Navigation Links
Herons persist in Chicago wetlands despite exposure to banned chemicals
Date:1/16/2008

e come to shore to spawn when the first warm waters of spring run into the lake and the temperature starts to rise, he said. There are untold millions of these things along the (Lake Michigan) shore in April.

On several occasions the researchers saw large numbers of night-herons in some cases a hundred birds or more along the sea walls on the southwest shore of Lake Michigan, Levengood said. Theyd be standing there peering into the water, and then theyd kind of do a belly flop into the water and grab a fish.

The researchers collected data over two years and conducted several genetic, biochemical and reproductive analyses to determine whether the chemical exposures were adversely affecting the birds. They looked at DNA strand length (a measure of genetic damage) and oxidative stress (a contributor to aging and disease) and compared the number of eggs and the viability of the eggs and young chicks to those in other, less polluted reference colonies of black-crowned night-herons in Minnesota and Virginia.

These were all normal compared to the reference colonies, Levengood said.

The team found no evidence of eggshell-thinning, which is sometimes associated with exposure to DDE.

So thats the good news: Even though theyre getting an exposure, its not enough to cause problems at least in those parameters we measured, Levengood said.

The researchers did see an increase in some liver enzymes, he said, but thats not unexpected because the liver is trying to detoxify these compounds. The long-term consequences of the rise in these liver enzymes are unknown, he said.

Populations of black-crowned night-herons in the Lake Calumet wetlands have fluctuated dramatically in the last 20 years, peaking at more than 1,500 birds in the early to mid-1990s. This population increase coincided with prolonged flooding in nearby rivers, which may have disadvantaged these short-legged herons, Levengood said.

Birders
'/>"/>

Contact: Diana Yates
diya@uiuc.edu
217-333-5802
University of Illinois at Urbana-Champaign
Source:Eurekalert  

Page: 1 2 3

Related medicine news :

1. Investigators uncover intriguing clues to why persistent acid reflux sometimes turns into cancer
2. Comment Regarding Congregation for the Doctrine of Faith Clarification Concerning Nutrition and Hydration for Patients in a Persistent Vegetative State
3. Chronic infection persists by targeting stromal cell network in lymphoid organs
4. Statin Benefits Persist After Treatment Stops
5. Pursuing parenthood: Discourses of persistence
6. Meniscal damage and the development of persistent knee pain
7. Want to Raise a Fruit-and-Veggie Lover? Be Persistent
8. Miscarriage myths persist despite prevalence of medical information
9. Women persist in plastic surgery treatments that are not working, research says
10. Racial disparities persist in cancer care
11. Childrens Memorial Hospital in Chicago Announces $100 Million Gift from Philanthropist Ann Lurie
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Herons persist in Chicago wetlands despite exposure to banned chemicals
(Date:7/25/2014)... Angeles, CA (PRWEB) July 25, 2014 In ... talk about, and eager to reverse the symptoms associated with ... in the media at large, a new case study ... real benefits of testosterone therapy using bioidentical hormones. ... a 38-year-old father from Seattle who found himself beginning to ...
(Date:7/25/2014)... 2014 A federal judge has denied ... DePuy Pinnacle hip lawsuits ( http://www.depuypinnacle-lawsuit.com/ ) selected ... to go before a jury on September 1, 2014, ... July 18th, U.S. District Judge Ed Kinkeade of the ... claims may proceed to trial against Johnson & Johnson, ...
(Date:7/25/2014)... (PRWEB) July 25, 2014 Ticket ... across the board for the Guinness International Champions Cup ... Olympiacos FC at Soldier Field on Sunday, July ... their customer appreciation promo/coupon/offer code SOCCER-2014 for added savings. ... year for diehard soccer fans in North America. Countless ...
(Date:7/25/2014)... (GSA) the nation,s largest interdisciplinary organization devoted ... Heather M. Young, PhD, RN, FAAN, of the ... of the Doris Schwartz Gerontological Nursing Research Award. ... Sciences Section, is given to a member of ... contribution to gerontological nursing research. , The award ...
(Date:7/25/2014)... Reproductive Science Center (RSC) of New ... Luzzo, Lead Physician at RSC Rhode Island, received the ... in fertility care and community outreach issued by Providence ... PBN Awards ceremony held July 24th at Salve Regina ... highly regarded, emerging leaders in their field were recognized ...
Breaking Medicine News(10 mins):Health News:New Case Study Highlights Effectiveness of Testosterone Therapy in Fighting Weight Gain and Fatigue 2Health News:New Case Study Highlights Effectiveness of Testosterone Therapy in Fighting Weight Gain and Fatigue 3Health News:First Federal DePuy Pinnacle Hip Lawsuits Headed for Trial, As Judge Denies Defense Motions For Dismissal, Summary Judgment, Bernstein Liebhard LLP Reports 2Health News:First Federal DePuy Pinnacle Hip Lawsuits Headed for Trial, As Judge Denies Defense Motions For Dismissal, Summary Judgment, Bernstein Liebhard LLP Reports 3Health News:First Federal DePuy Pinnacle Hip Lawsuits Headed for Trial, As Judge Denies Defense Motions For Dismissal, Summary Judgment, Bernstein Liebhard LLP Reports 4Health News:Liverpool FC vs. Olympiacos FC Tickets Soldier Field: Ticket Down Slashes Ticket Prices for Guinness International Champions Cup in Chicago on Sunday, July 27th 2Health News:Young earns GSA's 2014 Doris Schwartz Gerontological Nursing Research Award 2Health News:Dr. Kerri Luzzo of the Reproductive Science Center of Providence Receives “40 Under Forty Award" for Outstanding Professional Accomplishments and Community Outreach 2
... Imaging Ltd.,(the "Company") (Nasdaq: EMITF ), today announced ... the trustee for the holders of the,Series A, B ... the "Notes",respectively), that due to the signing of a ... Co., the controlling shareholder of,the Trustee, and Brightman, Almagor ...
... stopping infection , , TUESDAY, April 29 (HealthDay News) -- Most ... virus itself, but new research suggests that focusing on the ... because human cells mutate at much slower rates than does ... mutating around the drug, scientists explained. , The research is ...
... is available in German . , Leipzig. ... the Czech Republic and Poland did not so far lead ... Central Europe, there are other reasons for the presence of ... are the findings of a research project conducted by the ...
... Scientists at Johns Hopkins have outlined a new path ... and asthma based on a new understanding of the ... cavities. , Researchers say their findings, to be ... Allergy and Clinical Immunology, are the first evidence describing ...
... 29 Baptist Health System, one,of Alabama,s largest ... Group to bring together the health-improvement,needs of local ... at its four hospitals. Aegis brings nearly 20 ... services with the unique,healthcare needs of area employees., ...
... Success, NEW YORK, April 29 Flashpoint ... of the Omnicom Group,(NYSE: OMC ), was ... Medical,Advertising News at the publication,s annual Manny Awards ... by innovative thinking, powerful creative, and a,collaborative approach ...
Cached Medicine News:Health News:Elbit Imaging Ltd. Announces Termination of Service of Trustee for Holders of Series A, B and C Notes 2Health News:Elbit Imaging Ltd. Announces Termination of Service of Trustee for Holders of Series A, B and C Notes 3Health News:Researchers Tackle HIV From a New Angle 2Health News:Researchers Tackle HIV From a New Angle 3Health News:Shrinkage and aging are Europe-wide challenges 2Health News:Shrinkage and aging are Europe-wide challenges 3Health News:Shrinkage and aging are Europe-wide challenges 4Health News:Immune system kick-started in moist nasal lining in sinusitis, asthma and colds 2Health News:Immune system kick-started in moist nasal lining in sinusitis, asthma and colds 3Health News:Alabama's Baptist Health System and Aegis Health Group Partner to Address Local Employers Health-Management Concerns 2Health News:Flashpoint Medica Named Agency of Year by Medical Advertising News 2
(Date:7/25/2014)... PORT OF SPAIN, Trinidad and Tobago , ... Drugs Division of the Trinidad & Tobago Ministry ... the market, an innovative therapy that significantly increases the ... indicated for patients infected with the genotype 1 ... under the trade brand INCIVO®. ...
(Date:7/25/2014)... -- Solanbridge Group Inc (OTC: SLNX) is pleased to announce ... and the Letter of Intent issued on July 11, ... Agreement. Charles R. Shirley , Managing ... Mr. David Pecoraro and Buzznbrewz.com join SLNX,s ... sector and developed a tremendous network of contacts who ...
(Date:7/25/2014)... July 25, 2014 Research and Markets ... Ophthalmic Diagnostic Devices Market 2014-2018" report to their ... About Ophthalmic Diagnostic Device An ... identify a defect or deficiency in the human visual ... disorders such as presbyopia, cataracts, glaucoma, retinal disorders, conjunctivitis, ...
Breaking Medicine Technology:The Hepatitis C virus is the main cause of liver transplant in the world 2The Hepatitis C virus is the main cause of liver transplant in the world 3Solanbridge Group Inc Announces Acquisition of Buzznbrewz.com 2Global Ophthalmic Diagnostic Devices Market 2014-2018: Key Vendors are Alcon, Carl Zeiss, Haag-Streit and Topcon 2
... The Epi-K is a fully automated ... surgeons to,perform a new refractive procedure ... to,mechanically cleave the epithelium from the,Bowmans ... laser ablation.,Epi-Lasik preserves the structural integrity,of ...
... The Titan Procedure is a ... infrared light source to tighten skin ... The Titan heats the dermis to ... epidermis through continuous cooling. In addition, ...
... Confidence…real time , ... system for permanent, ... XLTEK ... IOM system. Both configurations feature ...
... Combining exceptional new ... design, XLTEKs latest innovation, ... delivers biphasic intracranial stimulation ... and 300 volts and ...
Medicine Products: