Navigation Links
Marsh plants actively engineer their landscape
Date:2/13/2013

DURHAM, NC -- Marsh plants, far from being passive wallflowers, are "secret gardeners" that actively engineer their landscape to increase their species' odds of survival, says a team of scientists from Duke University and the University of Padova in Italy.

Scientists have long believed that the distribution of plants within a marsh is a passive adaption in which species grow at different elevations because that's where conditions like soil aeration and salinity best meet their needs.

But this team found intertidal marsh plants in Italy's famed Venetian lagoon were able to subtly tune, or adjust, their elevations by producing different amounts of organic soil, and trapping and accumulating different amounts of inorganic sediments as part of a complex interplay with the environment.

"Our study identifies the visible signature of a two-way feedback occurring between the vegetation and the landscape," said Marco Marani, professor of ecohydrology at Duke's Nicholas School of the Environment and Pratt School of Engineering. "Each species builds up the elevation of its substrate to within a favorable range for its survival, much the way corals in the animal kingdom do."

The finding may help scientists better predict marsh ecosystems' resilience to climatic changes such as sea level rise.

"Obviously, this is not a conscious choice on the part of the plants," Marani said. "It's a natural mechanism -- how marshes work. We just didn't understand it in such detail until now."

The study appears this week in the early online edition of the Proceedings of the National Academy of Sciences.

The team used numerical modeling to visualize the dynamic interactions of marsh ecosystems over time, and tested the models against detailed topographical surveys of elevations and distributions of plant species in the Venetian lagoon.

"We've been studying this same marsh for 15 years and, as in similar s
'/>"/>

Contact: Tim Lucas
tdlucas@duke.edu
919-613-8084
Duke University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. University of Houston study shows BP oil spill hurt marshes, but recovery possible
2. Marshall University study may lead to new treatments for prostate cancer
3. BP Deepwater Horizon oil spill exacerbated existing environmental problems in Louisiana marshes
4. Curiosity on Mars sits on rocks similar to those found in marshes in Mexico
5. Depression-era drainage ditches emerge as sleeping threat to Cape Cod salt marshes
6. Not just for the birds: Man-made noise has ripple effects on plants, too
7. Human noise has ripple effects on plants
8. Plants mimic scent of pollinating beetles
9. Stomata development in plants unraveled -- a valuable discovery for environmental research
10. Scientists study the catalytic reactions used by plants to split oxygen from water
11. Which plants will survive droughts, climate change?
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Marsh plants actively engineer their landscape
(Date:7/31/2014)... adipocytes, or fat cells, are inherently different. Each of ... its own role in metabolism. In the human body, ... Its primary function is energy storage. On the other ... but are only found in a few places in ... special type of brown adipocytes, appear mixed with brown ...
(Date:7/31/2014)... studies have shown that marine noise can affect animal ... the Universities of Bristol and Exeter and the cole ... demonstrated that boat noise stops embryonic development and increases ... the sea slug Stylocheilus striatus used in ... away and later feed on toxic alga but this ...
(Date:7/30/2014)... epigenetic processes to regulate its genes, and adapt to ... of the genome regulation taking place in the truffle, ... Biology and illustrates how the truffle deals with ... authors say this may shed light on how traits ... (Tuber melanosporum), also known as Prigord truffles, have a ...
Breaking Biology News(10 mins):Hope for the overweight 2Boat noise impacts development and survival of sea hares 2How black truffles deal with the jumpers in their genome 2
... Fast development is often perceived as an advantage, ... readiness to cope with the challenges that it poses. ... and University of California, Santa Cruz, and published in ... the acceleration of developmental rate incurs potentially lethal physiological ...
... molding some snow into a ball and hurling it or ... can? New research from Indiana University and the University of ... readily learn to throw long distances. This research also suggests ... in a way critical to our very existence. ...
... N.C. Despite what you might have heard, genetic sequencing ... Duke University Medical Center have shown that functional tests are ... of sequencing studies as they relate to disease, using a ... patients to have many different traits. "Right now ...
Cached Biology News:Faster development might have its costs 2Faster development might have its costs 3IU study: Humans' critical ability to throw long distances aided by an illusion 2IU study: Humans' critical ability to throw long distances aided by an illusion 3Genetic sequencing alone doesn't offer a true picture of human disease 2Genetic sequencing alone doesn't offer a true picture of human disease 3
(Date:7/31/2014)... BLOOMINGTON, Ind. -- Chemists at Indiana University Bloomington ... in bricks-and-mortar fashion, a development with potential value ... as field-effect transistors and photovoltaic cells. , Their ... 3D Crystalline Solids and 2D Self-Assembled Crystals," has ... a journal of the Royal Society of Chemistry. ...
(Date:7/31/2014)... Graphite Metallizing Corporation announces GRAPHALLOY® bearings ... are uniquely suited to prevent loss of lubrication that ... high temperatures . , Recently, a manufacturer of ... at Graphite Metallizing to overcome problems with movement of ... pans containing blocks of powder mixture are loaded onto ...
(Date:7/31/2014)... (PRWEB) July 31, 2014 CollabRx, Inc. ... inform therapeutic decision-making in oncology, today announced that it ... 2014 to discuss the Company's financial results for the ... update about the business in the current fiscal year. ... beginning on Thursday, August 14, 2014, at 5 p.m. ...
(Date:7/31/2014)... Francisco, Calif. (PRWEB) July 31, 2014 ... newly diagnosed patients with an overview of the disease ... management of drug side effects, as well as updates ... “We’re grateful to Dr. Sandy Srinivas for organizing this ... survivor of kidney cancer. “Sandy and her colleagues have ...
Breaking Biology Technology:Chemists demonstrate 'bricks-and-mortar' assembly of new molecular structures 2Chemists demonstrate 'bricks-and-mortar' assembly of new molecular structures 3Graphite Metallizing Announces Bearings for High Temperature Oven Applications 2Graphite Metallizing Announces Bearings for High Temperature Oven Applications 3CollabRx, Inc. Schedules First Quarter Fiscal Year 2015 Financial Conference Call and Business Update 2
... deCODE genetics,(Nasdaq: DCGN ) today announced its ... 2008. A conference call to discuss the,quarter,s results, ... webcast live tomorrow, Friday, November 7, at 8:00am ... third quarter 2008 was $11.3 million, compared,to $22.2 ...
... NGX-4010 for management of pain associated ... with PHN, ... review for NGX-4010 ... NGSX ), a biopharmaceutical company focused on developing and,commercializing novel pain management ...
... While Public Relations has,long been used as a ... ability to reach consumers has never been greater. ... the traditional press,release as effective and low-cost methods ... was conducted by Best Practices, LLC to,identify what ...
Cached Biology Technology:deCODE genetics Announces Third Quarter 2008 Financial Results 2deCODE genetics Announces Third Quarter 2008 Financial Results 3deCODE genetics Announces Third Quarter 2008 Financial Results 4deCODE genetics Announces Third Quarter 2008 Financial Results 5deCODE genetics Announces Third Quarter 2008 Financial Results 6deCODE genetics Announces Third Quarter 2008 Financial Results 7deCODE genetics Announces Third Quarter 2008 Financial Results 8deCODE genetics Announces Third Quarter 2008 Financial Results 9deCODE genetics Announces Third Quarter 2008 Financial Results 10deCODE genetics Announces Third Quarter 2008 Financial Results 11deCODE genetics Announces Third Quarter 2008 Financial Results 12NeurogesX Reports Third Quarter 2008 Results 2NeurogesX Reports Third Quarter 2008 Results 3NeurogesX Reports Third Quarter 2008 Results 4NeurogesX Reports Third Quarter 2008 Results 5NeurogesX Reports Third Quarter 2008 Results 6NeurogesX Reports Third Quarter 2008 Results 7NeurogesX Reports Third Quarter 2008 Results 8NeurogesX Reports Third Quarter 2008 Results 9New Study Shares Best Practices in Biopharma Public Relations 2
...
... HighSens reagents and supplies, for 10 ... sufficient to perform high-sensitivity RNA analysis ... the Experion automated electrophoresis system. Supplied ... microliters RNA HighSens stain, 20 microliters ...
... solid. PROTECT FROM LIGHT. PACKAGED UNDER ... that acts as a selective, reversible ... (IC 50 = 4 μM ... and PTP1B 298 , respectively). ...
...
Biology Products: