Navigation Links
Wild sparrow study traces social behaviors in the field to specific gene
Date:1/14/2014

ed up his family and left Atlanta for Argyle, Maine, to tag birds for the study and spend weeks observing their behaviors in a forest.

White-throated sparrows nest on the ground under shrubs or low in trees. They are one of the most common birds seen in the forest and at suburban bird feeders. Their distinctive song is often likened to the phrase, "Old Sam Peabody Peabody Peabody."

To measure parental behaviors in the birds, Horton recorded the number of feeding trips they made for their young during a specified time. To measure aggression, he recorded their song rate in response to a simulated territorial intrusion: A live sparrow in a cage was displayed in the breeding territory of the wild study subjects, accompanied by the broadcast of a male song.

"The song of the birds is a form of aggression," Horton explains. "They're saying 'get out of my territory.' The rate at which they sing gives a measure of their level of aggression."

The field observations were followed by laboratory analyses of the study subjects, to hone in on differences in their neuroendocrine gene expression.

The researchers focused on ER-alpha as a primary candidate, since it is one of the genes captured by the chromosome inversion and had been previously linked to social behaviors in vertebrates.

Their analyses documented how the genetic differentiation between the morphs affects the transcription of ER-alpha. In one brain region thought to be important for aggression, white-striped birds had three times the level of ER-alpha than did the tan-striped birds. By looking at both the behavioral data and the lab data together, the researchers found the expression of ER-alpha in that region and others predicted variation in territorial aggression and parenting.

"The behaviors that differ between the morphs are known to rely on sex steroid hormones such as testosterone," Maney says. "But we already showed in 2009 that even when their t
'/>"/>

Contact: Beverly Clark
beverly.clark@emory.edu
404-712-8780
Emory Health Sciences
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. New technology tracks sparrow migration for first time from California to Alaska
2. Get off my lawn: Song sparrows escalate territorial threats - with video
3. USF researchers show invasive sparrows immune cells sharpen as they spread
4. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
5. Law that regulates shark fishery is too liberal: UBC study
6. New study will help protect vulnerable birds from impacts of climate change
7. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
8. BYU study: Using a gun in bear encounters doesnt make you safer
9. 15-year study: When it comes to creating wetlands, Mother Nature is in charge
10. Pycnogenol (French maritime pine bark extract) shown to improve menopause symptoms in new study
11. Crystal structure of archael chromatin clarified in new study
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/18/2014)... for evaluation of suspected genetic conditions, whole-exome sequencing ... including detection of a number of rare genetic ... to a study appearing in JAMA . ... the American Society of Human Genetics annual meeting. ... regions of thousands of genes simultaneously using next-generation ...
(Date:10/17/2014)... Researchers from the University of Copenhagen have shown for ... the lungs of Cystic fibrosis patients, giving them the ... growth in chronic infections. , The study also discovered ... fibrosis (CF) patients was halted or slowed down by ... consumed all the oxygen and helped "suffocate" the bacteria, ...
(Date:10/16/2014)... a new synthesis of recent research findings to inform ... the two states. , The Ecology and Management ... A Synthesis of the Relevant Biophysical Science and Implications ... by the U.S. Forest Service,s Pacific Northwest Research Station, ... for a synthesis of the large body of scientific ...
Breaking Biology News(10 mins):Whole-exome sequencing shows potential as diagnostic tool 2Scientists opens black box on bacterial growth in cystic fibrosis lung infection 2New report synthesizes best available science on management of moist mixed-conifer forests 2
... gene responsible for the single most common cause of ... for the first time, a scientist told the annual ... Nice, France. Ms Melissa Thys, from the Department of ... finding may be a step towards new treatments for ...
... familiar with potato late blight, the plant disease responsible ... has the potential to be as devastating to economies ... The American Phytopathological Society (APS). , According to ... Plant Sciences Department at the University of Wyoming, Laramie, ...
... could not maintain their existence without thousands of proteins ... can cause disease, the study of protein structure and ... treatments for numerous disorders. For example, the discovery of ... development of a treatment based on insulin injections. Yet, ...
Cached Biology News:Gene responsible for common hearing loss identified for first time 2Potato wart eyed as risk to potato production 2Weizmann Institute scientists develop a general 'control switch' for protein activity 2Weizmann Institute scientists develop a general 'control switch' for protein activity 3
(Date:10/20/2014)... 2014 Convey Computer , the ... from Iowa State University won first place in the ... Convey HC-2ex, the team’s solution achieved the highest overall ... the second place finisher. , Experts from all segments ... month long challenge, using a variety of design tools, ...
(Date:10/20/2014)...  GenVec, Inc. (NASDAQ: GNVC ) today announced ... its board of directors effective on October 24, 2014.   Dr. ... as its chairman from June 2006 to November 2013.  During ... Governance and Audit Committees of the board.  ... dedicated service to GenVec, and its stockholders," said Wayne ...
(Date:10/20/2014)... OR (PRWEB) October 20, 2014 Local ... participate in an investigational study of donor stem cells ... in stem cell therapy and has performed clinical stem ... this study is to determine if a single injection ... affected joints can help reduce pain and inflammation in ...
(Date:10/19/2014)... 19, 2014 The Asia-Pacific Bromine ... in Asia-Pacific with analysis and forecast of revenue. ... Pacific Bromine Market report, to get an idea ... a glimpse of the segmentation in the Asia-Pacific ... and figures. , http://www.micromarketmonitor.com/market/asia-pacific-bromine-6741503144.html , ...
Breaking Biology Technology:Team 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 3Zola P. Horovitz To Retire From GenVec Board 2Cascade Veterinary Referral Center Seeks Candidates for an Investigational Study of Stem Cells for Dogs with Arthritis 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 3
... Pharmaceutical Institute, the leading provider of specialized ... and a subsidiary of Campbell Alliance, today announced ... Excellence® Account Management Suite of e-courses.  The ... managed care account managers by addressing high-priority topics ...
... pairs the individual molecules that make up DNA ... medicine. Being able to isolate, study and sequence these ... therapies and treatments based on each patient,s individual genetic ... molecules like DNA base pairs, which are just two ...
... (OTC Bulletin Board: BIOR ), producer of ... disposal, announced today the Canadian Intellectual Property Office has ... Streamway System "for disposing of liquid surgical waste for ... the Company in April of 2011. Chad ...
Cached Biology Technology:Account Management Training Suite Delivers Two Key Performance Dimensions 2Particle trap paves way for personalized medicine 2BioDrain Medical, Inc. Granted Canadian Patent for its Streamway® Surgical Fluid Management System 2BioDrain Medical, Inc. Granted Canadian Patent for its Streamway® Surgical Fluid Management System 3
Sf21 Insect Cells (Live) in Max-XP Medium...
... The BioGenex Super ... System is a novel ... proprietary non-biotin polymeric technology. ... high signal to noise ...
Artisan™ Wash Solution (x 50) Additional Information: EU regulatory status: CE US regulatory status: IVD ...
MiniCycler thermal cycler with Hot Bonnet heated lid, holds 25x0.2ml tubes...
Biology Products: