text-only page produced automatically by LIFT Text Transcoder Skip all navigation and go to page contentSkip top navigation and go to directorate navigationSkip top navigation and go to page navigation
National Science Foundation
News
design element
News
News From the Field
For the News Media
Special Reports
Research Overviews
NSF-Wide Investments
Speeches & Lectures
NSF Current Newsletter
Multimedia Gallery
News Archive
News by Research Area
Arctic & Antarctic
Astronomy & Space
Biology
Chemistry & Materials
Computing
Earth & Environment
Education
Engineering
Mathematics
Nanoscience
People & Society
Physics
 

Email this pagePrint this page
All Images


Press Release 11-015
Mathematical Model Could Help Predict and Prevent Future Extinctions

Research could rescue fragile ecosystems and halt complex cascade events

Back to article | Note about images

Illustration showing how some extinctions or network failures can be avoided.

When an ecosystem is healthy, food, territory and other resources are balanced among species, as depicted in the top left diagram. If a key species or network component drastically decreases, an entire system may be disrupted as shown on the left. Aiding the troubled species or component, the approach illustrated in the top right image, may further strain the connections in the network, perpetuating the imbalance. A newly developed mathematical model suggests some extinctions or network failures can be avoided and the network can be rebalanced by suppressing, rather than enhancing, one or more members of the network, bottom right.

Credit: Zina Deretsky, National Science Foundation


Download the high-resolution JPG version of the image. (344 KB)

Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.



Email this pagePrint this page
Back to Top of page