... possibly last a little longer within a century, according to ... in some areas of the United States as summer temperatures ... the journal Global Ecology and Biogeography . For instance, ... the state tree of New Hampshire could change color ...
(Date:9/18/2014)... tiny strands of nucleic acid that contain instructions for ... data, our DNA is copied into RNA molecules, which ... in our cells. , Several years ago, scientists ... other known RNAs, this molecule is circular, and was ... has been known about how they are produced. Moreover, ...
(Date:9/18/2014)... 2014 -- Arizona turned its newborn screening program into a ... months, earning it the first-ever Newborn Screening Quality Award from ... presented Will Humble, M.P.H., Arizona,s Department of Health Services director, ... Humble established a policy of full transparency for the length ... samples to the lab for analysis, and set a target ...
Breaking Biology News(10 mins):Fall foliage season may be later, but longer on warmer Earth 2Fall foliage season may be later, but longer on warmer Earth 3Fall foliage season may be later, but longer on warmer Earth 4Scientists find how mysterious 'circular RNA' is formed, claim muscular dystrophy link 2March of Dimes honors Arizona with first-ever newborn screening award 2March of Dimes honors Arizona with first-ever newborn screening award 3
... long thought to have fully recovered from whaling, were once ... according to a report to be published September 10 in ... Todays population of more than 22,000 gray whales has successfully ... now the most abundant whale on the North American west ...
... consultant to UNESCO and a former Administrator of the National ... Stevens Institute of Technology, Sept. 26, titled, Global Warming and ... The talk will be delivered at Stevens Babbio Center for ... Babbio Center is located on the Stevens campus in Hoboken, ...
... of Energy,s Brookhaven National Laboratory have developed new ways ... oxide, a material used in a variety of industrial ... materials may lead to improved catalysts for hydrogen production, ... research is published in two papers now available online, ...
Cached Biology News:Gray whales a fraction of historic levels, genetic research says 2Global Warming and the Habitability of Planet Earth, Sept. 26 2Tiny tubes and rods show promise as catalysts, sunscreen 2
(Date:9/19/2014)... ROCKLAND, Massachusetts , September 19, 2014 ... with the 53rd European Society for Paediatric Endocrinology (ESPE) ... advancement of science and medical research in the field ... of Merck KGaA, Darmstadt, Germany , ... Growth Innovation (GGI) for 2014. The awards were announced ...
(Date:9/18/2014)... HealthTronics, Inc ., a ... products and services, announced that a poster related ... versus external beam radiotherapy (EBRT) is being presented ... Association (MAAUA) Annual Meeting in Baltimore, Maryland September ... Cryosurgery and External Beam Radiation as Treatments for ...
(Date:9/18/2014)... Mass. (PRWEB) September 18, 2014 A ... of an MRI scanner is currently being tested as ... and Women's Hospital in Boston with the aim of ... images, can make prostate cancer biopsies faster, more accurate, ... novel system also has the potential to deliver prostate ...
(Date:9/18/2014)... Bryan-College Station, Texas (PRWEB) September 18, 2014 ... University System Chancellor John Sharp, Texas A&M Health ... from the U.S. Department of Health and Human ... GSK today dedicated a national pandemic influenza vaccine ... will serve as an anchor for the Texas ...
Breaking Biology Technology:EMD Serono Awards Grant for Growth Innovation (GGI) for the First Time 2EMD Serono Awards Grant for Growth Innovation (GGI) for the First Time 3HealthTronics Announces Data Comparing Cryotherapy Versus Radiation for Treating Prostate Cancer Poster Presented at the American Urological Association Regional Meeting 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 4Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 5Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 6Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 2Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 3Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 4
... the Hyatt Regency Cambridge, ... Massachusetts, ... leading marketplace for expertise, and the Biotechnology Industry,Organization (BIO) announced an ... venture investment community,registered to attend the BIO National Venture Conference, with ...
... Executive Positions, WITTEN, Germany, April 8 Sangui ... its,fiscal year ended June 30, 2006, on April 3, ... with the SEC the company almost tripled its sales,of ... level. In,FY 2006, Sangui yielded sales of approximately USD ...
... DUBLIN, Calif., April 8, 2008 Microchip,Biotechnologies, Inc. ... Centre,for DNA Barcoding (CCDB), at the Biodiversity Institute ... participant to join MBI,s early,access program for the ... is the,first fully automated and integrated system for ...
Cached Biology Technology:Gerson Lehrman Group Extends Partnership With BIO to Provide Scientific Expertise for the First Annual BIO National Venture Conference 2Gerson Lehrman Group Extends Partnership With BIO to Provide Scientific Expertise for the First Annual BIO National Venture Conference 3Sangui BioTech International, Inc., Reports Sales Increase, Continued Losses 2Sangui BioTech International, Inc., Reports Sales Increase, Continued Losses 3Canadian Centre for DNA Barcoding to Participate in Microchip Biotechnologies Early Access Program for Microchip-Based DNA Sample Preparation and Cycle Sequencing 2
Recombinant Mouse TGF-beta RII/(human) Fc Chimera, CF...
Recombinant Mouse Noggin...
... Antibody Sampler Kit Kit Includes: ... 40 ul Histone Deacetylase 3 (HDAC3) Antibody, ... (HDAC4) Antibody, Catalog #2072, 40 ul Histone ... ul Histone Deacetylase 6 (HDAC6) Antibody, Catalog ...
An instrument that delivers an accurate and uniform amount of light energy to cells to photoactivate csiRNA products....
Biology Products: