Navigation Links
Scientists find city rats are loyal to their 'hoods
Date:5/26/2009

In the rat race of life, one thing is certain: there's no place like home. Now, a study just released in Molecular Ecology finds the same is true for rats. Although inner city rodents appear to roam freely, most form distinct neighborhoods where they spend the majority of their lives.

Like any major city, Baltimore has many lively neighborhoods each with its own personality. But scientists from the Johns Hopkins Bloomberg School of Public Health say humans aren't the only Baltimoreans loyal to their 'hoods. The researchers found that rats typically stay close to home, rarely venturing more than a city block. In the face of danger, however, some rodents can travel as far as 7 miles to repopulate abandoned areas.

Wild Norway rats also called wharf rats, sewer rats or brown rats can weigh nearly 2 pounds and transmit a variety of diseases to humans. Despite expensive eradication efforts, the number of rats in Baltimore has remained unchanged over the past 50 years. To understand why, researchers trapped nearly 300 rats from 11 residential areas of Baltimore and conducted genetic studies to see how the rats were related.

The scientists found that East Baltimore rats are separated from their unrelated West-side counterparts by a large waterway known as the Jones Falls. Within these hemispheres, rat families form smaller communities of about 11 city blocks. Each community is further divided into neighborhoods that span little more than the length of an average alley. And to a city rat, this is home sweet home.

The findings suggest that while rats rarely migrate, neighborhood eradication efforts may backfire by encouraging the rodents to repopulate other areas and further spread disease. When you smell a rat, the researchers say, the best solution may be to tackle the problem on a much larger scale perhaps by targeting entire families at once. Rat race won.


'/>"/>

Contact: F. Galligan
fgalligan@wiley.com
Wiley-Blackwell
Source:Eurekalert

Page: 1

Related medicine news :

1. New prion protein discovered by Canadian scientists may offer insight into mad cow disease
2. Scientists Probe Sepsis Deadly Secrets
3. Scientists puzzled by severe allergic reaction to cancer drug in the middle Southern US
4. Scientists Develop Natural Protection for Stored Foods
5. Scientists detect presence of marburg virus in african fruit bats
6. Scientists Spot Brains Free Will Center
7. Scientists ID Likely Culprit in Popcorn Lung
8. Scientists explain how insulin secreting cells maintain their glucose sensitivity
9. Scripps Research scientists shed new light on how antibodies fight HIV
10. Scientists, physicians present latest findings in personalized cancer treatment and prevention
11. Scientists demonstate link between genetic variant and effectiveness of smoking cessation meds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/26/2017)... ... July 26, 2017 , ... Team Type 1 Foundation, ... medicine for everyone affected by diabetes, is excited to announce the 106 college athletes ... Program. , Established in 2005, the Team Type 1 Foundation has bestowed a ...
(Date:7/26/2017)... BC (PRWEB) , ... July 26, 2017 , ... ... (the “Company” or “Isodiol”) a global cannabis innovator, specializing in the development of ... the period from April 1, 2017 to June 30, 2017. Iso International LLC ...
(Date:7/26/2017)... ... July 26, 2017 , ... The number of adults 65 years or ... ways to improve asthma control in the population are not well described. In a ... Practice), an official journal of the American Academy of Allergy, Asthma & Immunology (AAAAI), ...
(Date:7/25/2017)... MOORE, OK (PRWEB) , ... July 25, 2017 ... ... are proud to announce the launch of their partnership to provide the ... is the first pharmacy-focused platform in the country with the ability to develop ...
(Date:7/25/2017)... ... July 25, 2017 , ... ... provider in the United States, today announced its partnership with financial technology company, ... , The foundation of the solution lies within Hyosung’s superior ATMs, assisted self-service ...
Breaking Medicine News(10 mins):
(Date:7/21/2017)... July 21, 2017  Endo International plc (NASDAQ: ... comprehensive review of its manufacturing network, the Company will ... facilities in Huntsville, Alabama . The ... over the next 12 to 18 months. The ... declining volumes of commoditized products and these restructuring actions ...
(Date:7/15/2017)... PHILADELPHIA , July 15, 2017 Enterin Inc., ... compounds to treat Parkinson,s disease (PD), today announced the completion ... included new investors New Ventures III, as well as the ... "We are absolutely thrilled to have the support of New ... of our investors as validation of the potential of our ...
(Date:7/13/2017)... 2017  New York City-based market research firm Kalorama Information ... aware of.  From new products to new costs, to the ... recently completed study, Potential Pipeline Disruptors . ... 1.  Age-Driven Growth - True Impact Moment Arriving ... the impact the growing population and, to a more extreme ...
Breaking Medicine Technology: