Navigation Links
Parents' social problems affect their children -- even in birds
Date:12/27/2010

It may come as a surprise to many that quails are able to distinguish one another, let alone that they form close relationships with other quails. Nevertheless, it has long been known that disruption of the birds' social environment causes them stress. A group within the UMR 6552 at the CNRS-Universit de Rennes 1 in France has been studying the influence of adults on the behavioural development of their offspring. Together with scientists in Austria, they have now shown that changing the composition of groups of quails housed together causes the birds to behave more aggressively towards one another. In parallel, the level of steroid hormones (corticosterone) in their blood increases when their group composition is disrupted.

Intriguingly, the eggs they lay were found to have significantly higher levels of testosterone when the mothers were subjected to social stress of this kind. The results are consistent with previous findings from other groups, which showed that House sparrows, American coots and Common starlings lay eggs with more testosterone when they breed in dense colonies than when they nest in isolation. But the new work from the French-Austrian collaboration goes considerably further, showing that the eggs of females under social stress hatch later and the chicks grow more slowly after hatching, at least for the first three weeks. There are also indications that the chicks' behave differently: they are more cautious and seem more susceptible to disturbance. Furthermore, they tend to move about more, which can be interpreted as increased attempts to escape from threats or to seek more social contact.

The results show how much the growth and behaviour of chicks is influenced by the concentrations of steroid hormones in the eggs from which they hatched. As Mstl says, "We know that stress on female mammals influences the development of their young, which takes place in the womb, but it was a big surprise that social stress cau
'/>"/>

Contact: Prof Erich Moestl
erich.moestl@vetmeduni.ac.at
43-650-725-0950
University of Veterinary Medicine -- Vienna
Source:Eurekalert

Page: 1 2

Related biology news :

1. Study recommends that parents, physicians share decisions in sex development disorder surgery
2. Penguin males with steady pitch make better parents
3. Doctors can influence when parents wean children from bottle, study finds
4. UNC study: Color-coded chart improves parents understanding of body mass index
5. Work conditions impact parents food choices
6. Social stress leads to atherosclerosis
7. Psychologists identify influence of social interaction on sensitivity to physical pain
8. Family ties bind desert lizards in social groups
9. Social support post-cancer lacking among minority women
10. Social ecology: Lost and found in psychological science
11. Engineering textbook promotes social justice
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2014)... of The Proceedings of the National ... 29, raises a number of startling questions about a ... take for granted. At the end of the last ... shifted from hunting animals and gathering fruits and tubers ... straightforward and yet the more scientists learn, the more ...
(Date:4/16/2014)... TALLAHASSEE, Fla. Florida State University researchers have identified ... deterioration of bone density and muscle mass with obesity. ... heavier you were the better your bones would be ... Ilich-Ernst, the Hazel Stiebeling Professor of Nutrition at Florida ...
(Date:4/16/2014)... Kennedy,s disease, spinal and bulbar muscular atrophy (SBMA) is a ... and atrophy. Researchers have long considered it to be essentially ... the spinal cord and brainstem that control muscle movement. , ... 2014 online issue of Neuron , a team of ...
Breaking Biology News(10 mins):Genetic study tackles mystery of slow plant domestications 2Genetic study tackles mystery of slow plant domestications 3Genetic study tackles mystery of slow plant domestications 4Researchers: Obesity can amplify bone and muscle loss 2Mutant protein in muscle linked to neuromuscular disorder 2
... A new study by researchers at NYU School of Medicine ... cells, causing mutations that can lead to melanoma. ... skin to protect it from the ultraviolet rays of the ... cells because they are unable to repair themselves as efficiently. ...
... been hearing about ESA,s most recently launched mission, CryoSat-2. ... in excellent health with scientists very encouraged by the ... Duncan Wingham, Lead Investigator for the CryoSat mission, stated, ... in-orbit specifications, the ground segment software is fine, the ...
... A new study from researchers in Ottawa and Toronto ... cell may be able to help treat sepsis, a deadly ... body. The study, published in the American Journal of ... can triple survival rates in an experimental model of sepsis. ...
Cached Biology News:UVA radiation damages DNA in human melanocyte skin cells and can lead to melanoma 2CryoSat-2 exceeding expectations 2Stem-cell therapy may provide new approach to fight infection 2
(Date:1/15/2014)... IL (PRWEB) January 15, 2014 Look ... find hard-working items for the lab, from fluid handling ... Guaranteed-in-Stock (GIS)—ready to ship when you order. , ... Peristaltic Pumps , from the L/S® model for precise ...
(Date:1/15/2014)... This webinar will focus on EMA and ... in biosimilars. , Regulatory frameworks are evolving many countries ... the complex nature of biopharmaceuticals makes the demonstration of ... challenging. Based on the specific aspects of biosimilar drug ...
(Date:1/15/2014)... January 15, 2014 The Microcompetition with Foreign ... disease. One of these latent viruses is the Epstein Barr ... (RA). Rheumatoid arthritis (RA) is a chronic inflammatory disease that ... study found that RA patients have high concentrations of EBV ...
(Date:1/15/2014)... AudioNotch is the internet's leading provider of ... of tinnitus. Patients listen to sound therapy that is ... of weeks to months, their tinnitus volume decreases. , AudioNotch ... Music and Notched White Noise. Now, AudioNotch is pleased to ...
Breaking Biology Technology:Cole-Parmer Begins 2014 with the Release of Preferred Solutions 2Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3
... ATLANTA, Dec. 11 WellCentive ( http://www.wellcentive.com ),today ... information technology (HIT),solutions designed to efficiently, securely and ... care providers. WellCentive Gateway allows,providers, such as ... variety of,outside HIT systems. WellCentive Connect is ...
... Peregrine Pharmaceuticals, Inc. (Nasdaq: PPHM ) today announced that ... passed away on Wednesday. Dr. Waltz had been a director ... the time of his death, Dr. Waltz served on Peregrine,s Audit ... , "The sudden loss of our business colleague ...
... - SCRIP Awards Recognises the Best and Brightest in ... - Glenmark is the Only Indian Company to ... The best and brightest of ... London at the 2008 SCRIP Awards hosted,by the leading UK broadcaster ...
Cached Biology Technology:WellCentive Launches New Health Information Exchange Platforms 2WellCentive Launches New Health Information Exchange Platforms 3Peregrine Pharmaceuticals Mourns Loss of Chairman Thomas A. Waltz 2SCRIP, the Leading Pharmaceutical Magazine in the World Crowns Glenmark as the "Best Pharma Company in the World - SME" and the "Best Company in Emerging Markets" at the SCRIP Awards 2008 in London 2
cysteine and glycine-rich protein 2,...
BKBeta2 potassium channel Antigen: Fusion protein amino acids 1-41 (N-terminus) and 218-235 (C-terminus) of mouse BKBeta2 Accession Number: Q9CZM9...
Anti-CD74 Monoclonal Antibody Description: 200 l Research Focus: cell surface antigens Storage: 4C Shipping Temperature: 4C...
Gap junction protein, beta 2, 26kDa (connexin 26) Antigen: Peptide...
Biology Products: