Navigation Links
Chubby birds get there faster
Date:2/17/2010

Small migratory birds, like the garden warbler, must make stopovers on their journeys to their breeding grounds. When they have crossed extensive ecological barriers, such as deserts or oceans, they must land to replenish their fat reserves. A researcher from the Max Planck Institute for Ornithology in Seewiesen and a team of Italian colleagues measured the duration of the stopovers made by garden warblers on an island off the Italian coast. There they observed that fat birds usually move on the night of their arrival, while thin birds interrupt their journey for an average of almost two days (Biology Letters, February 17, 2010).

While pockets of flab accumulated over the winter months may be a source of frustration for some, it can be a cause of joy for others: "Fat garden warblers can make shorter stops to replenish their fat reserves on the taxing annual journey to their breeding grounds," reports Wolfgang Goymann of the Max Planck Institute for Ornithology in Seewiesen. The research results have shown that the duration of a bird's stopover is not only influenced by environmental factors, such as wind and weather conditions, or a genetically-programmed internal urge: subcutaneous fat stores are the main factor behind the varying durations of the stopovers made during avian migration.

The researchers fitted ten fat birds and ten lean birds that landed on the Italian island of Ventotene in the morning on route to the north with temporary adhesive radio transmitters. They then monitored, at regular intervals, whether the signal emitted by the transmitters could still be heard on the island. Nine out of the ten fat birds flew on the same night; the lean birds, however, remained on the island for an average duration of 40 hours before resuming their journey. "We assume that the majority of the birds arrived on the island the morning we caught them," says Wolfgang Goymann. "However, even if this were not the case, our data clearly revealed
'/>"/>

Contact: Wolfgang Goymann
goymann@orn.mpg.de
Max-Planck-Gesellschaft
Source:Eurekalert

Page: 1 2

Related biology news :

1. Overweight mums have chubby bubs
2. Savanna habitat drives birds, and perhaps others, to cooperative breeding
3. Uncertainty drives the evolution of cooperative breeding in birds
4. A dog in the hand scares birds in the bush
5. City birds better than rural species in coping with human disruption
6. Do migratory birds see the magnetic field?
7. LSU professor studies army-ant-following birds
8. Time-sharing tropical birds key to evolutionary mystery
9. Lavishly illustrated guide to Perus birds describes 1,800 species
10. Threatened birds may be rarer than geographic range maps suggest
11. Siberian jays can communicate about behavior of birds of prey
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... are athletes who have suffered concussions ready to return ... found that high school athletes who head back on ... a significant regression in their abilities to simultaneously walk ... seen in changes in their balance and/or altered walking ... of the 12 had returned to activity in less ...
(Date:8/20/2014)... Tech,s Wu Feng has built upon a National Science ... the Cloud" program, and synergistically complemented it with subsequent ... Air Force on "big computing" for mini-drones and a ... of Health on "big data" for the life sciences. ... from each grant, he was able to tell a ...
(Date:8/20/2014)... developed by researchers at the University of Missouri School ... a life-threatening heart condition caused by muscular dystrophy. ... Lai, Ph.D., the leading author of the study and ... Department of Molecular Microbiology and Immunology. "This is just ... to a treatment for people with this devastating heart ...
Breaking Biology News(10 mins):Recovery reversal seen in Oregon study of returning concussed athletes 2Recovery reversal seen in Oregon study of returning concussed athletes 3The internet was delivered to the masses; parallel computing is not far behind 2The internet was delivered to the masses; parallel computing is not far behind 3The internet was delivered to the masses; parallel computing is not far behind 4Gene therapy protects mice from lethal heart condition, MU researchers find 2
... good health. Like plants that thrive in the sun, we ... production of vitamin D. In the past few decades, however, ... fear of the potential dangers of UV radiation and the ... environments centered on virtual reality, we are all spending much ...
... World Water Day on Sunday, 22 March aims to ... drinking water on our planet. In a densely populated ... ever before. Helmholtz scientists in the research field ... these problems. In cooperation with partners from other countries ...
... Writings at Stevens Institute of Technology will host "Ravens at ... by Bernd Heinrich, on Wednesday, April 1, 2009. The event ... 4 p.m. to 5:30 p.m. The journalist Bill McKibben ... he,s a great writer, period." A professor emeritus of biology ...
Cached Biology News:The sunlight solution for better health 2The sunlight solution for better health 3Research to secure a safe water supply 2Research to secure a safe water supply 3Research to secure a safe water supply 4
(Date:8/19/2014)... IRVINE, Calif. (PRWEB) August 19, 2014 ... Indiegogo campaign to raise $200,000 to fund a ... diagnostic device. , This development is a ... one-size-fits-all model of care to the implementation of ... patient-centric method of practicing medicine. , Indiegogo contributions ...
(Date:8/19/2014)... Aug. 19, 2014 CSSi, the leader in ... announced the formation of the company,s Medical and Clinical ... addition of Dr. William E. Gannon, Jr. ... The MCAB, with Dr. Gannon,s ... therapeutic areas and set strategic goals for the advancement ...
(Date:8/18/2014)... Dallas, Texas (PRWEB) August 19, 2014 ... China Linalool Industryā€¯ is a professional and in-depth ... report provides basic Linalool information, including its ... well as industry overview. This research covers the ... well as global industry analysis covering macroeconomic environment ...
(Date:8/18/2014)... NYElectronic devices with unprecedented efficiency and data ... that use built-in electric polarizations to read ... inside most popular data-driven technology. But ferroelectrics ... blocks, including a curious habit of "forgetting" ... the U.S. Department of Energy,s Brookhaven National ...
Breaking Biology Technology:Cellgen Diagnostics Launches Indiegogo Crowdfunding Campaign for DNA Medical Testing Device 2Cellgen Diagnostics Launches Indiegogo Crowdfunding Campaign for DNA Medical Testing Device 3CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 2CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 3Linalool Industry & Diphenylamine Market (Global, China) 2014 Analysis Now Available at DeepResearchReports.com 2Linalool Industry & Diphenylamine Market (Global, China) 2014 Analysis Now Available at DeepResearchReports.com 3Linalool Industry & Diphenylamine Market (Global, China) 2014 Analysis Now Available at DeepResearchReports.com 4Promising ferroelectric materials suffer from unexpected electric polarizations 2Promising ferroelectric materials suffer from unexpected electric polarizations 3Promising ferroelectric materials suffer from unexpected electric polarizations 4
... Management Form Company ... Podiatry Markets, FAIRFIELD, N.J., May 13 Medimetriks ... led by the founder and the key Senior Management ... will develop, license and,commercialize innovative prescription products for the ...
... 13 /PRNewswire-FirstCall/ - AEterna Zentaris Inc.,(NASDAQ: ... company focused on,endocrine therapy and oncology, today ... 2 study of subcutaneously,administered LHRH antagonist cetrorelix ... has been accepted for publication in an,upcoming ...
... SAN DIEGO and TUCSON, Ariz., May 12 ,University-affiliated ... creating opportunities for sustainable development and,innovation within economies ... in La Jolla on June 16 to share ... maximizing the effectiveness of parks,specializing in biotechnology development., ...
Cached Biology Technology:Medimetriks Pharmaceuticals, Inc. Begins Operations 2AEterna Zentaris: Article on Phase 2 Trial with Cetrorelix in BPH to be Published in European Urology Journal 2AEterna Zentaris: Article on Phase 2 Trial with Cetrorelix in BPH to be Published in European Urology Journal 3AEterna Zentaris: Article on Phase 2 Trial with Cetrorelix in BPH to be Published in European Urology Journal 4AEterna Zentaris: Article on Phase 2 Trial with Cetrorelix in BPH to be Published in European Urology Journal 5AEterna Zentaris: Article on Phase 2 Trial with Cetrorelix in BPH to be Published in European Urology Journal 6University Research and Science Parks Create Sustainable Innovation 2
...
The LIC Duet™ Mini Adaptor encodes a T7 promoter, lac operator, ribosome binding site (rbs), and an ATG translation initation codon. This adaptor is designed for expression of a target protei...
Mouse monoclonal antibody to QARS - glutaminyl-tRNA synthetase...
ABgene® supplies a 94kDa ultra-pure recombinant thermostable DNA polymerase obtained by high level expression of the Taq DNA polymerase gene in E. coli....
Biology Products: