Navigation Links
How monarch butterflies are wired for navigation

In their extraordinary annual migration from North America to Mexico, monarch butterflies are known to use the angle of polarized sunlight as a celestial guide to help them keep to a straight and true path southward. But details of their navigational machinery have remained a mystery.

Now, researchers, led by Steven Reppert of University of Massachusetts Medical School, Ivo Sauman of the Czech Academy of Sciences and Adriana Briscoe of the University of California at Irvine, have explored the infinitesimal butterfly brain to uncover new insights into that machinery. Their findings show that the same ultraviolet light that has become an anathema to cancer-wary humans is critical for butterfly navigation. Also, the researchers were surprised to discover a key wiring connection between the light-detecting navigation sensors in the butterfly's eye and the creature's circadian clock--a critical link if the butterflies are to compensate for the time of day in using their "sun compass."

The researchers' techniques include molecular analysis of butterfly brain proteins, as well as flight tests in which the scientists manipulated the light reaching their insect subjects and measured the navigational response.

In their studies, the researchers discovered that ultraviolet photoreceptors dominated in the region of the butterfly visual system known to specialize in polarized light detection. To confirm that the butterflies, indeed, required ultraviolet polarized light to navigate, the researchers tested the insects in a "flight simulator," in which they could control the light polarization and thus influence the butterflies' direction of flight. The researchers found that when they placed a UV-interference filter over the polarized light source, the butterflies lost their orientation response.

The researchers also pinpointed the location of the circadian clock in the butterfly brain. Such circadian clocks govern the approximately 24 hour activity a
'"/>

Source:Cell Press


Page: 1 2

Related biology news :

1. In the migratory marathon, parasitized monarchs drop out early
2. Expanding forests darken the outlook for butterflies, study shows
3. Female butterflies go for sparkle -- not size -- when choosing to mate
4. Where have all the butterflies gone?
5. Some butterflies travel farther, reproduce faster
6. Male-killing bacteria makes female butterflies more promiscuous
7. The brain is broadly wired for reproduction
8. How taste response is hard-wired into the brain
9. Animal brains hard-wired to recognize predators foot movements, Queens study suggests
10. Is the brain wired for faces?
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: How monarch butterflies are wired for navigation

(Date:8/18/2015)... PRINCETON, N.J. , Aug. 18, 2015 ... be a key contributor to the Submission ... hosted by IRISS, a non-profit forum. Dedicated to ... IRISS provides a neutral platform for industry, ... to share information and work towards a ...
(Date:8/12/2015)... Aug. 12, 2015   MedNet Solutions , an ... spectrum of clinical research, is proud to announce that ... comprehensive SaaS-based eClinical technology platform, has led the way ... two quarters of 2015.   Q2 2015 and Q1 ... measured by contract value sold in the company,s 15 ...
(Date:8/12/2015)... Aug. 12, 2015  Synaptics Inc. (NASDAQ: ... solutions, today announced that four of its fingerprint ... have officially been named FIDO Certified™ by the ... the certification, Synaptics, Natural ID™ fingerprint solutions are ... Framework (UAF) standard and are interoperable among other ...
Breaking Biology News(10 mins):Navitas, a Key Contributor in IRISS Forum Webinar 2Navitas, a Key Contributor in IRISS Forum Webinar 3MedNet Solutions Experiences Explosive Corporate Growth 2Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 2Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 3
... , June 4, 2013  With invasions of computer systems ... Identify Security Software Inc. ( www.identifyss.com ) today announced ... http://photos.prnewswire.com/prnh/20130604/FL25436LOGO ) "Identify Security Software ... way for businesses and institutions to manage and control ...
... and NEW ORLEANS , June 3, 2013 ... Microsoft demonstrates an FPC fingerprint touch sensor in combination with a ... demonstrations showcase a number of innovative online use cases using FPC,s ... to sign on to their Microsoft account, make online payments and ...
... the Duke-NUS Graduate Medical School (Duke-NUS) in Singapore has ... protein linked to stem cell-like behavior in terminal-stage chronic ... that may extend the survival of these patients. ... Proceedings of the National Academy of Sciences , is ...
Cached Biology News:Identify Security Software to Make Cyberspace Secure 'Once And For All' 2Identify Security Software to Make Cyberspace Secure 'Once And For All' 3Fingerprint Cards (FPC) Demonstrates Fingerprint Biometric Touch Sensor for Microsoft Windows 8.1 2Singapore research team identifies new drug target in deadly form of leukemia 2
(Date:8/31/2015)... Israel , Aug. 31, 2015 ... Dario™ Diabetes Management Solution, today announced it recently ... million. Funds will be used to support the ... the Dario, a mobile, cloud-based, diabetes management solution ... stylish, ,all-in-one, pocket-sized, blood glucose monitoring device, and ...
(Date:8/31/2015)... ... August 31, 2015 , ... There’s a new treatment option ... the first commercially available new FDA approved system in the last 14 years, and ... the high Amenorrhea (zero bleeding) rate of 66%, the high Patient Satisfaction rate of ...
(Date:8/28/2015)... 2015 According to a new ... Storage Systems, Thawing Equipment, Alarms), by Biospecimen (Human Tissue, ... End User - Global Forecast to 2020", published by ... USD 3,731.03 Million by 2020 from USD 2,150.48 Million ... 2015 and 2020. Browse 74 Tables ...
(Date:8/28/2015)... ... 2015 , ... Riordan-McKenna Institute founders, stem cell ... the use of sterile, dehydrated amniotic tissue AlphaPATCH™ developed by Amniotic Therapies ... knee wound. , The case involved a 78-year-old male, who presented with a ...
Breaking Biology Technology:LabStyle Innovations Closes $2.5 Million Funding to Support Global Rollout of Dario Diabetes Management Solution 2LabStyle Innovations Closes $2.5 Million Funding to Support Global Rollout of Dario Diabetes Management Solution 3LabStyle Innovations Closes $2.5 Million Funding to Support Global Rollout of Dario Diabetes Management Solution 4U.S. FDA Approves Minerva Endometrial Ablation System 2U.S. FDA Approves Minerva Endometrial Ablation System 3Biopreservation Market Worth 3,731.03 Million USD by 2020 2Biopreservation Market Worth 3,731.03 Million USD by 2020 3Biopreservation Market Worth 3,731.03 Million USD by 2020 4Biopreservation Market Worth 3,731.03 Million USD by 2020 5Dallas-Fort Worth Stem Cell Researchers Use Amniotic Tissue To Successfully Treat Non-Healing Surgical Wound 2Dallas-Fort Worth Stem Cell Researchers Use Amniotic Tissue To Successfully Treat Non-Healing Surgical Wound 3Dallas-Fort Worth Stem Cell Researchers Use Amniotic Tissue To Successfully Treat Non-Healing Surgical Wound 4
... At a meeting of the,Board of ... ), held today, a dividend of ... outstanding shares of Preferred Stock was,declared ... stockholders of record at the close,of ...
... Aida,Pharmaceuticals, Inc. (OTC Bulletin Board: AIDA) today announced ... ended September 30, 2007. Net,revenues totaled $7,373,770 for the ... period in 2006. Gross profit decreased by 2.66% due ... sales from Aida,s,transfusion and injection forms of etimicin sulfate ...
... Million Financing, WOBURN, Mass., Nov. 15 BioVex ... the treatment and,prevention of cancer and infectious disease, announced ... the completion of a,venture debt transaction, raising a total ... the capital to complete its preparations for, and,to commence, ...
Cached Biology Technology:Aida Files 10Q 2Aida Files 10Q 3Aida Files 10Q 4BioVex Closes Second Round of Series E Financing 2
Sheep polyclonal to hCG beta core fragment ( Abpromise for all tested applications). Antigen: Full length native protein (purified) from human urine. Entrez GeneID: 1082 Swiss Protein ID...
Evolutionarily conserved signaling intermediate in Toll pathway...
Anti-MMP-25 (Membrane-type MMP-6, Mt6MMP), hinge region; rabbit host...
Anti-MMP-25 (Membrane-type MMP-6, Mt6MMP), hinge region; rabbit host...
Biology Products: