Navigation Links
Refined biological evolution model
Date:7/21/2014

Models for the evolution of life are now being developed to try and clarify the long term dynamics of an evolving system of species. Specifically, a recent model proposed by Petri Krenlampi from the University of Eastern Finland in Joensuu accounts for species interactions with various degrees of symmetry, connectivity, and species abundance. This is an improvement on previous, simpler models, which apply random fitness levels to species. The findings published in EPJ E demonstrate that the resulting replicator ecosystems do not appear to be a self-organised critical model, unlike the so-called Bak Sneppen model, a reference in the field. The reasons for this discrepancy are not yet known.

The author studied so-called 'replicator networks' to incorporate the notion of species interaction. These account for the level of fitness for any species -- whether or not they interact with others -- and for the consequences for regulating the abundance of the species.

Krenlampi specifically focused on replicator systems that were incompletely connected. In addition, the species were endowed with different degrees of symmetry of interactionsbe it symmetric interactions such as those found in competing or symbiotic species, or anti-symmetric interactions in the case of pray-predator relations, or possibly producer-consumer relations.

Replicator equations have previously been applied in the study of evolution. However, completely connected systems tend to yield small ecosystems. In reality, not all species interact with all other species -- referred to as incompletely connected species -- and they become large and complex. In particular, the author found that anti-symmetric interactions resulted in large, stable ecosystems, whereas symmetric systems remained small.

The properties of new species have been introduced through random numbers. In reality, species evolve from previous species through some kind of transformation or mutation. Thus, future models should reflect the fact that any new species should partially inherit the properties of a preceding species.


'/>"/>
Contact: Laura Zimmermann
laura.zimmermann@springer.com
49-622-148-78414
Springer
Source:Eurekalert

Related biology news :

1. Dating is refined for the Atapuerca site where Homo antecessor appeared
2. Unraveling biological networks
3. New method for estimating parameters may boost biological models
4. A project to research biological and chemical aspects of microalgae to fuel approach
5. EPA to highlight innovative ways to detect and respond to biological threats
6. Salk scientists redraw the blueprint of the bodys biological clock
7. Weeding out invasive species with classical biological control
8. Crime and punishment: The neurobiological roots of modern justice
9. Electric charge disorder: A key to biological order?
10. Florida Tech biological sciences professor earns $257,000 NSF grant to study coral diseases
11. Like curry? New biological role identified for compound used in ancient medicine
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/5/2017)... YORK , April 5, 2017 Today ... is announcing that the server component of the HYPR ... known for providing the end-to-end security architecture that empowers ... HYPR has already secured over 15 million ... makers including manufacturers of connected home product suites and ...
(Date:4/3/2017)... , April 3, 2017  Data captured ... engineering platform, detected a statistically significant association ... prior to treatment and objective response of ... potential to predict whether cancer patients will ... treatment, as well as to improve both pre-infusion ...
(Date:3/30/2017)... Trends, opportunities and forecast in this market ... (fingerprint, AFIS, iris recognition, facial recognition, hand geometry, vein ... use industry (government and law enforcement, commercial and retail, ... others), and by region ( North America ... Pacific , and the Rest of the World) ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... (PRWEB) , ... October 12, ... ... ) has launched Rosalind™, the first-ever genomics analysis platform specifically designed for ... complexity. Named in honor of pioneering researcher Rosalind Franklin, who made a ...
(Date:10/11/2017)... , ... October 11, 2017 , ... ComplianceOnline’s Medical Device ... on 7th and 8th June 2018 in San Francisco, CA. The Summit brings together ... as several distinguished CEOs, board directors and government officials from around the world to ...
(Date:10/11/2017)... ... ... Disappearing forests and increased emissions are the main causes of the evolving air ... living in larger cities are affected by air pollution related diseases. , That is ... globally - decided to take action. , “I knew I had to take action ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... targeted antibody-drug conjugate (ADC) therapeutics, today confirmed licensing rights that give it ... Nanoparticle), a technology developed in collaboration with Children’s Hospital Los Angeles (CHLA). ...
Breaking Biology Technology: