Ecosystems as adaptive living circuits

Fuente: arXiv
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Main Authors: Dhanuka, Ankit, Flamholz, Avi I., Murugan, Arvind, Goyal, Akshit
Format: Preprint
Published: 2025
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author Dhanuka, Ankit
Flamholz, Avi I.
Murugan, Arvind
Goyal, Akshit
author_facet Dhanuka, Ankit
Flamholz, Avi I.
Murugan, Arvind
Goyal, Akshit
contents Unlike many physical nonequilibrium systems, in biological systems, the coupling to external energy sources is not a fixed parameter but adaptively controlled by the system itself. We do not have theoretical frameworks that allow for such adaptability. As a result, we cannot understand emergent behavior in living systems where structure formation and non-equilibrium drive coevolve. Here, using ecosystems as a model of adaptive systems, we develop a framework of living circuits whose architecture changes adaptively with the energy dissipated in each circuit edge. We find that unlike traditional nonequilibrium systems, living circuits exhibit a phase transition from equilibrium death to a nonequilibrium dissipative state beyond a critical driving potential. This transition emerges through a feedback mechanism that saves the weakest edges by routing dissipation through them, even though the adaptive rule locally rewards the strongest dissipating edges. Despite lacking any global optimization principle, living circuits achieve near-maximal dissipation, with higher drive promoting more complex circuits. Our work establishes ecosystems as paradigmatic examples of living circuits whose structure and dissipation are tuned through local adaptive rules.
format Preprint
id arxiv_https___arxiv_org_abs_2506_22017
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Ecosystems as adaptive living circuits
Dhanuka, Ankit
Flamholz, Avi I.
Murugan, Arvind
Goyal, Akshit
Populations and Evolution
Disordered Systems and Neural Networks
Statistical Mechanics
Unlike many physical nonequilibrium systems, in biological systems, the coupling to external energy sources is not a fixed parameter but adaptively controlled by the system itself. We do not have theoretical frameworks that allow for such adaptability. As a result, we cannot understand emergent behavior in living systems where structure formation and non-equilibrium drive coevolve. Here, using ecosystems as a model of adaptive systems, we develop a framework of living circuits whose architecture changes adaptively with the energy dissipated in each circuit edge. We find that unlike traditional nonequilibrium systems, living circuits exhibit a phase transition from equilibrium death to a nonequilibrium dissipative state beyond a critical driving potential. This transition emerges through a feedback mechanism that saves the weakest edges by routing dissipation through them, even though the adaptive rule locally rewards the strongest dissipating edges. Despite lacking any global optimization principle, living circuits achieve near-maximal dissipation, with higher drive promoting more complex circuits. Our work establishes ecosystems as paradigmatic examples of living circuits whose structure and dissipation are tuned through local adaptive rules.
title Ecosystems as adaptive living circuits
topic Populations and Evolution
Disordered Systems and Neural Networks
Statistical Mechanics
url https://arxiv.org/abs/2506.22017