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:7/27/2014)... new in vitro study has revealed that nicotine and ... damage caused by a certain carcinogen in smoke. , ... curing of tobacco leaves and ultimately ends up in ... the lung and liver, where it is activated by ... research in mice has revealed that nicotine can partially ...
(Date:7/27/2014)... have discovered a new species of mayfly in the southern ... India. In fact, this is the first time that any ... collected in peninsular India. , The new species, called ... Soldan for his substantial contribution to the understanding of the ... of a study that describes the new mayfly in the ...
(Date:7/27/2014)... at Barts Cancer Institute have found that targeting a ... more effective, according to research published in Nature ... part of Queen Mary University of London, have found ... the body to repair itself after chemotherapy or radiotherapy, ... researchers removed FAK from blood vessels that grew in ...
Breaking Biology News(10 mins):Nicotine found to inhibit DNA-strand break caused by a certain carcinogen in smoke 2New drug target can break down cancer's barrier against treatment 2
... the UN Conference on Climate Change (COP15) to be held ... to organise this conference as part of the run-up to ... try and capture some of the enormous research energy currently ... change. Thus, the focus of the conference is on providing ...
... of Southern California School of Dentistry researchers says it ... some people taking drugs that treat osteoporosis. Microbial ... are causing jaw tissue infections in patients taking bisphosphonate ... professor at the USC School of Dentistry. ...
... Stem cell researchers at UCLA were able to grow functioning ... into cells with the same unlimited properties as embryonic stem ... that induced pluripotent stem cells or iPS cells, which dont ... into the three types of cardiovascular cells needed to repair ...
Cached Biology News:USC School of Dentistry researchers uncover link between osteoporosis drugs and jaw infection 2UCLA stem cell researchers create heart and blood cells from reprogrammed skin cells 2UCLA stem cell researchers create heart and blood cells from reprogrammed skin cells 3
(Date:7/28/2014)... 28, 2014   Propeller Health , the FDA-cleared ... hire of Brad Towle as Senior Vice ... for driving the company,s sales growth, customer acquisition and ... and specifically his past role in the development of ... at this pivotal time in the industry," said ...
(Date:7/28/2014)... , July 28, 2014  InterMune, Inc. (NASDAQ: ... release its second quarter 2014 financial results at the ... 2014. A live conference call and webcast will be hosted ... day. Interested investors and others may participate ... +1 212-231-2900 (international), conference ID#21728775. A replay of the webcast ...
(Date:7/26/2014)... Canada Endoscopy Visualization Systems Market Outlook ... Canada Endoscopy Visualization Systems market. The report provides ... units) and average prices (in US dollars) within ... Endoscopy Visualization Systems and Low-End Endoscopy Visualization Systems. ... , The report also provides company shares and ...
(Date:7/25/2014)... by researchers from the University of Leicester has ... unlocking the potential to create new materials using ... been published in the prestigious academic journal ... technique to examine in rich detail the structure ... containing an acetylene molecule and a single helium ...
Breaking Biology Technology:Propeller Health Hires Brad Towle as Senior Vice President of Business and Client Development 2InterMune to Release Second Quarter Financial Results on August 6 2Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 2Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 3Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 4Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 5Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 2Breakthrough laser experiment reveals liquid-like motion of atoms in an ultra-cold cluster 3
... announces that a new market research report is ... Adds Global Top 10 Biotechnology Companies -- Industry, ... http://www.reportlinker.com/p0155124/Reportlinker-Adds-Global-Top-10-Biotechnology-Companies----Industry-Financial-and-SWOT-Analysis.html ... Companies Report: Strategic evaluation of industry and key ...
... October 16 , - New ... Brain Science and Used by the National Institutes of,Health, Will ... Elsevier, the leading publisher of scientific, ... showcase the new,features it is rolling out for its BrainNavigator ...
... Texas A team of scientists, led by a biomedical ... for the first time that mathematical models created ... correctly predict previously unknown cellular mechanisms. This brings biologists a ... control the inner workings of the cell as readily as ...
Cached Biology Technology:Reportlinker Adds Global Top 10 Biotechnology Companies -- Industry, Financial and SWOT Analysis 2Reportlinker Adds Global Top 10 Biotechnology Companies -- Industry, Financial and SWOT Analysis 3Reportlinker Adds Global Top 10 Biotechnology Companies -- Industry, Financial and SWOT Analysis 4Reportlinker Adds Global Top 10 Biotechnology Companies -- Industry, Financial and SWOT Analysis 5Elsevier's BrainNavigator Research Tool to Launch new Features at Neuroscience 2009 Show 2Elsevier's BrainNavigator Research Tool to Launch new Features at Neuroscience 2009 Show 3Elsevier's BrainNavigator Research Tool to Launch new Features at Neuroscience 2009 Show 4Elsevier's BrainNavigator Research Tool to Launch new Features at Neuroscience 2009 Show 5Scientists use math modeling to predict unknown biological mechanism of regulation 2
... Bruker Daltonics and Bruker BioSpins ... for metabolism studies, and analysis of ... ESI-TOF system, an optional Avance NMR ... acquisition, evaluation and statistical analysis for ...
... animal movements in a Morris Water Maze. ... a predefined sequence of trials.The Spatial Behavior line ... a video camera, frame grabber, and feature extraction ... once and up to 6 moving animals. ...
... Object Records behavior directed toward examining a novel ... a family of instruments all built around a ... and that can track two fields at once ... automatically extracts animal positions and records them, but ...
... Ultrapure ACS Reagent Grade C 19 H ... Weight: 691.95 PRODUCT SPECIFICATIONS Form: Powder Clarity ... pH 3.0 - Yellow pH ... tracking dye in agarose and acrylamide gel ...
Biology Products: