Navigation Links
Dragonfly migration resembles that of birds, scientists say

Scientists have discovered that migrating dragonfliesand songbirds exhibit many of the same behaviors, suggesting the rulesthat govern such long-distance travel may be simpler and more ancientthan was once thought.

The research, published in the May 11 Biology Letters, is based on datagenerated by tracking 14 green darner dragonflies with radiotransmitters weighing only 300 milligrams -- about a third as much as apaper clip. Green darners are among the 25 to 50 species of dragonfliesthought to be migratory among about 5200 species worldwide.

The team of researchers that made the discovery, led by PrincetonUniversity's Martin Wikelski, tracked the insects for up to 10 days fromboth aircraft and handheld devices on the ground.They found that the dragonflies' flight patterns showed manysimilarities to those of birds that migrate over the same regions ofcoastal New Jersey.

"The dragonflies' routes have showed distinct stopover and migration days,just as the birds' did," said Wikelski, an associate professor ofecology and evolutionary biology. "Additionally, groups of both birds and dragonflies did not migrate on very windy days and only moved after two successivenights of falling temperatures. We saw other similarities as well, whichmakes us wonder just how far back in Earth's history the rules formigration were established in its animals."

According to fossil records, dragonflies appeared about 285 millionyears ago, predating the first birds by about 140 million years.

Wikelski said that the findings could also be an important demonstrationof how to track small animals over great distances, a technique thatcould be useful in agriculture and ecological management.

"These small transmitters could enable us to track animals from space all around the globe ifsatellites were available," Wikelski said. "Though nearly everyone hasheard of animal migration, we actually know very little about howanimals move. It could tell us a lot about the way speciesrespond to climate change and other disturbances. Becausethe economies of many nations are still largely agrarian, a betterunderstanding of how, say, locust swarms travel could assist us withmanaging both local agriculture and the world economy that hinges uponit."


'"/>

Source:Princeton University


Related biology news :

1. Dragonflys metabolic disease provides clues about human obesity
2. Vital step in cellular migration described by UCSD medical researchers
3. Butterfly migration could be largest known
4. Pair of cancer genes found to drive both cell migration and division
5. Leprosy genome tells story of human migrations, French researchers report in Science
6. Spring migration of pink-footed geese under threat
7. New analysis shows three human migrations out of Africa
8. Study reveals mass migration of mormon crickets driven by hunger, fear
9. A dichotomy in migration patterns found for sea turtles in east Atlantic
10. Research links protein to breast-cancer migration
11. Viral marker of human migration suspect
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/9/2016)... May 9, 2016 Elevay is ... to expanding freedom for high net worth professionals seeking ... today,s globally connected world, there is still no substitute ... ever duplicate sealing your deal with a firm handshake. ... by taking advantage of citizenship via investment programs like ...
(Date:4/26/2016)... LONDON , April 26, 2016 /PRNewswire/ ... Systems, a product subsidiary of Infosys (NYSE: ... partnership to integrate the Onegini mobile security platform ... http://photos.prnewswire.com/prnh/20151104/283829LOGO ) The integration ... security to access and transact across channels. Using ...
(Date:4/15/2016)... 2016 Research and Markets has ... Market 2016-2020,"  report to their offering.  , ... ,The global gait biometrics market is expected to ... period 2016-2020. Gait analysis generates multiple ... used to compute factors that are not or ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... 23, 2016 Houston Methodist Willowbrook Hospital ... Sports Association to serve as their official health ... Methodist Willowbrook will provide sponsorship support, athletic training ... association coaches, volunteers, athletes and families. ... Sports Association and to bring Houston Methodist quality ...
(Date:6/23/2016)... -- The Biodesign Challenge (BDC), a university competition that asks ... systems and biotechnology, announced its winning teams at the ... York City . The teams, chosen ... MoMA,s Celeste Bartos Theater during the daylong summit. Keynote ... of architecture and design, and Suzanne Lee , ...
(Date:6/23/2016)... ... ... STACS DNA Inc., the sample tracking software company, today announced that Dr. Hays ... DNA as a Field Application Specialist. , “I am thrilled that Dr. Young ... DNA. “In further expanding our capacity as a scientific integrator, Hays brings a wealth ...
(Date:6/23/2016)... Calif. , June 23, 2016  Blueprint Bio, ... biological discoveries to the medical community, has closed its ... Matthew Nunez . "We have received ... with the capital we need to meet our current ... essentially provide us the runway to complete validation on ...
Breaking Biology Technology: