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:5/16/2017)... 2017  Veratad Technologies, LLC ( www.veratad.com ), an ... identity verification solutions, announced today they will participate as ... 15 thru May 17, 2017, in Washington ... Center. Identity impacts the lives of ... quickly evolving digital world, defining identity is critical to ...
(Date:4/19/2017)... York , April 19, 2017 ... as its vendor landscape is marked by the presence ... market is however held by five major players - ... Together these companies accounted for nearly 61% of the ... the leading companies in the global military biometrics market ...
(Date:4/13/2017)... 2017 According to a new market research report ... Identity Administration, and Authorization), Service, Authentication Type, Deployment Mode, Vertical, and Region ... expected to grow from USD 14.30 Billion in 2017 to USD 31.75 ... ... MarketsandMarkets Logo ...
Breaking Biology News(10 mins):
(Date:5/24/2017)... ... May 24, 2017 , ... ... as treasurer for the Mid-Atlantic chapter of the Healthcare Businesswomen’s Association ... , The HBA Mid-Atlantic chapter board meets in person once each quarter and ...
(Date:5/24/2017)... (PRWEB) , ... May 24, 2017 , ... ... systems are increasingly being developed with Wi-Fi connectivity to reduce the amount of ... room to room. In addition, compact mobile devices including infusion pumps, heart and ...
(Date:5/23/2017)... ... May 23, 2017 , ... ... source of human cardiovascular cells for research and the development of cardiac ... possible to generate large numbers of cardiomyocytes (hPSC-CMs). Due to varying differentiation ...
(Date:5/23/2017)... ... , ... Vortex Biosciences , provider of circulating tumor cell (CTC) capture ... using Vortex microfluidic technology ” in Nature Precision Oncology on May 8th. The ... and Dr. Matthew Rettig at the University of California, Los Angeles. The publication describes ...
Breaking Biology Technology: