Navigation Links
Studies affirm crabs killing Northeast saltmarshes
Date:4/28/2014

ng from 3 a.m. into the early evening. Brown alumnus Tyler Coverdale is a co-author on the Ecology Letters paper.

In Narragansett Bay they ran several tests during the summer at sites where die-off ranged from less than 5 percent to 98 percent. They determined the extent and progress of marsh death by examining aerial images of the sites from 1997, 2003, 2008, and 2012.

To gather data about whether tides were eroding the marshes away, the researchers made chalk blocks and placed them at each site so they could watch how quickly they dissolved. To determine whether local growing conditions were poor for the grasses, they planted healthy grass in each site and then protected it from all herbivores, including the crabs. To assess whether any site had too much nitrogen, they took leaves of the grasses at each site back to the lab, ground them up and analyzed their chemistry.

In the second week in July, they measured herbivory at each site by walking a 20-meter line at each site and then stopping every two meters to measure signs of crab damage on 100 cordgrass stalks. Later in July they measured Sesarma populations (based on how many they could trap). In August they tethered crabs to make them more vulnerable to predators and measured how much predation there was.

They even measured how hard the marsh soil was at each site.

When fall came, they analyzed all the data. The number crunching revealed that differences in herbivory at each site explained 73 percent of the variation in die-off from at each site.

The only other significant factor was the hardness of the soil. Why would that matter? "Substrate hardness influences crab herbivory by limiting crab burrowing in hard and soft substrates, leading to a peak in herbivory in medium hardness substrates where burrows can be easily constructed and maintained," they wrote in PLoS ONE.

Experiment on the Cape

Meanwhile on Cape C
'/>"/>

Contact: David Orenstein
david_orenstein@brown.edu
401-863-1862
Brown University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Genome-wide association studies mislead on cardiac arrhythmia risk gene
2. Studies of gut flora in infants and toddlers could lead to better health
3. New studies needed to predict how marine organisms may adapt to the futures acidic oceans
4. Are enough women included in medical device studies, as required by the FDA?
5. Island channel could power about half of Scotland, studies show
6. Plant cell growth studies funded by NSF grant at UMass Amherst
7. Most clinical studies on vitamins flawed by poor methodology
8. Rheumatoid arthritis research shows the potential of large-scale genetic studies for drug discovery
9. H. pylori vaccine shows promise in mouse studies
10. Blue light phototherapy kills antibiotic-resistant bacteria, according to new studies
11. UI researcher studies evolution on the molecular level
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Studies affirm crabs killing Northeast saltmarshes
(Date:7/29/2014)... JULY 2014 With thirty days to go and ... FEBS-EMBO 2014 Conference are well underway. The event, a ... (FEBS), EMBO, and the French Society for Biochemistry and ... August to Thursday, 4 September at the Palais des ... is the largest meeting for the life sciences in ...
(Date:7/29/2014)... new book that brings together two of the major ... profile of insect fossils through stunning photographs and unique ... James E Jepson, details the incredible preservation and diversity ... scene for what these remarkable fossils can tell us ... future of our planet. Like the mosquito in Jurassic ...
(Date:7/29/2014)... sperm, bacteria and algae, propel themselves using whip-like ... of a millimetre long, function like tiny oars, ... called cilia are found on the surfaces of ... moving liquids over the cell. , Flagella ... and expel pathogens from our airways, they establish ...
Breaking Biology News(10 mins):Counting down to FEBS-EMBO 2014 in Paris, France 2Unique images bring fossil insects back to life 2Microscopic rowing -- without a cox 2Microscopic rowing -- without a cox 3
... in German . ... More precise tests may allow allergy sufferers more freedom of food ... out by the Helmholtz Centre for Environmental Research (UFZ), the University ... examined patients with a Nile perch allergy. Being allergic to Nile ...
... - Chinese researchers from Rui-Jin Hospital, Shanghai Jiao-Tong ... identified the recurrent T372R mutation in the transcription ... insulinoma oncogenesis, implicating a potential marker for the ... (PNETs). The latest study was published online in ...
... African-American women who get breast cancer often get more aggressive ... women. But a Georgia State University researcher has found ... which would let their doctors customize their treatment. Ritu ... called HSET. Earlier studies have linked elevated levels of HSET ...
Cached Biology News:Each food fish can cause specific allergies 2Each food fish can cause specific allergies 3Scientists identified T372R mutation as potential target for diagnosis and treatment of insulinoma 2
(Date:7/29/2014)... LOUIS , July 29, 2014  Sigma-Aldrich Corporation ... water and energy use, increased its investment in Green ... service around the world last year, the Company announced ... What if Science Changed the World? ... earned several honors for being a responsible corporate citizen, ...
(Date:7/29/2014)... -- United Therapeutics Corporation (NASDAQ: UTHR ... the second quarter ended June 30, 2014. ... medicines are reaching increasing numbers of patients ... Martine Rothblatt, Ph.D., United Therapeutics, Chairman and ... quarter of our extended-release tablet called Orenitram ...
(Date:7/29/2014)... July 29, 2014 Eppendorf Centrifuge ... product selection. Eppendorf 5427 R is geared towards high-end ... – it is targeted towards work requiring high sample ... R as it compliments their extensive 16, 48, and ... of microcentrifuge tubes, PCR tubes, PCR strip tubes, and ...
(Date:7/29/2014)... July 29, 2014 White papers ... and cloud based eClinical technologies, have been published by ... These follow a long line of white papers by ... including Life Science Leader, Pharmaceutical Online, and OpenHealthNews. , ... a paper by CTO Marc Desgrousilliers, 'The Five ...
Breaking Biology Technology:Sigma-Aldrich Achieves Record Success in Environmental, Community Initiatives 2Sigma-Aldrich Achieves Record Success in Environmental, Community Initiatives 3United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 2United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 3United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 4United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 5United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 6United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 7United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 8United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 9United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 10United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 11United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 12United Therapeutics Corporation Reports Second Quarter 2014 Financial Results 13International Pipette Distributor, Pipette.com Announces the Addition of the Eppendorf Centrifuge 5427 R to Their Product Portfolio 2Clinovo White Papers Published in Summer 2014 Editions of Leading Medical Device & Pharmaceutical Publications 2Clinovo White Papers Published in Summer 2014 Editions of Leading Medical Device & Pharmaceutical Publications 3
... ... Institute Chooses Genedata for Data Analysis in Biomarker Project , ... Basel, Switzerland (PRWEB) October 19, 2009 -- ... sciences, today announced a collaboration with the Institute of Experimental Medicine, Academy of Sciences ...
... Pa., Oct. 19 Quotient Biodiagnostics, Inc., today announced ... approved its biologics license application (BLA) for the first ... diagnostics. These products are for use by blood ... screen blood. , Quotient Biodiagnostics was formed earlier ...
... UCB today announced data that showed rapid and ... of rheumatoid arthritis (RA) as early as the first ... (seen at week 24) following treatment with Cimzia® (certolizumab ... 100 weeks. Cimzia® is approved for the treatment of ...
Cached Biology Technology:Genedata and the Institute of Experimental Medicine, Academy of Sciences of the Czech Republic Collaborate on Asthma Bronchiale Project 2Genedata and the Institute of Experimental Medicine, Academy of Sciences of the Czech Republic Collaborate on Asthma Bronchiale Project 3Genedata and the Institute of Experimental Medicine, Academy of Sciences of the Czech Republic Collaborate on Asthma Bronchiale Project 4Quotient Biodiagnostics Receives U.S. Food & Drug Administration Clearance To Enter U.S. Transfusion Diagnostics Market 2UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 2UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 3UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 4UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 5UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 6UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 7UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 8UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 9UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 10UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 11UCB's Cimzia(R) (certolizumab pegol), Shows Rapid and Sustained Clinical Response in Adult Patients Living with Moderate to Severe Rheumatoid Arthritis 12
... system, 100-240 V, is an optional module ... automates delivery of up to 20 L ... reader. The HTF system automatically draws sheath ... to constantly maintain a reservoir of pressurized ...
... virtually every research laboratory, the revolutionary Luminex ... accurately, inexpensively and in real time enhancing ... analysis system includes the Luminex 100, the ... xMAP technology which enables you to simultaneously ...
... This gradient system is ideal for routine ... the highly sensitive Adept CE 4201 UV-Visible variable ... phase, is provided by the two highly ... Adept CE 4100 solvent delivery pumps., Chromatograms may ...
... Human A549 cells were cultured in Ham's F12K ... the log phase of growth. In order to ... were fixed in acetone-methanol. The cells are arrayed ... with each wells surface specifically treated to enhance ...
Biology Products: