Navigation Links
How pigeons may smell their way home
Date:11/5/2013

Homing pigeons, like other birds, are extraordinary navigators, but how they manage to find their way back to their lofts is still debated. To navigate, birds require a 'map' (to tell them home is south, for example) and a 'compass' (to tell them where south is), with the sun and the Earth's magnetic field being the preferred compass systems. A new paper provides evidence that the information pigeons use as a map is in fact available in the atmosphere: odours and winds allow them to find their way home. The results are now published in Biogeosciences, an open access journal of the European Geosciences Union (EGU).

Experiments over the past 40 years have shown that homing pigeons get disoriented when their sense of smell is impaired or when they don't have access to natural winds at their home site. But many researchers were not convinced that wind-borne odours could provide the map pigeons need to navigate. Now, Hans Wallraff of the Max Planck Institute for Ornithology in Seewiesen, Germany, has shown that the atmosphere does contain the necessary information to help pigeons find their way home.

In previous research, Wallraff collected air samples at over 90 sites within a 200 km radius around a former pigeon loft near Wrzburg in southern Germany. The samples revealed that the ratios among certain 'volatile organic compounds' (chemicals that can be a source of scents and odours) in the atmosphere increase or decrease along specific directions. "For instance, the percentage of compound A in the sum A+B or A+B+C+D increases the farther one moves from north to south," Wallraff explains.

These changes in compound ratios translate into changes in perceived smell. But a pigeon that has never left its loft does not know in what directions what changes occur unless it has been exposed to winds at its home site.

At home, a bird is th
'/>"/>

Contact: Bárbara Ferreira
media@egu.eu
49-892-180-6703
European Geosciences Union
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Mutant gene responsible for pigeons head crests
2. Genetic engineering alters mosquitoes sense of smell
3. Making whole wheat bread taste and smell more appetizing
4. The smell of white
5. Ah, that new car smell: NASA technology protects spacecraft from outgassed molecular contaminants
6. Psychopaths have an impaired sense of smell
7. The nose knows: Gene therapy restores sense of smell in mice
8. The birdy smell of a compatible partner
9. NIH-funded researchers restore sense of smell in mice using genetic technique
10. Cant smell anything? This discovery may give you hope
11. Smell the potassium
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/21/2014)... newborn immune T cells may have the ability to ... new study led by King,s College London. Although their ... babies may still be able to mount a strong ... Nature Medicine . , Our immune system is ... including neutrophils which play an important role in the ...
(Date:9/19/2014)... unveiled today by researchers from several Harvard University ... both experienced and aspiring researchers with the intellectual ... robots made from soft, flexible materials. , With ... and other advances in manufacturing technology, soft robotics ... principles drawn from conventional rigid robot design, but ...
(Date:9/19/2014)... species which over thousands of years has adapted to the ... that makes the cold dangerous for you. , This is ... and the cold provoking substance, called nonylphenol, comes from the ... suspected of being a endocrine disruptor, but when entering the ... ability to protect the cells in its body from cold ...
Breaking Biology News(10 mins):Immune system of newborn babies is stronger than previously thought 2Soft robotics 'toolkit' features everything a robot-maker needs 2Environmental pollutants make worms susceptible to cold 2Environmental pollutants make worms susceptible to cold 3
... to act cancerous, surviving, growing and reproducing out of ... characteristics to stop growing or to die. In breast ... sometimes promoting tumors and sometimes suppressing them. A ... the journal Oncogene details how tumors may ...
... of Texas at Austin researchers have demonstrated a new ... the heart and limbs a research advancement that ... disease, the leading cause of death in the Western ... of Engineering Assistant Professor Aaron Baker could allow doctors ...
... available in German . The Deutsche ... four new Research Units. This decision was taken by the ... of the research consortia is to offer researchers the opportunity ... and to establish innovative research directions. As with ...
Cached Biology News:Study details on-off switch that promotes or suppresses breast cancer 2New ability to regrow blood vessels holds promise for treatment of heart disease 2New ability to regrow blood vessels holds promise for treatment of heart disease 3DFG to establish 4 new research units 2DFG to establish 4 new research units 3
(Date:9/22/2014)... , September 22, 2014 ... on a mixed note as the Dow Jones Industrial ... Composite closed at 4,579.79, down 0.30%. The S&P 500 ... trading session, six out of ten sectors finished on ... Index ended the day at 751.48, up 0.10%, with ...
(Date:9/22/2014)... 2014  Spherix Incorporated (SPEX) -- an intellectual property development ... today announced that the United States Patent & Trademark Office ... month of September that is part of a standard essential ... USRE45,121 , Application number: US 13/728,867 , ... 27, 2012 The listed inventors of the ...
(Date:9/21/2014)... Chemical Sciences play a significant role in meeting ... safe water, healthy food, and dependable medicine from ... educators, and scientists have a great role in ... for the national development, and to foster research ... emerging Sciences, accelerating with a tremendous speed to ...
(Date:9/20/2014)... 20, 2014 MediVet America ... a groundbreaking surgery at the specialized Wolvega Horse Clinic. ... digital flexor tendon was ruptured 90% and her deep ... is a death sentence for a horse. , The ... cell treatments . This revolutionary regenerative option for ...
Breaking Biology Technology:Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 2Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 3Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 4Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 5Spherix Notified by United States Patent & Trademark Office of New Standard Essential Patent Issued to Spherix 2Spherix Notified by United States Patent & Trademark Office of New Standard Essential Patent Issued to Spherix 3Chemistry for Global Development during the Open Access Week 2Chemistry for Global Development during the Open Access Week 3World’s first tendon replacement using Nanofiber and activated MediVet Stem Cell Fraction 2World’s first tendon replacement using Nanofiber and activated MediVet Stem Cell Fraction 3
... 24 Huntsman Advanced Materials, a division ... announced it was awarded the JEC Award for innovative ... Huntsman received the award for the innovative use of ... with its US-based customer GrafTech International.Andre Genton, President of ...
... S.A. and,Solvay Pharmaceuticals Marketing and Licensing AG (subsidiary ... partnership agreement for the,promotion and distribution of Stallergenes ... of Independent States (CIS). , ... and a strong demand on the,part of the ...
... than 80% of Nearly 4,000 Participants Attend InformexUSA ... Chemical IndustryPRINCETON, N.J., March 24 In a ... the United States -- InformexUSA -- visitors affiliated ... said they remain on the look-out for new ...
Cached Biology Technology:Huntsman Innovation Wins Top Award at Paris JEC Show 2Stallergenes Signs an Exclusive Partnership Agreement With Solvay Pharmaceuticals for the Promotion and Distribution of its Products in Russia and the CIS* 2Stallergenes Signs an Exclusive Partnership Agreement With Solvay Pharmaceuticals for the Promotion and Distribution of its Products in Russia and the CIS* 3Informex Survey Shows Innovation Remains a Priority for 2009 and Beyond 2Informex Survey Shows Innovation Remains a Priority for 2009 and Beyond 3
Rabbit polyclonal to Aortic Elastin ( Abpromise for all tested applications). entrezGeneID: 2006 SwissProtID: P15502...
Anti-gp120/160(SIV/mac239) Immunogen: gp120(SIV/mac239) protein (Genebank accession #M33262)...
Tropomyosin 4 [Tm4]...
...
Biology Products: