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:10/30/2014)... 2014 Biological membranes are mainly composed of lipid ... solution ions onto lipid membranes helps clarify functional ... provides a quantitative description of the equilibria between ... and Zbigniew Figaszewski from the University of Bialystok, ... these findings, just published in EPJ E ...
(Date:10/29/2014)... released by unconventional oil and gas production are well ... in the open access journal Environmental Health . ... found. The study is the first to be based ... sites and could be used to supplement official air-quality ... reserves that do not readily flow to the surface. ...
(Date:10/29/2014)... In the largest study of its kind to date, ... genes that heighten the risk for autism. Joseph Buxbaum, ... York City, Mark Daly, Ph.D., Broad Institute of Harvard ... DNA samples from affected children, parents and unrelated people. ... to contribute to the risk for autism spectrum disorder ...
Breaking Biology News(10 mins):Ion adsorption matter in biology 2Air quality and unconventional oil and gas sites 2Air quality and unconventional oil and gas sites 3
... BiOptix announced continued support of the Colorado BioScience ... life sciences showcase event in Colorado to be ... continues to believe in the goals and community that is ... President and CEO of BiOptix.   "As Colorado continues to ...
... become more severe in the Southwest, trees are increasingly ... to middle elevations, University of Arizona researchers report in ... Journal of Geophysical Research Biogeosciences ., Lead author Jeremy ... of geosciences, said: "We know the climate in the ...
... study provides a first-time analysis of the value of forage ... and anchovies. Three kinds of contributions of forage fish were ... fish, and as an important link in the food web ... a total of $16.9 billion, as both direct catch and ...
Cached Biology News:BiOptix Participates in Leading Life Sciences Event BioWest 2012 2Droughts are pushing trees to the limit 2Droughts are pushing trees to the limit 3Droughts are pushing trees to the limit 4Study provides first-time analysis of 3 distinct contributions of forage fish worldwide 2Study provides first-time analysis of 3 distinct contributions of forage fish worldwide 3
(Date:10/30/2014)... 2014 Rancho BioSciences , the ... manually curated public data source TCGA for ... the data is now available for other oncology groups. ... and internal data sources for their Pharma, Government and ... the data that becomes more easily accessible. Rancho ...
(Date:10/30/2014)... (PRWEB) October 30, 2014 Whitehouse Laboratories ... its ICH Stability Testing and Package Test Capacity. Responding ... centers on a dramatic increase in environmental chamber storage ... stability, storage and aging samples to be securely held ... this major capital expenditure has already taken place with ...
(Date:10/30/2014)... Isis Pharmaceuticals, Inc. (NASDAQ: ISIS ), ... present a company overview at the Nomura Biotechnology Conference on ... Boston, MA. A live webcast ... Media" section of the Company,s website, www.isispharm.com .  A ... hours and will be archived for a limited time. ...
(Date:10/30/2014)... challenges in the development of quantum technologies has been ... paper published today (28 October) in Nature Communications ... make a new type of flexibly designed microscopic trap ... sensors and specialised superfast computers, often depend on harnessing ... trapping these tiny particles are hugely problematic because of ...
Breaking Biology Technology:Rancho BioSciences Manually Curated TCGA Data Sets Available 2Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 2Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 3Isis Pharmaceuticals to Present at the Nomura Biotechnology Conference 2
... Amylin Pharmaceuticals, Inc. (Nasdaq: AMLN ) and ... announced that a supplemental New Drug Application (sNDA) has been ... the expanded use of BYETTA® (exenatide) injection as an add-on ... thiazolidinedione (TZD) in conjunction with diet and exercise for adults ...
... 22, 2010 Novavax, Inc. (Nasdaq: NVAX ... School, led by Dr. Trudy Morrison, published in the ... report indicating that a novel virus-like particle (VLP) vaccine ... a live virus challenge.  This vaccine candidate has been ...
... the University of Santiago de Compostela (USC) have analysed levels ... in Galicia. The results show that 34% of these schools ... Union. Excessive inhalation of radon is associated with lung cancer. ... taken, 34% had radon levels in excess of 400 Bequerels/m3 ...
Cached Biology Technology:Amylin and Lilly Seek Expanded Use of BYETTA® Along with Basal Insulin 2Amylin and Lilly Seek Expanded Use of BYETTA® Along with Basal Insulin 3Amylin and Lilly Seek Expanded Use of BYETTA® Along with Basal Insulin 4Amylin and Lilly Seek Expanded Use of BYETTA® Along with Basal Insulin 5Amylin and Lilly Seek Expanded Use of BYETTA® Along with Basal Insulin 6Amylin and Lilly Seek Expanded Use of BYETTA® Along with Basal Insulin 7NOVAVAX and University of Massachusetts Medical School Publish Preclinical Safety and Efficacy Study of a Respiratory Syncytial Virus (RSV) Virus-like Particle (VLP) Vaccine Candidate 2NOVAVAX and University of Massachusetts Medical School Publish Preclinical Safety and Efficacy Study of a Respiratory Syncytial Virus (RSV) Virus-like Particle (VLP) Vaccine Candidate 3NOVAVAX and University of Massachusetts Medical School Publish Preclinical Safety and Efficacy Study of a Respiratory Syncytial Virus (RSV) Virus-like Particle (VLP) Vaccine Candidate 434 percent of Galician secondary schools exceed maximum recommended radon levels 2
... compact benchtop and stackable multi-function incubator. ... a large display screen to accurately ... circulation inside to evenly distribute temperature ... easily calibrated from the microprocessor controller. ...
... --- a cocktail of 3 siRNAs specifically ... our most popular product. The siTrio reagent ... of your target gene when used under ... and confirmation of optimal transfection with one ...
... with 96 x 0.2 ml reaction module ... applications. It is equipped with an interchangeable ... is compatible with optical modules for real-time ... by algorithm, block, or in-sample probe. It ...
... compact benchtop and stackable multi-function incubator. ... a large display screen to accurately ... circulation inside to evenly distribute temperature ... easily calibrated from the microprocessor controller. ...
Biology Products: