Navigation Links
For young birds, getting stressed out can be a good thing
Date:8/13/2012

CORVALLIS, Ore. Many studies have found that high levels of hormones that are associated with stress are a sign of poor fitness and reduced chance of survival but recent research on young songbirds found that some elevated hormones can be a good thing, often the difference between life and death.

The new research concluded that elevated levels of glucocorticoid hormones, which are part of the natural response to stress, were related to the movement, feeding, and anti-predator behaviors of juvenile birds.

The findings were made by researchers at Oregon State University with the Swainson's thrush as an animal model.

There's only about a one-in-three chance that juveniles of this bird species will survive, the study found, and it appeared to have more to do with their stress hormones than other factors such as vegetative cover or nesting site.

"In these birds, a little stress and elevated stress hormones were associated with greater survival," said James Rivers, a researcher with the OSU Department of Forest Ecosystems and Society. "The conventional wisdom is that elevated levels of glucocorticoid hormones are bad for survival, but we found just the opposite."

"Stress is more complex than we think," he said.

The hormones associated with stress, which include cortisol in humans, can change the behavior and physiology of animals. If stress is too persistent and the hormone levels remain consistently too high, it appears to impede growth. But especially at vulnerable stages where the task is to keep up with the parents, get enough food to grow, or flee a predator, higher levels of stress hormones appear to improve survival chances.

This was one of the first studies of its type done in small songbirds, researchers said. Some previous research had suggested that increased hormone levels can allocate resources away from normal activities and have long-term health impacts.

The research was publish
'/>"/>

Contact: James Rivers
541-737-6581
Oregon State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Teaching about hearing can save young peoples ears
2. Young researcher taking fight against global killer to the next level in Vietnam
3. Young Scientist Award for Socio- and Econophysics 2012 for Arne Traulsen
4. Live fast, die young
5. SEBM Young Investigator Awards for 2012
6. Bigger gorillas better at attracting mates and raising young
7. Breast cancer in young women: A distinct disease
8. Michael J. Fox Foundation grant to Dr. Samuel Young will provide Parkinsons drug development tools
9. The millennium-old olive trees of the Iberian Peninsula are younger than expected
10. Top young Latin-American scientists named Pew Biomedical Fellows
11. New review outlines screening strategies for osteoporosis in young adults
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2015)... China , 31 de julio de 2015 /PRNewswire/ ... Genómica (ICG-10,  www.icg-10.org ) del 22 al 25 de ... . La conferencia celebra su décimo aniversario ... ha convertido en una de las reuniones anuales más ... y es una de las conferencias científicas más dinámicas, ...
(Date:7/31/2015)... OXFORD, Conn. , Jul. 31, 2015 NXT-ID, ... a biometric authentication company focused on the growing mobile ... announces that it has filed provisional patent 62/198989 for ... This invention highlights a method to advance crypto-currencies ... technology by introducing a common, uniform way to manage ...
(Date:7/23/2015)... Aware, Inc. (NASDAQ: AWRE ), a leading supplier of ... second quarter ended June 30, 2015.  Revenue ... decrease of 33% compared to $6.8 million in the same ... 2015 was $0.3 million, or $0.01 per diluted share, which ... the same period a year ago.  Lower ...
Breaking Biology News(10 mins):La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 3NXT-ID Patents Electronic Crypto-Currency Management Technology 2NXT-ID Patents Electronic Crypto-Currency Management Technology 3NXT-ID Patents Electronic Crypto-Currency Management Technology 4Aware, Inc. Reports Second Quarter 2015 Financial Results 2Aware, Inc. Reports Second Quarter 2015 Financial Results 3Aware, Inc. Reports Second Quarter 2015 Financial Results 4Aware, Inc. Reports Second Quarter 2015 Financial Results 5Aware, Inc. Reports Second Quarter 2015 Financial Results 6
... of thousands of albatrosses and other far-ranging seabirds are killed ... Innovative new models developed by a Duke University-led research team ... where and when birds and boats are likely to cross ... data to predict changing conditions such as sea surface ...
... of ancient enzymes adapted to substantial changes in ocean ... providing evidence that life on Early Earth evolved from ... less acidic global environment that exists today. The ... as thioredoxin were chemically stable at temperatures up to ...
... Researchers at the University of Massachusetts Medical School ... protein IFT88 in mitosis, the process by which a ... into two identical sets of new daughter cells. Published ... this newly discovered function for IFT88 suggests a possible ...
Cached Biology News:New models may reduce seabird bycatch 2Protein adaptation shows that life on early earth lived in a hot, acidic environment 2Protein adaptation shows that life on early earth lived in a hot, acidic environment 3Protein adaptation shows that life on early earth lived in a hot, acidic environment 4Researchers identify new role for cilia protein in mitosis 2
(Date:7/30/2015)... ATLANTA , July 30, 2015 ... leaders to the 2015 AACC Annual Meeting & ... from July 26–30. The meeting showcased revolutionary ... improves the ability of healthcare providers to diagnose ... get effective medical treatment. As ...
(Date:7/30/2015)... ... July 30, 2015 , ... ... Francois Vieillard as Sales & Marketing Director. , With more than 25 ... be responsible for reinforcing Tronics’ business development activities worldwide. He brings to the ...
(Date:7/30/2015)... VANCOUVER, Washington , July 30, 2015 ... "Biosimulation Market, by Product (Software, Molecular Modeling, PB/PK, PKPD, ... (Drug Discovery & Development, Preclinical, Clinical Trial), by End ... the Biosimulation Market is expected to reach USD 2,107.99 ... at a CAGR of 15.29%. Browse ...
(Date:7/30/2015)... KANSAS CITY, Kan. , July 30, 2015 ... PETX ), a pet therapeutics company focused on ... products for companion animals, today announced that its ... results from a dose confirmation study of AT-016, ... to Aratana for the treatment of osteoarthritis pain ...
Breaking Biology Technology:Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 3Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 4Tronics appoints Francois Vieillard as Sales and Marketing Director 2Biosimulation Market Worth 2,107.99 Million USD by 2020 2Biosimulation Market Worth 2,107.99 Million USD by 2020 3Biosimulation Market Worth 2,107.99 Million USD by 2020 4Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 2Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 3Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 4Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 5
... - In the aftermath of a critical state ... development work being done by the state's Certified Capital Companies. ... Investors Management, LLC , said the findings of the ... picture of the work being done by the so-called CAPCOs, ...
... Allis, Wis. - Merge Technologies Inc. , ... under the name Merge Healthcare, said it has received a ... warning that the company remains subject to delisting after ... failure to timely file its report for the quarter ended ...
... generation of high-performance wireless communication devices could rely on ... of Wisconsin-Madison . , ,But these are no ordinary ... technology 14 years in the making, are examining a ... the tiny electromechanical systems into which it could be ...
Cached Biology Technology:Venture capitalist defends Wisconsin CAPCOs 2Venture capitalist defends Wisconsin CAPCOs 3Nano-diamond film studied at UW could advance telecommunications 2Nano-diamond film studied at UW could advance telecommunications 3
Improve inventory management with stainless steel red cell canisters; ensure product safety with CO2 or LN2 backup systems. A complete solution for your blood banking needs....
... 135 S steam sterilizers with their ultra-flat steam ... of a double-walled device - low energy consumption, ... by built-in jacket heater - with those of ... is free of furnishings and feed water and ...
... SuperScript™ II RNase H- Reverse Transcriptase (RT) ... RNase H- RT. It is a DNA ... from single-stranded RNA DNA or an RNA:DNA ... the introduction of point mutations rather than ...
Request Info...
Biology Products: