Navigation Links
Overbearing colored light may reveal a second mechanism by which birds interpret magnetic signals

Magnetic orientation is critical to the migratory success of many bird species. By studying the influence of light on the ability of migratory birds to orient to magnetic signals, researchers have found clues to suggest that birds' orientation abilities may be more complex than previously thought and that birds may be able to interpret magnetic signals by more than one mechanism. The work is reported in Current Biology by a team including Thorsten Ritz, of the University of California, Irvine, and Wolfgang and Roswitha Wiltschko, of the University of Frankfurt, Germany.

It has been known for many years that birds possess a magnetic "inclination compass," which essentially allows birds to obtain directional information from the magnetic field by interpreting the angle of magnetic-field lines with regard to the horizon rather than by interpreting the magnetic field's polarity. Previous work by Dr. Ritz had suggested that in interpreting magnetic signals, birds employed a so-called chemical compass that worked by way of chemical reactions in specialized photopigments in their eyes. The chemical-compass idea implied that magnetoreception was light dependent, and this possibility was subsequently given support by work from the Wiltschko team showing that the orientation of European robins, a night-migrating species, was influenced by the intensity of light in the blue-green spectrum.

In the present study, the Ritz and Wiltschko groups teamed up to analyze the orientation behavior under turquoise light in detail and revealed an unexpected phenomenon: Increasing the intensity of turquoise light changes the birds' orientation significantly, in comparison to dimmer light levels. The researchers found that in dim turquoise light, similar to that found about 33 minutes after sunset, the birds show normal migratory orientation, with the seasonal shift between southerly directions in autumn and northerly directions in spring. Tests under specific magnetic conditi
'"/>

Source:Cell Press


Page: 1 2

Related biology news :

1. Researchers discover way to make cells in the eye sensitive to light
2. Recent breakthroughs in common adult leukemia highlighted in New England Journal of Medicine
3. Bacteria collection sheds light on urinary tract infections
4. Sea skate experiment sheds light on human cell transport
5. X-Ray Beams And Fruit Fly Flight Simulator Aid Scientists View Of Muscle Power
6. McGill researchers shed light on formation of carcinogen in food
7. Scientists discover how plants disarm the toxic effects of excessive sunlight
8. Medical molecules designed to respond to visible light that can penetrate tissue
9. Genetic defects give the immune system the green light to attack the pancreas
10. Researchers find gene that may be at root of potato blight
11. Remote control flies? Fly behavior controlled by laser light
Post Your Comments:
(Date:7/8/2015)... The consumer products industry for innovative ... products such as wearables, smart wallets & other smart technology ... devices continues to rapidly grow.  Biometrics & Wearable Device Companies ... Google Inc. (NASDAQ: GOOG ), Apple Inc. (NASDAQ: ... (NASDAQ: GPRO ) and Baidu Inc. (NASDAQ: BIDU ...
(Date:7/7/2015)... Conn. , July 7, 2015 NXT-ID, Inc. (NASDAQ: ... focused on the growing mobile commerce market announces a revised version ... this week. The commercial will air on CNBC in ... Los Angeles and San Francisco ... The commercial focuses on Wocket,s ability to replace all the cards ...
(Date:7/2/2015)... GOTHENBURG, Sweden , July 2, 2015 ... fingerprint sensors FPC1025, FPC1035, FPC1145 and FPC1155 from the distributor ... is one of FPC,s distributors in Asia ... Q4 2015. The sensors will be used by smartphone manufacturers ... 268 MSEK is included in the communicated revenue guidance of ...
Breaking Biology News(10 mins):Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 2Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 3Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 4Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 5Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 6Wocket Smart Wallet Commercials Airing on CNBC to Showcase This Summer's Must- Have Tech Product 2Wocket Smart Wallet Commercials Airing on CNBC to Showcase This Summer's Must- Have Tech Product 3FPC Receives Order for Touch Fingerprint Sensors of 268 MSEK 2
... scorpions as bad-natured killers of hapless turtles that naively agree ... see them in a different light. Ke Dong, MSU ... with the hopes of finding new ways to protect plants ... issue of the Journal of Biological Chemistry , have ...
... new study in rats is shedding light on how ... The more rats are sleep-deprived, the more some of ... task performance. Even though the animals are awake and ... in the thinking part of their brain, or cortex, ...
... , Male peacock tail plumage and courtship antics likely ... according to recent Queen,s University research. Roz Dakin ... the number of eyespots on a peacock,s tail does ... tails are clipped to considerably reduce the number of ...
Cached Biology News:Tired neurons caught nodding off in sleep-deprived rats 2Tired neurons caught nodding off in sleep-deprived rats 3For peacocks, the eyespots don't lie 2
(Date:7/30/2015)... (PRWEB) , ... July 31, 2015 , ... Ralco is ... Center at the Lyon County Fair to be held August 5-9 in Marshall. The ... where their meals come from and how agriculture impacts their daily lives. This unique ...
(Date:7/30/2015)... Washington , July 30, 2015 ... Market, by Product (Software, Molecular Modeling, PB/PK, PKPD, Trial ... Discovery & Development, Preclinical, Clinical Trial), by End Users ... Biosimulation Market is expected to reach USD 2,107.99 million ... a CAGR of 15.29%. Browse more ...
(Date:7/30/2015)... , July 30, 2015 Ascendis ... company that applies its innovative TransCon technology to ... top-line results from a six-month Phase 2 study ... TransCon Growth Hormone in 53 treatment-naïve, pre-pubertal children ... "We are extremely pleased with the top-line results ...
(Date:7/29/2015)... 2015 Sanofi, a global ... second quarter of 2015. CEO Olivier Brandicourt ... performance in different businesses. Watch video ... Topics covered in the interview ... - Performance drivers - Diabetes ...
Breaking Biology Technology:Ralco Announces Primary Sponsorship of Ralco Enrichment Center at Lyon County Fair 2Biosimulation Market Worth 2,107.99 Million USD by 2020 2Biosimulation Market Worth 2,107.99 Million USD by 2020 3Biosimulation Market Worth 2,107.99 Million USD by 2020 4Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 2Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 3Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 4Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 5Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 6Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 7
... September 26 ,Nobilon International B.V., part of Organon, ... and Protherics PLC, the international biopharmaceutical,company focused on ... licensed Protherics, CoVaccine HT(TM) adjuvant for use in ... people. More than 300 million doses of ...
... is great satisfaction when theoretical work is eventually supported ... a team of Italian and US scientists when they ... fluid science experiment that is currently orbiting the Earth ... only launched a week ago, the scientists are already ...
... Glycominds Ltd., a biodiagnostics,company specializing in glycan biomarkers ... cancer, announced today that has,entered the Biomolecular Photonic ... the Government of Israel to improve in-vivo imaging ... BMP consortium was,approved for three years and was ...
Cached Biology Technology:Protherics Licenses its CoVaccine HT Adjuvant to Nobilon for Influenza Vaccine Indications 2Protherics Licenses its CoVaccine HT Adjuvant to Nobilon for Influenza Vaccine Indications 3Fluid theory confirmed by Foton 2Glycominds Joins Biomolecular Photonic (BMP) Consortium to Develop New Molecular Imaging Technique 2
... This DuoSet ELISA Development kit contains the ... sandwich ELISAs to measure natural and recombinant ... supernates and serum. Each kit contains sufficient ... 96-well plates, provided that the following conditions ...
HIV-1 TAT (vN-21)...
Presenilin-1, N-terminus....
Request Info...
Biology Products: