Navigation Links
Scientists find formula to uncover our planet's past and help predict its future
Date:5/26/2009

Studies of climate evolution and the ecology of past-times are often hampered by lost information lost variables needed to complete the picture have been long thought untraceable but scientists have created a formula which will fill in the gaps of our knowledge and will help predict the future.

A novel method of reconstructing missing data will shed new light on how and why our climate moved us on from ice ages to warmer periods as researchers will be able to calculate lost information and put together a more complete picture.

Similarly they will be able to tackle ecological studies that are currently incomplete or distorted. Why do populations of animals like rabbits and foxes fluctuate so dramatically? Which factors most heavily influence population decline and, eventually, lead to extinction?

Published in the June issue of New Journal of Physics (co-owned by the Institute of Physics and German Physical Society) the paper 'Recovering "lost" information in the presence of noise: Application to rodent-predator dynamics' offers a solution to the problem of reconstructing missing or lost information in studies of dynamical systems such as the Earth's climate or animal populations.

It could potentially uncover new findings on topical scientific issues such as climate change and the extreme population fluctuations in some animal species.

By developing a novel Hamiltonian approach to the problem, using a mathematical algorithm, assuming the dynamics of each system has unknown parameters and that the data are distorted by random fluctuations, the researchers from California and Lancaster were able to successfully recreate measurements in a study on a vole-mustelid community.

Many small mammalian species have cyclic population dynamics, periodically oscillating between large and small communities, a behavioral phenomenon which has puzzled ecologists for decades. Reconstructed data on such predator-prey dynamics could now give new insight into why some species suddenly decline.

Climate evolution is subject to similar cyclical variations, which could be uncovered by applying the method to measuring the distribution of isotopes in sediments taken from the ocean floor, potentially giving further insight into the reasons behind climate change.

As the researchers write, "The method will also be applicable quite generally to cases where some state variables could not be recorded." These could include, not only climate change and ecology, but also contexts such as populations at risk from epidemics and rocket motors for new space crew exploration vehicles.


'/>"/>

Contact: Lena Weber
lena.weber@iop.org
44-207-470-4896
Institute of Physics
Source:Eurekalert

Related biology news :

1. Scientists announce top 10 new species, issue SOS
2. Scientists announce top 10 new species; issue SOS
3. Queens scientists discover eco-friendly wood dissolution
4. Stanford scientists find heat-tolerant coral reefs that may resist climate change
5. Scientists work to plug microorganisms into the energy grid
6. Scientists identify worlds largest leatherback turtle population
7. UCSB scientists document fate of huge oil slicks from seeps at coal oil point
8. Scientists urge global action to preserve water supplies for billions worldwide
9. Scientists aim to bring indigenous people into climate change monitoring and policy
10. Scientists urge world leaders to respond cooperatively to Pacific Ocean threats
11. UCLA scientists discover ultrasonic communication among frogs
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/16/2017)... , Feb. 16, 2017  Genos, a ... announced that it has received Laboratory Accreditation from ... Accreditation is presented to laboratories that meet stringent ... demonstrate scientifically rigorous processes. "Genos is ... in laboratory practices. We,re honored to be receiving ...
(Date:2/13/2017)... -- Former 9/11 Commission border counsel and Special Counsel ... of Identity Strategy Partners, LLP, today releases the ... Order: Protecting the Nation From Foreign Terrorist Entry Into ... President Trump,s ,Travel Ban, Executive Order gains more notoriety ... travel ban, it is important that our national discourse ...
(Date:2/8/2017)... , Feb. 8, 2017 About Voice Recognition ... to match it against a stored voiceprint template. ... pitch, cadence, and tone are compared to distinguish ... hardware installation, as most PCs already have a ... transactions. Voice recognition biometrics are most likely to ...
Breaking Biology News(10 mins):
(Date:2/23/2017)... ... February 23, 2017 , ... ... clearance to begin marketing the SPEAC® System, the Brain Sentinel® Seizure Monitoring and ... or in healthcare facilities during periods of rest. A lightweight, non-invasive monitor is ...
(Date:2/23/2017)... ... 23, 2017 , ... The Greater Gift Initiative, Inc , (GGI) a ... Research . GGI's mission is to advance global health and highlight the greater good ... honor of each clinical trial volunteer. The vision of GGI is to serve as ...
(Date:2/23/2017)... ... February 22, 2017 , ... ... have been named Fellows of the Society this year, the Fellows Committee has ... multidisciplinary fields of optics, photonics, and imaging as well as their service to ...
(Date:2/22/2017)... , Feb. 22, 2017  PrimeVax Immuno-Oncology, Inc. ... be presenting at the Annual Biocom Global Life Science ... 2, at 11:15 AM, at the Torrey Pines Lodge, ... to the organizers at Biocom who have chosen our ... symposium of biotechnology companies, investors, and clinical researchers," said ...
Breaking Biology Technology: