Navigation Links
January American Naturalist highlights
Date:1/4/2008

ts. In order to study the consequences of the liberation of such compounds on competitive interactions between plants, Raynaud and his colleagues have developed a new model that simulates the release of these compounds and the uptake of nutrients by plants at the scale of individual roots. "Our model emphasizes the importance of soil water in determining the mobility of nutrients in the soil and therefore which plants will be able to get them," states Xavier Raynaud. "Roots behave essentially as independent units in dry soils, so plants interact primarily through the number of roots they make. However, in wet soils, plants can strongly influence their neighbors by releasing exudates from their roots or by rapidly taking up nutrients. We hope that this model will help unify divergent views of plant competition by providing a more comprehensive view of the mechanisms controlling nutrient fluxes in the soil."


"Nontrophic interactions, biodiversity, and ecosystem functioning: an interaction web model"
Alexandra Goudard (Ecole Normale Suprieure and Universit Pierre et Marie Curie) and Michel Loreau (McGill University)

Most ecological theories deal with simple consumerresource interactions. Scientists at Ecole Normale Suprieure (Paris) and McGill University provide a novel approach to incorporate nontrophic interactions, such as pollination and habitat modification, in ecosystem models, which allows them to study the dynamics of complex interaction webs.

Their model adds nontrophic interactions to a food web in the form of modifications of trophic interactions. It also tracks nutrient fluxes in the food web and hence satisfies the principle of mass conservation. Using this model, they show that nontrophic interactions can profoundly influence ecosystem properties such as species diversity, biomass, and production. In turn, the nature, prevalence, and strength of species interactions depend on species diversity. Counteri
'/>"/>

Contact: Rudy Faust
rfaust@press.uchicago.edu
773-834-0386
University of Chicago Press Journals
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9 10 11 12 13

Related medicine news :

1. Align Technology to Announce Fourth Quarter and 2007 Year End Financial Results on January 29, 2008
2. Somanetics Corporation to Release Fourth Quarter and Fiscal 2007 Financial Results and Host Conference Call January 23, 2008
3. January is National Glaucoma Awareness Month
4. Insulet Corporation to Present at the JPMorgan Healthcare Conference on January 8, 2008
5. Echo Healthcare Extends Stockholder Vote on Proposed Merger With XLNT Veterinary Care to January 4, 2008
6. Immtech Investor Conference Call Scheduled for January 3, 2008, at 1 PM
7. National Cervical Cancer Coalition Stresses Importance of Screening and Prevention During January Cervical Health Awareness Month
8. Gentiva(R) Health Services to Present January 8 at JPMorgan Healthcare Conference in San Francisco
9. Hospira to Present at the JPMorgan 26th Annual Healthcare Conference on January 9
10. Biodel Inc. to Present at 26th Annual JPMorgan Healthcare Conference on January 7th, 2008
11. NPS Pharmaceuticals to Present at the JPMorgan 26th Annual Healthcare Conference on January 9, 2008
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/22/2014)... (PRWEB) October 22, 2014 Best Cheap ... in the world. The site has recently announced that ... hosting supplier for people from around the world. , ... in operation today and is providing various kinds of ... the company insists on offering excellent customer service and ...
(Date:10/22/2014)... (PRWEB) October 22, 2014 Lintelus, Inc., ... Sr. Vice President of Sales, will be speaking on ... Meetings Technology Expo on October 28, at the Holiday ... hosting a booth as well as a Tech Demo ... Meeting can create a more engaging event experience. , ...
(Date:10/22/2014)... Maureen Salamon HealthDay Reporter ... women undergoing in vitro fertilization (IVF) are only about half ... popular assisted reproduction technique, new research indicates, and the racial ... the study, about 31 percent of white patients became pregnant ... Analyzing more than 4,000 IVF cycles over two years ...
(Date:10/22/2014)... Measures taken by Firestone officials at the company,s ... the spread of the disease there and could prove ... Co. provides health services to about 80,000 employees, retirees, ... Between Aug. 1 and Sept. 23, there were ... people. That incidence rate of 0.09 percent was much ...
(Date:10/20/2014)... With a mere 19 days to November 4, ... fundraising stop at the  Law Offices of Dan ... debate last night with his opponent Gov. Rick Scott, ... seven minutes because Crist had an electric fan underneath ... one word: "weird." , Before touching on his well-known ...
Breaking Medicine News(10 mins):Health News:Best Cheap Hosting USA Has Recently Announced The Best Cheap Web Hosting Companies In 2014 2Health News:Jay Cormier, Sr. Vice President of Sales for Lintelus, Speaks about Event Technology Integration at Meetings Technology Expo in NYC 2Health News:Black Women Fare Worse With Fertility Treatments, Study Says 2Health News:Black Women Fare Worse With Fertility Treatments, Study Says 3Health News:Tire Company Sets Standard for Ebola Care in Liberia: CDC 2Health News:At Crist Fundraiser, Dan Newlin Says, "No More Robert Germans," Will Seek Changes to Florida Missing Persons Law 2Health News:At Crist Fundraiser, Dan Newlin Says, "No More Robert Germans," Will Seek Changes to Florida Missing Persons Law 3
... ... Unresponsive to Conventional Medical Treatments. , ... Boca Raton, FL (PRWEB) July 2, 2010 -- Amy, a 55 ... Under traditional drug treatment, which included five daily pills and injections, Amy,s condition only ...
... ... LA-540, an aspirator and liposuction system that is dependable and affordably-priced. , ... Louisville, KY (Vocus) July 2, ... DRE LA-540 , an affordable aspirator and liposuction system that features two positive ...
... ... It, Personal Notes, and the new book, Write the Right Words, answers the question of what ... ... I write?"--when a friend,s beloved pet dies; a favorite aunt wins that coveted prize; or a ...
... are up to twice as likely as other races ... nearly every common cancer type, the largest differences occur ... that black patients are not getting needed lifesaving treatments, ... of Michigan Comprehensive Cancer Center. Five-year survival rates ...
... ... its new upper extremity range, bebionic. Launched at the ISPO World congress in May, the ... approximately 9,000 Euros, or $11,000 USD. , ... (PRWeb UK) July 1, 2010 -- RSLSteeper have announced the pricing for the ...
... , THURSDAY, July 1 (HealthDay News) -- Scientists have grouped ... 77 percent accuracy whether or not a person will live ... probably could have predicted life span with even greater accuracy ... said Dr. Robert Marion, chief of genetics and development medicine ...
Cached Medicine News:Health News:New Approach to Rheumatoid Arthritis 2Health News:New Approach to Rheumatoid Arthritis 3Health News:DRE Introduces Economically-Priced Liposuction System 2Health News:DRE Introduces Economically-Priced Liposuction System 3Health News:Write the Right Words Answers What-to-Write Questions 2Health News:Why are blacks more likely to die from cancer diagnosis? 2Health News:RSLSteeper announces pricing for new bionic hand 2Health News:Scientists Spot Gene Variants That Predict Longevity 2Health News:Scientists Spot Gene Variants That Predict Longevity 3
(Date:10/20/2014)... 20, 2014  PneumRx, Inc. ( www.pneumrx.com ), a ... completion of enrollment in their RENEW Study, nearly 3 ... the FDA-approved IDE pivotal trial for the PneumRx RePneu ... It was anticipated that the study, which began enrolling ... until the end of 2014 to enroll 315 patients.  ...
(Date:10/20/2014)... 20, 2014  Luoxis Diagnostics, Inc., a subsidiary ... announced that its academic collaborators will present several ... for its novel RedoxSYS Diagnostic System, a first-in-class ... body in response to injury or illness.  A ... a clinical marker will be presented by ...
(Date:10/20/2014)... , Oct. 20, 2014   BioNano Genomics announced ... the ability to collect human data at 30X depth, sufficient ... chip.  This new capability was established and demonstrated for the ... Irys TM System and will be rolled out ... BioNano will be showcasing this advancement at the American ...
Breaking Medicine Technology:PneumRx Completes RENEW Pivotal Trial Enrollment 2PneumRx Completes RENEW Pivotal Trial Enrollment 3Luoxis to Highlight RedoxSYS at Two Upcoming Scientific Conferences 2Luoxis to Highlight RedoxSYS at Two Upcoming Scientific Conferences 3Luoxis to Highlight RedoxSYS at Two Upcoming Scientific Conferences 4Luoxis to Highlight RedoxSYS at Two Upcoming Scientific Conferences 5BioNano Genomics Announces One Human : One Chip : One Day 2BioNano Genomics Announces One Human : One Chip : One Day 3
... 2011 Cumberland Pharmaceuticals Inc. (Nasdaq: ... care and gastroenterology markets, today announced fourth quarter and full ... For the three months ended December 31, 2010, net revenue ... corresponding period in 2009. This quarterly revenue growth was largely ...
... Hill-Rom Holdings, Inc. (NYSE: HRC ) today ... immediately. "I am pleased to have someone of ... Mark Guinan, Senior Vice President and Chief Financial Officer of ... will contribute to the solid financial leadership of our company ...
Cached Medicine Technology:Cumberland Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Financial Results 2Cumberland Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Financial Results 3Cumberland Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Financial Results 4Cumberland Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Financial Results 5Cumberland Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Financial Results 6Cumberland Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Financial Results 7Cumberland Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Financial Results 8Cumberland Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Financial Results 9Cumberland Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Financial Results 10Cumberland Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Financial Results 11Cumberland Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Financial Results 12Cumberland Pharmaceuticals Reports Fourth Quarter and Full Year 2010 Financial Results 13
Latex agglutination slide test for the qualitative or quantitative determination of Cryptococcus neoformans antigen in CSF and serum....
... testing feature single-well ANA screen and ENA ... tests including dsDNA, and 6 individual ENA ... Scl-70 and Jo-1. In addition, our autoimmune ... products for Cardiolipins (IgA, IgG, IgM), Thyroglobulin, ...
... septicemia occur yearly in the U.S., with ... the organism and the determination of its ... Wampole ISOSTAT/ ISOLATOR Microbial System is a ... This technology is used to concentrate microorganisms ...
Hemagglutination slide test for the qualitative detection and quantitative determination of antibodies to streptococcal extracellular antigens in serum, plasma, or whole blood....
Medicine Products: