Navigation Links
Mathematical model could help predict and prevent future extinctions
Date:1/25/2011

In an effort to better understand the dynamics of complex networks, scientists have developed a mathematical model to describe interactions within ecological food webs. This research, performed by Northwestern University physics professor Adilson Motter and his student, Sagar Sahasrabudhe, is published in the January 25 issue of Nature Communications. The work illustrates how human intervention may effectively aid species conservation efforts.

"Our study provides a theoretical basis for management efforts that would aim to mitigate extinction cascades in food web networks. There is evidence that a significant fraction of all extinctions are caused not by a primary perturbation but instead by the propagation of a cascade," said Motter.

Extinction cascades are often observed following the loss of a key species within an ecosystem. As the system changes to compensate for the loss, availability of food, territory and other resources to each of the remaining members can fluctuate wildly, creating a boom-or-bust environment that can lead to even more extinctions. According to the study, more than 70 percent of these extinctions are preventable, assuming that the system can be brought into balance using only available resources--no new factors may be introduced.

Motter explained further, "We find that extinction cascades can often be mitigated by suppressing--rather than enhancing--the populations of specific species. In numerous cases, it is predicted that even the proactive removal of a species that would otherwise be extinct by a cascade can prevent the extinction of other species."

The finding may seem counterintuitive to conservationists because the compensatory actions seem to inflict further damage to the system. However, when the entire ecosystem is considered, the effect is beneficial. This news holds promise for those charged with maintaining Earth's biodiversity and natural resources--the health of which can co
'/>"/>

Contact: Lisa Van Pay
lvanpay@nsf.gov
703-292-8796
National Science Foundation
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Mathematical model explains how complex societies emerge, collapse
2. Consortium studying mathematical modeling of influenza infection
3. Mathematical model may result in better environment measures for the Baltic
4. New mathematical model helps biologists understand how coral dies in warming waters
5. Mathematical keys to a sixth sense -- the lateral-line system
6. Tumor growth and chemo response may be predicted by mathematical model
7. Image processing and mathematical morphology in new text by NJIT professor
8. Image processing and mathematical morphology in new text by NJIT prof
9. Purdue team creates engineered organ model for breast cancer research
10. Go figure: Math model may help researchers with stem cell, cancer therapies
11. Simple, ingenious way to create lab-on-a-chip devices could become a model for teaching and research
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Mathematical model could help predict and prevent future extinctions
(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: