Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Complex population dynamics as a competition between multiple-time-scale phenomena.

Ioana Bena1, Michel Droz, Janusz Szwabiński

  • 1Theoretical Physics Department, University of Geneva, Quai E. Ansermet no. 24, 1211 Geneva 4, Switzerland. ioana.bena@physics.unige.ch

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|August 7, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Composition of the Influence Group in the <i>q</i>-Voter Model and Its Impact on the Dynamics of Opinions.

Entropy (Basel, Switzerland)·2024
Same author

Corrigendum to "Environmental, bystander and resident exposure from orchard applications using an agricultural unmanned aerial spraying system" [Sci. Total Environ. vol. 881 (10 July 2023), 163371].

The Science of the total environment·2023
Same author

Machine-Learning Solutions for the Analysis of Single-Particle Diffusion Trajectories.

The journal of physical chemistry letters·2023
Same author

Environmental, bystander and resident exposure from orchard applications using an agricultural unmanned aerial spraying system.

The Science of the total environment·2023
Same author

Opinion Evolution in Divided Community.

Entropy (Basel, Switzerland)·2022
Same author

Attribution Markers and Data Mining in Art Authentication.

Molecules (Basel, Switzerland)·2022
Same journal

Tension on dsDNA bound to ssDNA-RecA filaments may play an important role in driving efficient and accurate homology recognition and strand exchange.

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Amplitude-phase coupling drives chimera states in globally coupled laser networks [Phys. Rev. E 91, 040901(R) (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Shapes of sedimenting soft elastic capsules in a viscous fluid [Phys. Rev. E 92, 033003 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Attenuation of excitation decay rate due to collective effect [Phys. Rev. E 90, 022142 (2014)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Role of connectivity and fluctuations in the nucleation of calcium waves in cardiac cells [Phys. Rev. E 92, 052715 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Lattice Boltzmann approach for complex nonequilibrium flows [Phys. Rev. E 92, 043308 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
See all related articles

Environmental changes impact population evolution. Selection pressure and mutation amplitude critically influence extinction-alive phase transitions, with individual-based models revealing robust dynamics despite environmental fluctuations.

Area of Science:

  • Evolutionary Biology
  • Statistical Physics
  • Complex Systems

Background:

  • Understanding population dynamics in fluctuating environments is crucial for evolutionary biology.
  • Periodic environmental changes introduce complex dynamics, challenging simple models.
  • The interplay of selection pressure, mutation, and environmental variation shapes population survival.

Purpose of the Study:

  • To investigate the effects of selection pressure and mutation amplitude on a single-species population in a periodically changing environment.
  • To clarify how environmental variation characteristics influence the critical selection pressure for population survival.
  • To compare mean-field and individual-based models in capturing population evolution dynamics.

Main Methods:

  • Analytical and numerical studies of a single-species population on a 2D lattice.

Related Experiment Videos

  • Mean-field analysis to explore large-scale population behavior.
  • Individual-based modeling to incorporate stochasticity and correlations.

    • Main Results:

    • Environmental variation amplitude and period affect the critical selection pressure for the extinct-alive phase transition.
    • Individual-based models confirm the phase transition's robustness against inherent fluctuations.
    • Mutation amplitude significantly alters the critical selection pressure, influencing population survival thresholds.

    Conclusions:

    • The study elucidates the critical role of selection pressure and mutation in population persistence under environmental change.
    • Individual-based stochasticity does not prevent phase transitions, highlighting the importance of detailed modeling.
    • Phase diagrams reveal complex population parameter interactions, with distinct outcomes for smooth versus abrupt environmental shifts.