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:

(Date:10/29/2015)... 29, 2015  Connected health pioneer, Joseph C. ... of technology-enabled health and wellness, and the business opportunities ... The Internet of Healthy Things . Long ... even existed, Dr. Kvedar, vice president, Connected Health, Partners ... delivery, moving care from the hospital or doctor,s office ...
(Date:10/29/2015)... NEW YORK , Oct. 29, 2015 /PRNewswire/ ... wearable technology, announced a partnership with 2XU, a ... accessories, to deliver a smart hat with advanced ... runners and other athletes to monitor key biometrics ... of the strategic partnership, the two companies will bring ...
(Date:10/27/2015)... -- Munich, Germany , October ... automatically maps data from mobile eye tracking videos created ... that they can be quantitatively analyzed with SMI,s analysis ... , October 28-29, 2015. SMI,s Automated Semantic Gaze ... tracking videos created with SMI,s Eye Tracking Glasses ...
Breaking Biology News(10 mins):
(Date:11/27/2015)... , ... November 27, 2015 , ... ... that includes over 2,000 technical presentations offered in symposia, oral sessions, workshops, ... applied spectroscopy, covers a wide range of applications such as, but not limited ...
(Date:11/26/2015)... , England , November 26, 2015 /PRNewswire/ ... Medical, an innovative medical device company specializing in imaging technologies, ... from the European Commission as part of the Horizon 2020 ... company to carry out a large-scale clinical trial in breast ...      (Logo: , --> ...
(Date:11/25/2015)... , November 25, 2015 2 nouvelles ... fois les différences entre les souches bactériennes retrouvées ... des êtres humains . Ces recherches  ouvrent ... envisager la prise en charge efficace de l,un ... chez les chats .    --> 2 ...
(Date:11/25/2015)...  Neurocrine Biosciences, Inc. (Nasdaq: NBIX ) announced ... of Neurocrine Biosciences, will be presenting at the 27th ... York . .   ... minutes prior to the presentation to download or install ... be available on the website approximately one hour after ...
Breaking Biology Technology: