HOME >> BIOLOGY >> NEWS
'Stress and the city': Urban birds keep cool

Animals colonizing cities are exposed to many novel and potentially stressful situations. Chronic stress, however, can cause deleterious effects. Hence, wild animals would suffer from city life unless they adjusted their stress response to the conditions in a city. Jesko Partecke, Ingrid Schwabl and Eberhard Gwinner of the Max Planck Institute for Ornithology Andechs/Seewiesen in Germany have now shown that European blackbirds born in a city have a lower stress response than their forest counterparts. This reduced reactivity probably has a genetic basis and could be the result of the urban-specific selection pressures to which urban blackbirds are exposed (Ecology 87(8) 2006).

Many species have developed a symbiotic relationship with humans. For example, European blackbirds, European starlings and house sparrows thrive in concrete habitats around the globe. The sparrow is now so closely associated with man that its original niche is unknown, whereas the European blackbird was - as little as 200 years ago - a reclusive forest dweller. These species seem to profit, for instance, by the warmer microclimate and additional anthropogenic food supply in cities. However, they are also confronted with many novel and potentially stressful anthropogenic disturbances, such as the permanent presence of humans, higher densities of cats and dogs, noise and light pollution as well as traffic.

Among the physiological coping mechanisms used by vertebrates - including humans - to ensure survival under adverse environmental conditions is the acute stress response, characterised by the release of glucocorticoid steroid hormones. The acute short-term secretion of these hormones is considered beneficial in that it helps to mediate adaptive behavioural and physiological responses. In prolonged stress situations, however, chronically elevated levels of circulating glucocorticoids can impair reproductive, immune, and brain functions. Thus, wild animals would suffer from
'"/>

Contact: Dr. Jesko Partecke
partecke@orn.mpg.de
49-815-237-3130
Max-Planck-Gesellschaft
1-Sep-2006


Page: 1 2 3

Related biology news :

1. Urban sediments after Hurricanes Katrina, Rita contained high levels of contaminants
2. Urbanization favors sedentary males
3. Urban Wildlife Management book something to crow about
4. On the loose: Urban coyotes thrive in North American cities
5. Urban ecology study witnessing the birth of a designer ecosystem
6. Art and music for the birds
7. What determines the speed at which birds fly?
8. Brightly colored birds most affected by Chernobyl radiation
9. Aphids make chemical weapons to fight off killer ladybirds
10. Study investigates divorce among Galapagos seabirds
11. Duetting birds with rhythm present a greater threat

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Stress and the city Urban birds keep cool

(Date:2/9/2015)... 9, 2015  Lintec of America recently announced an ... nanotube (CNT) macrostructures, including sheets, yarns and ribbons, developed ... Leveraging the vast industrial resources of the global ... , Lintec of America is forming the Nano-Science and ... , focusing on scaling up the manufacturing and commercialization ...
(Date:2/5/2015)... Conn. , Jan. 26, 2015 NXT-ID, Inc. ... the "Company"), a biometric authentication company focused on the ... new corporate website ( http://www.nxt-id.com/ ) as part of ... smart wallet. The Company launched its new consumer website ... Gino Pereira , CEO of NXT-ID said, "Our new ...
(Date:2/5/2015)... Research and Markets ( http://www.researchandmarkets.com/research/6lngtl/global_biometrics ... "Global Biometrics Market (2014-2020): Market Forecast By Technologies, ... to their offering. , In ... is anticipated to overtake North America ... spending towards IT security, government biometric based projects ...
Breaking Biology News(10 mins):Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 2Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 3Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 4NXT-ID, Inc. Launches New Corporate Website As Part Of Ongoing 2015 Branding Initiatives For Wocket Smart Wallet 2NXT-ID, Inc. Launches New Corporate Website As Part Of Ongoing 2015 Branding Initiatives For Wocket Smart Wallet 3Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 2Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 3
(Date:3/4/2015)... 4, 2015  BioClinica®, Inc., a leading ... today announced that clinical trial professionals representing ... its annual European User Conference in ... the use of its eClinical technologies to ... include: the Microsoft Office-Smart OnPoint CTMS; Express ...
(Date:3/4/2015)... 2015 Launched by the ... in December 2011, ,SARAH, - the French ... versus sorafenib in advanced hepatocellular carcinoma (HCC) has enrolled ... SARAH, a large French study of patients ... HCC) has completed patient enrolment, exceeding its 400-patient target, ...
(Date:3/3/2015)... TORONTO, March 3, 2015 /PRNewswire/ - Aptose Biosciences Inc. ... therapeutics and molecular diagnostics that target the underlying mechanisms ... and seventh-month period ended December 31, 2014. ... year end from May 31 to December 31. As ... reporting today are for the quarter and the seven ...
(Date:3/3/2015)... 03, 2015 Experts and industry insiders ... one event: the Alltech REBELation exploring innovation, inspiration and ... Now in its 31st year, Alltech’s annual international conference ... and the opportunity to join the REBELation at an ... 11:59 p.m. EST, at which point the standard early ...
Breaking Biology Technology:BioClinica Teams With Pharma To Tackle Clinical Trial Challenges In Europe 2BioClinica Teams With Pharma To Tackle Clinical Trial Challenges In Europe 3Treatment of Primary Liver Cancer: SARAH Study Completes Enrolment, Results Expected Late 2016 2Treatment of Primary Liver Cancer: SARAH Study Completes Enrolment, Results Expected Late 2016 3Treatment of Primary Liver Cancer: SARAH Study Completes Enrolment, Results Expected Late 2016 4Treatment of Primary Liver Cancer: SARAH Study Completes Enrolment, Results Expected Late 2016 5Aptose Biosciences reports results for the quarter and seven months ended December 31, 2014 2Aptose Biosciences reports results for the quarter and seven months ended December 31, 2014 3Aptose Biosciences reports results for the quarter and seven months ended December 31, 2014 4Aptose Biosciences reports results for the quarter and seven months ended December 31, 2014 5Aptose Biosciences reports results for the quarter and seven months ended December 31, 2014 6Aptose Biosciences reports results for the quarter and seven months ended December 31, 2014 7Aptose Biosciences reports results for the quarter and seven months ended December 31, 2014 8Aptose Biosciences reports results for the quarter and seven months ended December 31, 2014 9Aptose Biosciences reports results for the quarter and seven months ended December 31, 2014 10Aptose Biosciences reports results for the quarter and seven months ended December 31, 2014 11Aptose Biosciences reports results for the quarter and seven months ended December 31, 2014 12World-renowned Leaders, Authors and Businesspeople Join the Alltech REBELation 2World-renowned Leaders, Authors and Businesspeople Join the Alltech REBELation 3World-renowned Leaders, Authors and Businesspeople Join the Alltech REBELation 4
Cached News: