Self-organization as the driving force for the evolution of the biosphere

Sidorova, A. E.; Mukhartova, Yu. V.

doi:10.3103/s0027134913050159

Cited by 6 publications

(6 citation statements)

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“…Biological evolution is a well-integrated system with a sequential series of events linked by cause and effect relationships [8]. Variability has a combinatorial nature and affects all levels of the structure both vertically and horizontally [2]. In fact, in the process of fixing mutations, the block principle of evolution works: the effect of new mutations depends on the spectrum of previous and present mutations (genomes are not able to adaptively evolve immediately across many genes, since this leads to large selective losses (Haldane's dilemma) [3]), and the sequence of mutations determines the "selection vector," which may correspond to either reversibility or irreversibility of evolutionary processes.…”

Section: The Model Of Natural Selection As a Percolation Systemmentioning

confidence: 99%

“…In physics, percolation is a phenomenon of the flow of fluids through porous materials, in which there is at least one continuous path through adjacent conductive nodes. Percolations can be observed in systems, including continuous ones, consisting of a large number of similar elements or continuous regions, if such distributed systems are, like a trigger, in one of two stable states [2]. The percolation phenomenon is determined by the flow mechanisms: the parameters of the structure through which the flow goes (by the number of nodes and bonds in the lattice), the flowing mobile medium, and the percolation threshold (critical concentration of the flowing medium) [128].…”

Section: The Model Of Natural Selection As a Percolation Systemmentioning

confidence: 99%

“…This determines the ability of a population as a complex system to self-organize under the influence of external perturbations and internal fluctuations [1]. The combinatorial source of variability is almost inexhaustible but is limited by reliable structural elements of the genetic system and the totality of interacting mutations [2]. Therefore, organisms are able to achieve only a small part of the theoretically admissible development trajectories, which makes evolution a fairly predictable process (outside critical conditions).…”

Section: Introductionmentioning

confidence: 99%

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Natural Selection as a Percolation System

et al. 2019

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The role of natural selection in biological evolution, which reflects contemporary biological concepts, is described systematically. A new approach based on the ideas regarding the physical phenomenon of percolation is suggested and developed to generalize the theoretical and mathematical description of this key problem of biology. The natural selection of optimal variants in the evolutionary mutation flow is considered as a percolation filter, a physical tool constituting the selection mechanism. The model is based on the concept of self-organization in hierarchical speciation structures, where trigger properties of a cell (node) as a valve define the deterministic component of fixing new mutations, and the drift defines the collective behavior of the percolation lattice nodes and connections (mutations) that introduces an element of randomness to the process of fixing new mutations in mutation flows. As a result of considering various values of the selection and drift coefficients, as well as the ratio of prohibiting and permitting mutations, the modes of fixing mutations in generations were obtained at the population level.

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Section: The Model Of Natural Selection As a Percolation Systemmentioning

confidence: 99%

Section: The Model Of Natural Selection As a Percolation Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Natural Selection as a Percolation System

et al. 2019

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“…This is the same situation that occurs for the interactions in protein complexes of photosystems and mitochondria or in neuronal sys tems.) In general, UESs as the systems of interacting hierarchical active media possess the following prop erties [5][6][7]:…”

Section: General Assumptions For Spatiotemporal Modelmentioning

confidence: 99%

“…The goal of the developed system approach is to analyze the UES stability based on the synergistic con cept of autowave self organization in distributed active media [5][6][7]. The UES stability threshold is directly associated with the interference of fluctuations in nonequilibrium open systems that transformed into "giant" ones [8].…”

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A model of a human-dominated urban ecosystem as an active medium

et al. 2015

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The concept of active media is used as a biophysical foundation for modeling spatiotemporal self organization in natural-anthropogenic ecosystems, appearing as establishment of regular dynamic structures with stable or unstable modes of development. Urban ecosystems are a hierarchy of interacting active media, with their nonlinearity being objectively formed owing to an extreme anthropogenic load, mismatch between the characteristic times and the evolutionary scales of the natural and anthropogenic components, as well as a complex system of positive and negative feedbacks between the constituent subsystems. The described model is purposefully simplified in order to use the Fitz-Hugh-Nagumo equation. The elaborated approach is of a general character and allows for a systematic description of spatiotemporal development of urban eco systems as distributed dissipative systems.

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Biosphere as a hierarchy of active media. Aspects of self-organization

Sidorova¹,

Твердислов²

2018

Proceedings of the International Conference "Mathematical Biology and Bioinformatics"

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Предложена и развита концепция эволюции биосферы как процесса самоорганизации в иерархически сопряженных активных средах. Подобный аналитический подход позволяет поновому рассмотреть идеи бифуркационного и, как следствие, сальтаторного развития популяций, сообществ организмов и биосферы в целом. Движущей силой эволюции биосферы -«нагнетающим насосом» -в модели служит иерархия распределенных активных сред, составленных совокупностью биоценозов. Активная среда создает фронтальное «давление естественного отбора». Нелинейный неравновесный фронт формирует гигантские флуктуации, с которыми «работает» фильтр естественного отбора, позволяющий выйти данной ветви эволюции на устойчивую траекторию развития и закрепиться на ней. В модели «естественный отбор» -пассивный элемент, формирующий самосогласованный поток эволюционного развития биосферы, движимый распределенным ресурсом свободной энергии стратифицированной активной среды биосферы. В своё устройство фильтр включает компоненты геосферы и компоненты самой биосферы. В отличие от классического филогенетического древа, отражающего принцип вертикальной эволюции биосферы, в данном подходе биосфера -единая живая система, эволюционирующая по законам, определяемым отбором, переносом генов, конвергенцией и дивергенцией -инструментами эволюции. Трехмерная сеть прямых и обратных связей позволяет рассматривать иерархию активных сред как эволюционирующую биосферу Ключевые слова: иерархия активных сред, автоволны, биосфера, эволюция.

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Self-organization as the driving force for the evolution of the biosphere

Cited by 6 publications

References 1 publication

Natural Selection as a Percolation System

Natural Selection as a Percolation System

A model of a human-dominated urban ecosystem as an active medium

Biosphere as a hierarchy of active media. Aspects of self-organization

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