Navigation Links
Ancient food webs developed modern structure soon after mass extinction
Date:3/19/2014

dataset," says Dunne.

Nevertheless, the researchers were able to show that the Messel forest web is likely comparable in structure to modern webs, by using models to account for differences in structure that would result from the many more taxa and interactions in the Messel data.

The results are significant because they show that the Messel ecosystem developed a modern ecological structure, along with a modern biota, in a relatively brief 18 million year period following Earth's most recent die-off, the end-Cretaceous mass extinction, which disrupted ecosystem dynamics on a massive scale and served as a species diversity bottleneck.

Dunne says that beyond the ecological and evolutionary significance of the study, the work resulted in the most highly resolved, detailed, and comprehensive terrestrial food web ever compiled.

"We want our data to serve as a challenge to ecologists to compile more highly and evenly resolved food web data for extant systems," she says.

Ancient food webs are particularly difficult to reconstruct because data about them is usually limited and of low quality. But the Messel shale deposit is unique. Scientists hypothesize that releases of toxic volcanic gases rendered the area's air and water lethal to most life in a short time. Animals in and near the lake were overwhelmed, and, along with plants, sunk to the low-oxygen depths of the lake where they were smothered in mud and fossilized, soft tissue and all.

The Messel includes outstanding evidence of feeding interactions, including stomach contents and bite marks in soft tissues that can be traced back to particular species' mouth parts, Dunne says.

"Compiling such a highly resolved food web was possible for the Messel because of the exquisite preservation of soft body parts and ecological traces in the deposit," she says, "and because my co-author, Conrad Labandeira, is one of the world's foremost experts on fossil plant-insect
'/>"/>

Contact: Jennifer Dunne
jdunne@santafe.edu
Santa Fe Institute
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Ancient DNA shows moa were fine until humans arrived
2. Climate of Genghis Khans ancient time extends long shadow over Asia of today
3. Ancient herring catch nets fisheries weakness
4. Wasps use ancient aggression genes to create social groups
5. Substance in photosynthesis was at work in ancient, methane-producing microbes
6. Forest emissions, wildfires explain why ancient Earth was so hot
7. Arctic warmth unprecedented in 44,000 years, reveals ancient moss
8. Fossil pigments reveal the colors of ancient sea monsters
9. Ancient sharks reared young in prehistoric river-delta nursery
10. Amber fossil reveals ancient reproduction in flowering plants
11. Ancient fig wasp lived tens of millions of years before figs
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Ancient food webs developed modern structure soon after mass extinction
(Date:8/28/2014)... PAUL (August 28, 2014) Researchers at the University ... facioscapulohumeral muscular dystrophy (FSHD) to be used for muscle ... of potential therapies for FSHD. , The research is ... Cell Reports . , There is no treatment for ... most common type of muscular dystrophy. FSHD is an ...
(Date:8/28/2014)... that could positively impact the global battle ... thanks to researchers in Penn State,s College ... made from the seaweed-derived food ingredient carrageenan ... provides a woman-initiated, drug-delivery vehicle that can ... infections during unprotected heterosexual intercourse, the researchers ...
(Date:8/28/2014)... 25 million kilometres of new roads will be built ... into Earth,s last wildernesses, where they bring an influx ... Now, an ambitious study has created a ,global roadmap, ... to balance the competing demands of development and environmental ... layer that estimates that natural importance of ecosystems and ...
Breaking Biology News(10 mins):UMN researchers find animal model for understudied type of muscular dystrophy 2Sensory-tested drug-delivery vehicle could limit spread of HIV, AIDS 2Sensory-tested drug-delivery vehicle could limit spread of HIV, AIDS 3Study shows where on the planet new roads should and should not go 2Study shows where on the planet new roads should and should not go 3
... the European Medicines Agency (EMA) approved the modified adeno-associated ... for clinical use in the Western world. uniQure, a ... treatment of a rare inherited metabolic disease called lipoprotein ... out of one million people. The disease causes severe, ...
... 2013  Paris Air Show – Marvin Test Solutions ... provider of innovative test solutions for military and commercial ... the Paris Air Show in booth 3-C82. ... longer lifecycles, industry leaders are demanding efficient, feature-rich, specialized ...
... Kingdom, the Energy Department,s National Renewable Energy Laboratory (NREL), ... paper describing a novel cellulose-degrading enzyme from a marine ... the gribble. Gribbles are biologically intriguing because ... own enzymes instead of using symbiotic microbes to break ...
Cached Biology News:No danger of cancer through gene therapy virus 2Marvin Test Solutions Demonstrates Next-Generation Armament Test Solutions at Paris Air Show 2Marvin Test Solutions Demonstrates Next-Generation Armament Test Solutions at Paris Air Show 3Novel enzyme from tiny gribble could prove a boon for biofuels research 2
(Date:8/29/2014)... , Aug. 29, 2014 /PRNewswire/ - iCo Therapeutics ... today reported financial results for the six months ... are expressed in Canadian dollars and presented under ... Quarter 2014 Highlights , Announced top-line ... (VA) primary endpoint for subjects enrolled in the ...
(Date:8/29/2014)... 2014 A major challenge before new ... dense realm of Boston-Cambridge, is gaining visibility that can ... Sherley, the Director of Boston’s Adult Stem Cell Technology ... national visibility of his company an important priority since ... addition to a social media marketing campaign ...
(Date:8/28/2014)... Ca. (PRWEB) August 28, 2014 Best ... rating for an alcohol-based hand sanitizer, asks food processors ... by comparing the hand sanitizer they’re currently using to ... . Hand hygiene is critical to fighting cross-contamination and ... Best Sanitizers believes there are key criteria that ...
(Date:8/28/2014)... , Aug. 28, 2014 /PRNewswire/ ... new market research report is ... Whole Exome Sequencing Market ... Preparation, Target Enrichment), by Services ... Synthesis), by Application (Cancer, Monogenic ...
Breaking Biology Technology:iCo Therapeutics Announces Second Quarter 2014 Financial Results 2iCo Therapeutics Announces Second Quarter 2014 Financial Results 3iCo Therapeutics Announces Second Quarter 2014 Financial Results 4The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 2The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 3The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 4Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 3Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 2Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 3Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 4Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 5Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 6Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 7Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 8Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 9Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 10Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 11Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 12Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 13
... researchers at the Swedish medical university Karolinska Institutet shows ... "bad" LDL cholesterol and thereby cause an inflammation that ... T cell receptors, the researchers have managed to inhibit ... presented online in the distinguished periodical Journal of ...
... discovered that simple peptides can organize into bi-layer membranes. ... pre-biotic Earth,s chemical inventory and the organizational scaffolding essential ... form the kind of membranes needed to create long-range ... of the paper recently published by the German Chemical ...
... Conference Call on Thursday, May 6, 2010 at 4:30 p.m. Eastern Time , ... BOTHELL, WA , and VANCOUVER , May 6 /PRNewswire-FirstCall/ - OncoGenex ... three months ended March 31, 2010 and reviewed the Company,s highlights for the first quarter ... Financial Results , , , ...
Cached Biology Technology:New atherosclerosis vaccine gives promising results 2Peptides may hold 'missing link' to life 2Peptides may hold 'missing link' to life 3OncoGenex Reports First Quarter Financial Results 2OncoGenex Reports First Quarter Financial Results 3OncoGenex Reports First Quarter Financial Results 4OncoGenex Reports First Quarter Financial Results 5OncoGenex Reports First Quarter Financial Results 6OncoGenex Reports First Quarter Financial Results 7OncoGenex Reports First Quarter Financial Results 8OncoGenex Reports First Quarter Financial Results 9
...
... Human IgG Fd. ELISA Specificity: (4) ,human IgG subclass 1 ... 100% ,human IgG subclass 3 100% ,human IgG ... ... 0.04% ,human IgG Fab ...
Human VEGF R2 (KDR) MAb (Clone 89106)...
Salmonella typhimurium Immunogen: Heat inactivated bacterial cells of Salmonella typhimurium B Storage: 4 C...
Biology Products: