Navigation Links
Did phosphorus trigger complex evolution -- and blue skies?
Date:5/10/2010

time intervals is marked by the earliest fossils of multi-celled organisms and climaxed with the spectacular increase of fossil diversity known as the "Cambrian Explosion."

Papineau found that these phases of atmospheric change corresponded with abundant phosphate deposits, as well as evidence for continental rifting and extensive glacial deposits. He notes that both rifting and climate changes would have changed patterns of erosion and chemical weathering of the land surface, which would have caused more phosphorous to wash into the oceans. Over geologic timescales the effect on marine life, he says, would have been analogous to that of high-phosphorus fertilizers washed into bodies of water today, such as the Chesapeake Bay, where massive algal blooms have had a widespread impact.

"Today, this is happening very fast and is caused by us," he says, "and the glut of organic matter actually consumes oxygen. But during the Proterozoic this occurred over timescales of hundreds of millions of years and progressively led to an oxygenated atmosphere."

"This increased oxygen no doubt had major consequences for the evolution of complex life. It can be expected that modern changes will also strongly perturb evolution," he adds. "However, new lineages of complex life-forms take millions to tens of millions of years to adapt. In the meantime, we may be facing significant extinctions from the quick changes we are causing."


'/>"/>

Contact: Dominic Papineau
dpapineau@ciw.edu
202-478-8908
Carnegie Institution
Source:Eurekalert

Page: 1 2

Related biology news :

1. Everglades phosphorus limits on the right track, but more is needed
2. Diatoms discovered to remove phosphorus from oceans
3. Tracking poultry litter phosphorus: Threat of accumulation?
4. Understanding phosphorus in soils is vital to proper management
5. Researchers call for nitrogen and phosphorus reductions to combat eutrophication in aquatic systems
6. Changing climate will lead to devastating loss of phosphorus from soil
7. Expert to discuss phosphorus impact on Gulf dead zone
8. Calculating agricultures phosphorus footprint
9. Peak P? Phosphorus, food supply spurs Southwest initiative
10. Carnegie Mellon scientists investigate initial molecular mechanism that triggers neuronal firing
11. Agent that triggers immune response in plants is uncovered
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/9/2014)... healthy women differ from bacteria in women with ... from Loyola University Chicago Stritch School of Medicine. ... in the American Society for Microbiology,s online journal ... play a role in female urinary health. , ... poorly understood, condition with symptoms similar to urinary ...
(Date:7/9/2014)... the Spanish National Cancer Research Centre (CNIO) have discovered ... also regulates cell division in stratified epitheliathose that form ... the oesophagus or the vaginain adult organisms. According to ... Nature Communications , this factor could also play ... stratified epithelia of the oesophagus and skin. , The ...
(Date:7/9/2014)... Researchers studying critically ill children with traumatic injuries ... patients are likely to develop a hospital-acquired infection. ... Hospital and published online in June in the ... larger efforts that could lead to the clinical ... to prevent or reverse immune system damage following ...
Breaking Biology News(10 mins):CNIO scientists discover that pluripotency factor NANOG is also active in adult organisms 2Immune function predicts infection risk among child trauma patients 2Immune function predicts infection risk among child trauma patients 3
... (January 24, 2014) A new study published in ... egg production has increased over the past 50 years, the ... footprint. Researchers conducted a lifecycle analysis of U.S. egg production ... the complete lifecycle from crops to hens to the farm ...
... novel high-throughput screening process, scientists have for the first time ... a toxic eye protein that can lead to early onset ... can damage the eye,s optic nerve and cause vision loss ... for optic nerve damage. Researchers have implicated a ...
... the human gut and their impact on human health and ... research today. To address the most recent advances in this ... the world will come together at the Gut Microbiota for ... 9, 2014. The meeting is hosted by the Gut Microbiota ...
Cached Biology News:Landmark egg production study reveals reduction in environmental impact over past 50 years 2Landmark egg production study reveals reduction in environmental impact over past 50 years 3Researchers discover potential drug targets for early onset glaucoma 2Researchers discover potential drug targets for early onset glaucoma 3Attend the Gut Microbiota for Health World Summit 2014 2
(Date:1/15/2014)... January 15, 2014 Look inside the ... items for the lab, from fluid handling to instruments ... to ship when you order. , Preferred Solutions ... , from the L/S® model for precise flow control ...
(Date:1/15/2014)... This webinar will focus on EMA ... assessment in biosimilars. , Regulatory frameworks are evolving many ... however the complex nature of biopharmaceuticals makes the demonstration ... extremely challenging. Based on the specific aspects of biosimilar ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 The Microcompetition with ... major disease. One of these latent viruses is the Epstein ... arthritis (RA). Rheumatoid arthritis (RA) is a chronic inflammatory disease ... a study found that RA patients have high concentrations of ...
(Date:1/15/2014)... AudioNotch is the internet's leading provider of Notched Sound ... Patients listen to sound therapy that is tailor-made for ... to months, their tinnitus volume decreases. , AudioNotch has previously ... Notched White Noise. Now, AudioNotch is pleased to announce to ...
Breaking Biology Technology:Cole-Parmer Begins 2014 with the Release of Preferred Solutions 2Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3
... for a moment that Silicon Graphics Inc. (better ... days before its Altix 3000 family of servers and superclusters ... SGI rolled out the latest version of its popular ... the Mountain View-based company, whose only manufacturing facility is in ...
... Internet programming? Is tech still an exciting space to work ... with computers was an introductory programming class in 1979 using ... fledgling Internet when I started college in 1985. There have ... programming and the business of information technology as interesting and ...
... giant Eli Lilly & Company recently expressed concern to ... HIPAA privacy rule may impede clinical research trials. , ... and approve thousands of patient authorizations for use and ... Crosley, chief privacy officer of Indianapolis-based Eli Lilly. ...
Cached Biology Technology:SGI, Introduces Powerful High End Visualization Tools 2SGI, Introduces Powerful High End Visualization Tools 3Interview: Billpoint Founder Jason May on eBay, Open Source 2Interview: Billpoint Founder Jason May on eBay, Open Source 3Interview: Billpoint Founder Jason May on eBay, Open Source 4
...
... T4 DNA Ligase catalyzes the formation ... ATP between double-stranded DNAs with 3' hydroxyl ... DNA Ligase buffer optimizes ligation which can ... nucleic acids are not substrates for this ...
Bovine Renal Artery Smooth Muscle Cells (BRASMC) (>500,000 cells)...
... The Finnpipette BioControl is a ... technology. A complete liquid handling system ... twelve interchangeable tip cone modules. All ... tip cone modules fit one handle. ...
Biology Products: