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:4/17/2014)... the Cell Press journal Current Biology on ... novel sex lives. The Brazilian insects, which represent four ... , are the first example of an animal with ... identified in several different animals, Neotrogla is ... also reversed," says Kazunori Yoshizawa from Hokkaido University in ...
(Date:4/17/2014)... are chock full of wild animals and plant life, ... fungi are churning away in the soil, decomposing organic ... the vital role these fungi play in ecological systems, ... team of scientists has generated a genetic map of ... The work was published this week in the ...
(Date:4/17/2014)... about domestication derive from Charles Darwin, whose ideas ... practices during the 19th century, a period when ... It is from Darwin that we inherit the ... from wild species and total human control over ... in this industrial setting has been applied too ...
Breaking Biology News(10 mins):In sex-reversed cave insects, females have the penises 2Stanford biologists help solve fungal mysteries 2Stanford biologists help solve fungal mysteries 3The story of animal domestication retold 2The story of animal domestication retold 3The story of animal domestication retold 4
... dependent on the sun. Sunlight does not only supply ... So-called photoreceptors activate the processes of germination, leaf development, ... component of a photoreceptor may be replaced by a ... effects on complete plants are now described in the ...
... a study about to be published in EPJ E, French ... the behaviour of a thin layer of cells in contact ... fluid or elastic films. Understanding the mechanism by which a ... the layer,s structural integrity, bears great significance because the human ...
... release is available in Spanish . , Due ... region, many experts have claimed that they are millennia old but ... explained to SINC by the ecologist Bernat Claramunt from the Centre ... from this centre has now analysed the ages of the famous ...
Cached Biology News:The millennium-old olive trees of the Iberian Peninsula are younger than expected 2
(Date:1/15/2014)... , Jan. 15, 2014  Bill Jacobs Automotive, a group of ... teaming up with the Heartland Blood Center and offering free ... The drive takes place Saturday, Jan. 18 at the Bill ... p.m. (Photo: http://photos.prnewswire.com/prnh/20140115/MN46637 )  The ...
(Date:1/15/2014)... 2014 Cynvenio, a cancer diagnostics company ... genomic analysis of tumor cells in the bloodstream, today ... cancer decision support application powered by CollabRx, Inc. ... genomic test, Therapy Finder will provide breast cancer patients ...
(Date:1/15/2014)... 15, 2014 A study has been launched ... Formula 1 track could help to tackle the problem of ... Stowhealth (a GP surgery based in Stowmarket) and academics at ... Telemetry technology, which is inspired by equipment used ...
(Date:1/15/2014)... 15, 2014 DTS Language Services, Inc ... Web Portal for Life Science organizations who need document translations. ... subject matter of their documents in advance with a selection ... time-to-delivery of translations, often a critical factor in clinical and ...
Breaking Biology Technology:Join the Bill Jacobs Auto blood drive and receive a free oil change 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4DTS Improves Efficiency for Life Science Document Translations 2
... proven cost-effective, Genomatica looks to develop demonstration plant ... Genomatica, a sustainable chemicals company, announced today that ... milestone toward the production of commercial grade 1,4-butanediol ... The company has demonstrated that it can ...
... Inc. (Nasdaq: MITI ), a biopharmaceutical company developing novel, ... today announced that it will host a webcast on June 8, ... 6th at the 14th Congress of the European Hematology Association. ... www.micromet-inc.com . , , Forum: ...
... Lexicon Pharmaceuticals, Inc. (Nasdaq: LXRX ... vice president, corporate development and chief financial officer. Mr. ... biotechnology and pharmaceutical industry in corporate finance, corporate and business ... , Prior to joining Lexicon, Mr. Bansal was chief financial ...
Cached Biology Technology:Genomatica Produces Pure BDO From Natural Sugars 2Genomatica Produces Pure BDO From Natural Sugars 3Genomatica Produces Pure BDO From Natural Sugars 4Micromet to Host Conference Call and Webcast to Discuss Blinatumomab Data Presented at EHA on June 8, 2009 2Micromet to Host Conference Call and Webcast to Discuss Blinatumomab Data Presented at EHA on June 8, 2009 3Micromet to Host Conference Call and Webcast to Discuss Blinatumomab Data Presented at EHA on June 8, 2009 4Lexicon Names Ajay Bansal Executive Vice President and Chief Financial Officer 2Lexicon Names Ajay Bansal Executive Vice President and Chief Financial Officer 3
RABBIT ANTI SRC-RSV...
SHEEP ANTI FLECAINIDE...
MOUSE ANTI HUMAN B-CELLS (FMC7):FITC Immunogen: HRIK cells - Human B-Lymphoblastoid line...
... use in refrigerators, freezers, or liquid nitrogen. Conveniently sized ... for color coding to project, user, lab, etc. Holes ... cool air circulation. Supplied with 10 x 10 (11.6 ... Box dimensions: 13 x 13 x 5.1 cm H ...
Biology Products: