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PreprintCC BY 4.0arXiv

Resonant Amplification of Demographic Noise in Stochastic Common-Pool Resource Dynamics

  • Susanna C. Caruso
  • Fabio Menegazzo
  • Vito Latora
  • Samir Suweis
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Abstract

Common-pool resources are vulnerable to overexploitation, yet many social-ecological systems exhibit persistent oscillations. We introduce a stochastic eco-evolutionary model in which harvesting strategies and resource availability shape one another. In the infinite population limit the system approaches a stable state through damped oscillations. Demographic noise continually excites these modes, generating instead robust macroscopic quasi-cycles, whose frequencies depend on the noise ratio, the relative timescale between strategy and resource, and the harvesting pressure. The model reproduces the distinct frequency peaks, observed in empirical global fish-landings data for high- and low-income countries, showing that persistent environmental fluctuations can emerge naturally from demographic noise.

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Cite

BibTeXRIS
BibTeX
@misc{caruso2026resonant,
  title = {{Resonant Amplification of Demographic Noise in Stochastic Common-Pool Resource Dynamics}},
  author = {Susanna C. Caruso and Fabio Menegazzo and Vito Latora and Samir Suweis},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.41830},
  eprint = {2610.41830},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.41830},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Resonant Amplification of Demographic Noise in Stochastic Common-Pool Resource Dynamics
AU  - Susanna C. Caruso
AU  - Fabio Menegazzo
AU  - Vito Latora
AU  - Samir Suweis
PY  - 2026
DA  - 2026/10/30
PB  - arXiv
DO  - 10.48550/arxiv.2610.41830
UR  - https://arxiv.org/abs/2610.41830
AB  - Common-pool resources are vulnerable to overexploitation, yet many social-ecological systems exhibit persistent oscillations. We introduce a stochastic eco-evolutionary model in which harvesting strategies and resource availability shape one another. In the infinite population limit the system approaches a stable state through damped oscillations. Demographic noise continually excites these modes, generating instead robust macroscopic quasi-cycles, whose frequencies depend on the noise ratio, the relative timescale between strategy and resource, and the harvesting pressure. The model reproduces the distinct frequency peaks, observed in empirical global fish-landings data for high- and low-income countries, showing that persistent environmental fluctuations can emerge naturally from demographic noise.
ER  -