Navigation Links
Clamorous city blackbirds
Date:1/11/2013

This press release is available in German.

Animals have developed a variety of strategies for dealing with increasing noise pollution in their habitats. It is known, for example, that many urban birds sing at a high pitch to differentiate their song from the low-frequency sound of road traffic. However, as scientists from the Max Planck Institute for Ornithology discovered, this is just a useful side effect. The real reason for this behaviour is that songs at a higher pitch are also automatically louder. The birds can make themselves heard far better in city noise by increasing the volume of their song than by raising its frequency.

Despite the numerous unfavourable environmental conditions they encounter there, many wild animals have colonised cities as a new habitat. In cities they must deal with greater numbers of humans and with more light and noise pollution than they encounter in rural settings. However, the urban habitat also offers certain advantages, for example a more abundant supply of food and new breeding options. Many animals have thus adapted surprisingly well to city life.

To attract mating partners and defend their territories, urban robins sing in the latter night when the traffic noise decreases after the evening rush. Many other bird species, including blackbirds, sing in urban environments at a higher pitch. So their song is easier to detect in the lower-frequency traffic noise.

However, as a group of scientists from the Max Planck Institute for Ornithology in Seewiesen and Radolfzell has discovered, this is just half the truth. They studied urban blackbirds in the city of Vienna and country blackbirds in the nearby Vienna Woods. Additionally, they raised birds by hand at the Max Planck Institute and investigated the correlations between the frequency and amplitude of their song under controlled conditions.
'/>"/>

Contact: Erwin Nemeth
enemth@orn.mpg.de
43-664-456-8191
Max-Planck-Gesellschaft
Source:Eurekalert  

Page: 1 2

Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Clamorous city blackbirds
(Date:4/27/2015)... ATLANTA , April 27, 2015  For more ... and trade show has been the premier worldwide event ... Systems 2015 is a must-attend event for any local, ... insight into the emerging commercial markets and current applications ... and innovations of this projected $48 billion industry, and ...
(Date:4/20/2015)... The announcement comes as demand for fire vault ... Ireland,s foremost records management company, has secured ... impressive track record of clients within the first 12 months, ... sector in Dubai . As a result, ... a further eight staff members at its Irish headquarters. The ...
(Date:4/13/2015)... 2015  higi, a leading cloud-based consumer engagement platform ... engage with their communities around health and wellness, announced ... secure API.  ... affordable, and convenient vehicle to receive validated health information ... The API will allow higi,s trusted partners, on ...
Breaking Biology News(10 mins):UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 2UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 3UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 4UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 5Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 2Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 3higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 2higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 3
... The University of Chicago Celiac Disease Center is hosting ... 22-25, 2013 in Chicago. The symposium is the largest ... The meeting, which follows the 2011 conference in Oslo, ... United States since 2006. The Chicago meeting seeks ...
... Paris, France, dedicated to improving human health through international ... grant award to a new global research network of ... Research Center at Icahn School of Medicine at Mount ... as part of the Fondation Leducq,s Transatlantic Networks of ...
... in a wide range of problems from arthritis to cardiovascular ... temper this problem. A new research report appearing in the ... , helps explain why DHA is important in reducing inflammation, ... will help bring people back to optimal health. Specifically, researchers ...
Cached Biology News:UChicago Celiac Disease Center to host international symposium 2Fondation Leducq awards $6 million grant for global research network for cardiac regeneration 2Fondation Leducq awards $6 million grant for global research network for cardiac regeneration 3Harvard and USC scientists show how DHA resolves inflammation 2
(Date:5/22/2015)... Charm Sciences, Inc. is pleased ... (USDA), Grain Inspection, Packers and Stockyards Administration (GIPSA) ... Sciences to monitor aflatoxin in grains utilizing Charm’s ... FAST Aflatoxin Quantitative Test (solvent-based). , The Charm ... Water Extraction Technology to extract aflatoxin from the ...
(Date:5/21/2015)... 2015 Seventh Wave Laboratories, a consulting-based ... of pharmaceutical products and medical devices, announced the purchase ... a 50,000 sq. ft. building more than three times ... growth. Facility renovations will begin immediately and the gradual ... occur in September. , “We are excited about ...
(Date:5/21/2015)... May 21, 2015 uBiome, the ... a partnership with PicnicHealth, a healthcare company that ... diagnosed with Inflammatory Bowel Disease (IBD) will receive ... complementary uBiome research kit. Both companies were funded ... , For more information on this partnership ...
(Date:5/21/2015)... Patent Offering, The patent’s technology pertains to ... imaging within a body lumen (open space). Known ... low cost, single-use disposable illumination and camera module (housing). ... 2013 and the patent approval was received on January ... customize the lighting and magnification of the endoscope for ...
Breaking Biology Technology:USDA-GIPSA (FGIS) Awards 5 Year Contract for Aflatoxin Tests to Charm Sciences 2Seventh Wave Laboratories Purchases Building for Expansion, Upcoming Move 2Seventh Wave Laboratories Purchases Building for Expansion, Upcoming Move 3uBiome Partners with PicnicHealth 2uBiome Partners with PicnicHealth 3IpAuctions™ Presents The Worlds Smallest Disposable Illuminated Endoscope For Auction 2IpAuctions™ Presents The Worlds Smallest Disposable Illuminated Endoscope For Auction 3
... ZURICH, Switzerland, November 4, 2011 Major ... in the treatment of patients with refractory ascites due ... University of Vienna and Vienna General Hospital (AKH Wien) ... the ALFApump System were performed at Vienna General Hospital ...
... Nov. 3, 2011 Cumberland Pharmaceuticals Inc. (NASDAQ: ... hospital acute care and gastroenterology markets, today announced third quarter ... the three months ended September 30, 2011, net revenue was ... period. The growth in net revenue was driven by an ...
... AUSTIN, Texas, Nov. 3, 2011 Vermillion, ... diagnostics company, has received a notice of allowance from the ... covering a combination of biomarkers that could be used in ... raises the risk of heart attack and stroke. ...
Cached Biology Technology:The Medical University of Vienna and Vienna General Hospital Perform the First two Commercial Implants Worldwide of Sequana Medical's ALFApump® System 2Cumberland Pharmaceuticals Reports Third Quarter 2011 Financial Results 2Cumberland Pharmaceuticals Reports Third Quarter 2011 Financial Results 3Cumberland Pharmaceuticals Reports Third Quarter 2011 Financial Results 4Cumberland Pharmaceuticals Reports Third Quarter 2011 Financial Results 5Cumberland Pharmaceuticals Reports Third Quarter 2011 Financial Results 6Cumberland Pharmaceuticals Reports Third Quarter 2011 Financial Results 7Cumberland Pharmaceuticals Reports Third Quarter 2011 Financial Results 8Cumberland Pharmaceuticals Reports Third Quarter 2011 Financial Results 9Cumberland Pharmaceuticals Reports Third Quarter 2011 Financial Results 10Cumberland Pharmaceuticals Reports Third Quarter 2011 Financial Results 11Cumberland Pharmaceuticals Reports Third Quarter 2011 Financial Results 12Vermillion Receives Notice of Allowance for 5th Biomarker Patent Related to Peripheral Artery Disease 2Vermillion Receives Notice of Allowance for 5th Biomarker Patent Related to Peripheral Artery Disease 3
Pendrin (H-195)...
... A thermostable, thermoactive designer enzyme that ... AccuRT RNA PCR enzyme allows reverse ... performed at elevated temperatures (65C), which ... the template and results in highly ...
HLA-DRbeta (DA2)...
Bovine Coronary Artery Endothelial Cells (BCAEC) (>500,000 cells)...
Biology Products: