Navigation Links
'Get off my lawn:' Song sparrows escalate territorial threats - with video
Date:2/12/2013

Territorial song sparrows use increasingly threatening signals to ward off trespassing rivals. First an early warning that matches the intruder's song, then wing waving a bird's version of "flipping the bird" as the dispute heats up, and finally, if all other signals have failed, attack.

This hierarchical warning scheme, discovered by researchers at the University of Washington, adds nuance to a communication system that has been long-used as a model to study how people use and learn language

"This is one of the most complicated communication systems outside of human language," said lead author ağlar Akay, who did the study as a UW graduate student. He is now a postdoctoral researcher at Cornell University.

"Here we find that if a sparrow matches the intruder's song as the intruder invades his territory, this almost always predicts that he will eventually attack the intruder," Akay said.

The study, published online this month in Proceedings of the Royal Society B, is the first evidence that song-matching is used as an early warning signal. Previous studies had hinted, but had not clearly established, that song-matching is a threat signal.

"We succeeded here because we recognized that song-matching is an early warning signal," said co-author Michael Beecher, a UW professor of psychology. "We designed our experiment to simulate an escalating intrusion by another song sparrow, so that our subject would begin with low-level threat signals before switching to higher-level threat signals."

A male song sparrow (Melospiza melodia) will defend his territory against any male song sparrow that intrudes. He has a repertoire of eight to 10 songs that he uses to attract mates, post his territory, communicate with neighbors, and, as in the newest study, threaten an intruder.

The researchers recorded songs from 48 sparrows living in Discovery Park in Seattle. To feign an intruder, they perched a st
'/>"/>

Contact: Molly McElroy
mollywmc@uw.edu
206-543-2580
University of Washington
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Climate warming unlikely to cause near-term extinction of Amazon trees, but threats remain
2. Texas Biomed reports faster, more economical method for detecting bioterror threats
3. Crows react to threats in human-like way
4. UMass Amherst biochemists developing tools to stop plague and other bacterial threats
5. Heightened Security Threats and Economic Issues Provide Fillip to Global Civil and Military Biometrics Market, Says Frost & Sullivan
6. EPA to highlight innovative ways to detect and respond to biological threats
7. New American Chemical Society video highlights 5 of chocolates sweet benefits
8. Graduate student video on sequestration wins prize
9. 60th anniversary of NSF Grad Research Fellowship Program; UM fellow Staatermans video recognized
10. Medbox, Inc. Releases Demo Video and Collateral Media Concerning How Their Systems Will Be Used in Massachusetts Medical Marijuana Dispensaries
11. Feature package of Congo Basin forest photos, stories & videos
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/19/2014)... over the last 30 years contributed only marginally ... that time, according to a new study published ... "Energy access is fundamental to development: it brings ... communication, and health," says IIASA researcher Shonali Pachauri, ... access is widely agreed to be an important ...
(Date:10/17/2014)... in German . ... day in order to reproduce? And why are there two ... the latest issue of the research journal Molecular Human ... Steven Ramm from Bielefeld University Bielefeld has compiled this special ... for a female to copulate with several males in quick ...
(Date:10/16/2014)... new synthesis of recent research findings to inform their ... two states. , The Ecology and Management of ... Synthesis of the Relevant Biophysical Science and Implications for ... the U.S. Forest Service,s Pacific Northwest Research Station, is ... a synthesis of the large body of scientific information ...
Breaking Biology News(10 mins):Improved electricity access has little impact on climate change 2Sperm wars 2New report synthesizes best available science on management of moist mixed-conifer forests 2
... MILWAUKEE What determines plant diversity in a forest? ... But most research into forest diversity demonstrates only patterns ... for them until now. A team of ... (UWM) has shown that soil-borne pathogens are one important ...
... there was German measles. Ten years before the ... be a focus of Senate confirmation questions for Supreme Court ... the biggest part in starting to shift public attitudes about ... Reagan says in a new book. Where abortion had ...
... fish for a living pursue top profits, not necessarily top ... economic data for the past 55 years. This differs from ... down" the food web. It was assumed that catches of ... as halibut and tuna, were declining after fishers started landing ...
Cached Biology News:Soil-borne pathogens drive tree diversity in forests, study shows 2Epidemic played large role in shift of attitudes on abortion, author says 2Epidemic played large role in shift of attitudes on abortion, author says 3Industry fishing for profits, not predators 2Industry fishing for profits, not predators 3
(Date:10/22/2014)... DUBLIN , Oct. 22, 2014 ... "Organic Electronics Market by Material, by Application, Geography ... report to their offering. Organic electronics, ... a branch of material science which deals with small ... as organic because small molecules and polymers are carbon ...
(Date:10/20/2014)... The report “Pharmacy Automation Systems Market by product ... Table-top Counters) by End-user (Inpatient Pharmacy Automation, Outpatient ... 2019” analyzes and studies the major market drivers, ... and the Rest of the World (RoW). , ... through 300 pages and in-depth TOC on "Pharmacy ...
(Date:10/20/2014)... Convey Computer , the leader in ... State University won first place in the 2014 ... the team’s solution achieved the highest overall performance in ... place finisher. , Experts from all segments of the ... challenge, using a variety of design tools, hardware and ...
(Date:10/20/2014)... - BIOREM Inc. (TSXV: BRM) ("Biorem" or "the Company") today announced ... $5.8 million and provides a good start to Q4.  The orders ... and one in the Middle East ... levels," said Peter Bruijns , President & CEO. "Total bidding ... than they have been for any complete year since the company ...
Breaking Biology Technology:Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 2Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 3Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 2Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 3Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 4Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 2Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 3
... Mass., Feb. 10, 2011 Qteros, Inc., ... Bioprocessing (CBP) platform for the lowest-cost production ... engagements across the United States and Europe for members ... Qteros, Senior Vice President, Commercial Development and Engineering, will ...
... Feb. 10, 2011 Vanda Pharmaceuticals Inc. (Vanda) (Nasdaq: ... the development and commercialization of products for central nervous ... the fourth quarter and full year ended December 31, ... year in the history of our company.  Our first ...
... tiny wires called Nanonets with iron oxide known more ... for the process of water splitting, an emerging clean fuel ... in the online edition of the Journal of the ... Wang and his clean energy lab pioneered the development of ...
Cached Biology Technology:Qteros Management to Present at Notable Alternative Energy Conferences in February 2Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Results 2Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Results 3Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Results 4Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Results 5Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Results 6Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Results 7Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Results 8Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Results 9Vanda Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Results 10Nanonets give rust a boost as agent in water splitting's hydrogen harvest 2
... HISTAR detection systems provide linking and ... with species specific primary antibodies for ... Visualisation is accomplished using an ultra-sensitive ... polymer labelling technology. Secondary antibodies are ...
... Enzyme concentration - 5 units/µL ,• High ... yields ,• Leaves an 'A' overhang ,• ... which exhibits very high activity in primer ... ensure the quality of the enzyme, each ...
... from Thermus aquaticus expressed in E. coli; ... of 250 units enzyme/tube and Buffer I ... the same enzyme as AmpliTaq DNA Polymerase ... separation process to ensure that contaminating bacterial ...
Our original highly-purified, robust Taq Polymerase which delivers consistently high yields and minimal background...
Biology Products: