Navigation Links
Foundational concept of ecology tested by experiment
Date:6/22/2012

Mihaljevic, then a WUSTL undergraduate and now a graduate student at the University of Colorado, Boulder, created eight artificial wetlands at Tyson, each consisting of a central stock tank and four smaller surrounding pools.

The tanks were stocked with six species of aquatic plants and three species of snails and inoculated with the smaller zooplankton and phytoplankton drawn from local ponds. The remainder of the aquatic community, such as frogs, dragonflies, flies, beetles and bugs, was allowed to assemble naturally.

Loosestrife plants in pots were placed in each of the four small pools. The pools were separated from the tanks so that only the flowers and not plant litter and pollen would play a role in the ecosystem of the central pool.

The eight "wetlands" thus created were divided into four treatment groups and the number of loosestrife flowers in each "wetland" was manipulated to mimic differences in loosestrife density.

The loosestrife in two wetlands were left alone but flowers at the other wetlands were picked to reduce their numbers to 75 percent, 50 percent or 25 percent of the flowers at the untouched wetlands.

During the course of the experiment, the small insects visiting the pools were regularly counted and categorized, as were the dragonflies and their behaviors.

At the end of the summer and the experiment, the zooplankton and phytoplankton in the eight central tanks were sampled and identified.

What happened?

The scientists were able to track the effect of the loosestrife flowers across four trophic levels, or levels in the food web, and two ecosystems, the terrestrial and the aquatic ones.

The links worked as follows: Wetlands with abundant flowers attracted more pollinating insects; the insects in turn attracted more of the carnivorous dragonflies; the well-nourished dragonflies laid more eggs in the central ponds; the voracious dragonfly larvae that hatch
'/>"/>

Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Bark beetle management and ecology in southern pine forests
2. CU research shows warming climate threatens ecology at mountain research site west of Boulder
3. Slug ecology and management in no-till field crops
4. PuraMed BioScience®, Inc., Launches a Marketing Blitz for LipiGesic® M, Its Clinically-Tested Migraine Pain Reliever in the Denver, CO Region to Coincide with the NACDSs Marketplace 2012 Trade Convention
5. Experiments may understate plant responses to climate
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Foundational concept of ecology tested by experiment
(Date:9/2/2014)... always true that digital distribution of media will ... means, at least when file sizes are large. ... in Yale,s Journal of Industrial Ecology ... for consoles such as PlayStation3. Researchers found that ... greenhouse gas emissions than game files downloaded over ...
(Date:9/2/2014)... New research suggests that professional baseball pitchers with poor ... days in a single season because of injury than are ... back and pelvis. , In the study, 347 pitchers were ... tilt in their pelvis as they raised a leg to ... miss at least 30 days cumulative, not consecutive ...
(Date:9/2/2014)... A new study published in the September issue ... , identifies a novel strategy to diagnose the ... before irreversible structural damage has occurred. This advance ... diabetes on the endothelium of retinal vessels. Using ... to distinguish the early molecular development of diabetic ...
Breaking Biology News(10 mins):In pro baseball pitchers, weak core linked to more missed days 2In pro baseball pitchers, weak core linked to more missed days 3Molecular probes permit doctors to detect diabetic retinopathy before vision fails 2
... presents research on the genetic make-up and biology of ... better diagnosis and treatment of the diarrhea disease giardiasis, ... may also bring an understanding of several vital biological ... parasite that exists all over the world and causes ...
... GMES Programme approved the transition to Phase-2 of Segment ... of the programme by the ESA Council at ministerial ... 2 of 116%, giving a total amount of 500 ... ESA to confirm the development of the first three ...
... Now Fully Supports M2SYS Fingerprint Technology to ... Accurately Verify Check Casher Identity, ... biometric,technology research and development firm, announced today its partnership,with ... solutions, to integrate the M2SYS Bio-Plugin(TM) fingerprint,solution into TeraCash, ...
Cached Biology News:New Swedish research hope for millions of sufferers 2M2SYS Technology Partners with TeraCorp Enterprises to Provide Added Security Within Check Cashing Solution 2
(Date:9/2/2014)... PROVIDENCE, N.J. , Sept. 2, 2014   ... for MassBio,s 20th Annual Golf Classic, a major fundraiser ... event will be held on September 5 at the ... . The MassBioEd Foundation supports ... through educational programs, workforce development, and lifelong learning. ...
(Date:9/2/2014)... nanowires could be used for detailed studies of what ... important for pharmaceuticals research, among other applications. A group ... to make artificial cell membranes form across a large ... All communication between the interior of a cell and ... membrane is a surface layer that holds the cell ...
(Date:9/2/2014)... -- Persistence Market Research ( http://www.persistencemarketresearch.com/ ) ... and Life Sciences: North America ... market for pharmaceutical, biopharma and life sciences is estimated at ... grow at a CAGR of 9.1% from 2014 to ... million in 2019. Browse the full Global ...
(Date:9/2/2014)... 2014 Myriant Corporation, a global ... a distribution agreement with Azelis Group, a specialty ... bio-succinic acid in the Nordics, Benelux, France, Iberia, ... in the industrial and base chemicals markets. , ... a far-reaching chemical portfolio with extensive distribution networks ...
Breaking Biology Technology:Linde helps fund STEM education in Massachusetts 2Linde helps fund STEM education in Massachusetts 3Nano-forests to reveal secrets of cells 2Global Membrane Technology Market Will Reach $10,886.0 Million in 2019: Persistence Market Research 2Global Membrane Technology Market Will Reach $10,886.0 Million in 2019: Persistence Market Research 3Global Membrane Technology Market Will Reach $10,886.0 Million in 2019: Persistence Market Research 4Global Membrane Technology Market Will Reach $10,886.0 Million in 2019: Persistence Market Research 5Myriant and Azelis Sign European Distribution Agreement for Bio-Succinic Acid 2
... N.J., June 12 BioNeutral announced today the,results ... anthrax,spores on contact. This chemical technology is designed ... in conjunction with any suspected anthrax,exposure. "The Ygiene(TM) ... in as little as 15 seconds," said Dr. ...
... June 12 GenVault Corporation today,announces Paul J. ... Inc.,has joined its Board of Directors. Mr. Mirabella ... imaging with GE Healthcare where he held,leadership roles ... this substantial background in diagnostics and the healthcare,market, ...
... BRUNSWICK, N.J., June 12 Senesco,Technologies, Inc. ("Senesco" ... announced,that the Company will be presenting at the ... Annual International Convention,which is being held at the ... Galton, Chief Executive Officer of Senesco, will deliver ...
Cached Biology Technology:BioNeutral Announces a BREAKTHROUGH in the Fight Against Bioterrorism 2Paul J. Mirabella, President and CEO of Naviscan PET Systems Inc., Joins GenVault's Board of Directors 2Senesco Technologies to Present at BIO 2008 Business Forum 2
... is a simple, easy to use ... bacterial and yeast applications. The ... voltages and either one mm, two ... pressing the pulse button the electroporator ...
... CGH Genomic Labeling Systems are a high-performance ... genomic DNA samples for array-based Comparative Genomic ... direct labeling formats, the BioPrime Plus Array ... solution to your genomic labeling needs. ...
MOUSE ANTI GTP BINDING PROTEIN...
The Cellject Elecroporator is suitable for all cell types including embryo, mammalian, plant, yeast and bacterial. Its has highly user-freindly programing and can be used remotely, for example in a l...
Biology Products: