Navigation Links
Depression-era drainage ditches emerge as sleeping threat to Cape Cod salt marshes
Date:1/25/2013

nded from nearly invisible threads to open channels some nearly 30-40 meters wide with muddy, exposed edges.

The purple marsh crabs need tidal creek edge habitat to thrive, and do not venture into the inner heart of the marsh, where a shorter cordgrass species (the closely related, but squattier Spartina patens) and other high marsh plants dominate. The old WPA mosquito ditches also fulfill the crabs' habitat requirements. Once benign, the ditches nucleated dramatic reconstruction of the landscape with the loss of blue crab, striped bass, and smooth dogfish, and the subsequent boom of purple marsh crabs.

One of the remarkable features of the cordgrass die-off is its tight locality. Some areas of undeveloped marsh as close as a kilometer to the denuded banks around private residences and public docks appear healthy and unaffected. Mosquito ditches that can only be reached by a hard slog through undeveloped marshland do not display the striking die-off and bank erosion. The pattern cued the researchers to the possibility that recreational fishing was the trigger, Coverdale says. Few people wade into the swamp to fish.

Marshes are excellent model systems for observing the intersection of human impacts that can trigger environmental degradation, the authors say, because they have been exploited by humans for centuries, if not thousands of years, and are easily studied from aerial and satellite images.

"Marshes are one of the most heavily utilized resources worldwide," said Coverdale. "They are easily accessible, and provide shellfish, fuel, baitfish and opportunities for recreational anglers. A lot of those harvests are probably sustainable."But he is interested in the tipping points at which use of the marsh becomes unsustainable. The revelation of the slumbering menace of the mosquito ditches raises the prospect of other submerged impacts that may surface under the influence of new, contemporary pressures.

In the early
'/>"/>

Contact: Liza Lester
llester@esa.org
202-833-8773 x211
Ecological Society of America
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Velvet spiders emerge from underground in new cybertaxonomic monograph
2. RIH study: Emergency patients prefer technology-based interventions for behavioral issues
3. Spider version of Bigfoot emerges from caves in the Pacific Northwest
4. Researchers attack HIVs final defenses before drug-resistant mutations emerge
5. X-ray laser helps slay parasite that causes sleeping sickness
6. Badger sleeping habits could help target TB control
7. Commonly used herbicides seen as threat to endangered butterflies
8. Global warming threat to coral reefs: Can some species adapt?
9. Glacier-fed river systems threatened by climate change
10. EPA to highlight innovative ways to detect and respond to biological threats
11. Heightened Security Threats and Economic Issues Provide Fillip to Global Civil and Military Biometrics Market, Says Frost & Sullivan
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Depression-era drainage ditches emerge as sleeping threat to Cape Cod salt marshes
(Date:2/12/2015)... , Feb. 12, 2015 NXT-ID, Inc. (NASDAQ: ... "Company"), a biometric authentication company focused on the growing ... provisional patent 62/113114 for DISTRIBUTED METHOD AND ... The patent further establishes NXT-ID,s position in the ... property portfolio the ability for multiple devices to collaborate ...
(Date:2/5/2015)... , 5. Februar 2015 Marken ... Logistikunternehmen und hat eine neue Marketingkampagne gestartet, ... (Clinical Logistics Organization – CLO) der Branche ... lautet First , mit Schwerpunkt auf ... http://photos.prnewswire.com/prnh/20150205/173753 Logo - ...
(Date:2/5/2015)... 2015   Marvin Test Solutions , ... test solutions for military, aerospace, and manufacturing ... TS-323 GENASYS Test Platform to ... is a high-performance PXI-based system designed to ... require performance functional testing. GENASYS features a ...
Breaking Biology News(10 mins):NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 2NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 3Marken startet Kampagne mit Patienten im Mittelpunkt 2Marken startet Kampagne mit Patienten im Mittelpunkt 3Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 2Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 3Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 4
... cares for the offspring., Apart from the ones he sucks the ... is now creating a stir in the research world. The ... of organising childcare. In this fish species it is the father ... or more females and then looks after in a brood pouch ...
... 2009 Finishing your plate may soon take on a ... Montral School of Industrial Design, has fashioned edible plates that ... phase of her research, which has resulted in a book ... Edible, The Food as Material. "The idea of using ...
... Ga. University of Georgia scientists looking to understand ... found for the first time in plants an inverse ... has implications for diversity not only in plants, but ... published online in this week,s Proceedings of the ...
Cached Biology News:Brooding fishes take up nutrients from their own children 2Plate-eating good: Université de Montréal professor designs edible tableware 2Study finds new relationship between gene duplication and alternative splicing in plants 2Study finds new relationship between gene duplication and alternative splicing in plants 3
(Date:3/2/2015)... 02, 2015 Shimadzu Scientific Instruments will ... on LCMS and marijuana analysis at the Pittcon 2015 ... to 12 at the Ernest N. Morial Convention Center ... by booth 3121 to discuss laboratory challenges with Shimadzu’s ... proven products help save time, money and effort in ...
(Date:3/2/2015)... British Columbia , March 2, 2015 /PRNewswire/ ... a clinical stage biopharmaceutical company specializing in the ... Craig Schneider , Chief Executive Officer, will ... at VirtualInvestorConferences.com. DATE: Thursday, March 5, ... click the red "register/ watch event now" button ...
(Date:3/2/2015)... March 2, 2015 VG Life Sciences, ... for autoimmune and infectious diseases, announced that the ... an important new composition of matter patent covering ... targeting of CLIP. U.S. Patent ... VG Life Sciences, VG1177, a synthetic peptide which ...
(Date:2/28/2015)... Increasing its efforts to resolve the GMO ... episodes of The GMO TRUTH podcast on both ITunes and ... continues its mission to discover the truth and change the ... “uncover the truth about the GMOs in our food supply,” ... Podcast is an expansion of the documentary/investigative film-making methodology in ...
Breaking Biology Technology:Shimadzu Scientific Instruments Announces Product Launches, Presentations and Poster Sessions for Pittcon 2015 2Shimadzu Scientific Instruments Announces Product Launches, Presentations and Poster Sessions for Pittcon 2015 3InMed Pharmaceuticals to Present Investor Webcast March 5 2VG Life Sciences Granted Key Composition Of Matter Patent 2VG Life Sciences Granted Key Composition Of Matter Patent 3The Walk a Mile Project Launches “GMO Truth” Podcast 2
... Neurocrine Biosciences, Inc. (Nasdaq: NBIX ) ... Officer of Neurocrine Biosciences, will be presenting at the ...   The live presentation takes place on ... 8:00 a.m. Pacific Time.  The presentation will be webcast ...
... 21, 2012  Thought leaders from the medical community in Europe ... albumin in treating liver disease and sepsis, and in cardiac ... Dialogue – "Albumin in Clinical Fluid Management ." ... participants engaged in a frank and provocative exchange about the ...
... Addario Lung Cancer Medical Institute,s research portfolio is ... platform for venture philanthropy in medical research. The ... president and COO of ALCMI, sister foundation of ... (Logo:  http://photos.prnewswire.com/prnh/20120221/DC56587LOGO ) ...
Cached Biology Technology:Medical Experts Who Participated in CSL Behring's Key Issues Dialogue Prefer Albumin for Fluid Management 2Medical Experts Who Participated in CSL Behring's Key Issues Dialogue Prefer Albumin for Fluid Management 3FasterCures Spotlights Addario Lung Cancer Medical Institute's Innovative Research Programs 2FasterCures Spotlights Addario Lung Cancer Medical Institute's Innovative Research Programs 3
Mouse monoclonal [X223] to Lamin B1 + B2 - Nuclear Envelope Marker ( Abpromise for all tested applications). entrezGeneID: 4001 SwissProtID: P20700...
... (Human Exonic Evidence Based Oligonucleotide) Genome Set ... ) Genome Set contain a collection of ... constitutively expressed exons, allowing interrogation of thousands ... researchers at Stanford University and UCSF, the ...
odz, odd Oz/ten-m homolog 1 [Source:RefSeq_peptide;Acc:NP_055068] Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
Rabbit polyclonal to FANCE ( Abpromise for all tested applications). entrezGeneID: 2178 SwissProtID: Q9HB96...
Biology Products: