Survivability of a metapopulation under local extinctions.

@article{Kundu2017SurvivabilityOA,
  title={Survivability of a metapopulation under local extinctions.},
  author={Srilena Kundu and Soumen Majhi and Sourav Kumar Sasmal and Dibakar Ghosh and Biswambhar Rakshit},
  journal={Physical review. E},
  year={2017},
  volume={96 6-1},
  pages={
          062212
        }
}
A metapopulation structure in landscape ecology comprises a group of interacting spatially separated subpopulations or patches of the same species that may experience several local extinctions. This makes the investigation of survivability (in the form of global oscillation) of a metapopulation on top of diverse dispersal topologies extremely crucial. However, among various dispersal topologies in ecological networks, which one can provide higher metapopulation survivability under local… 
Complex evolutionary dynamics due to punishment and free space in ecological multi-games
The concurrence of ecological and evolutionary processes often arises as an integral part of various biological and social systems. We here study eco-evolutionary dynamics by adopting two
Augmentation of dynamical persistence in networks through asymmetric interaction
TLDR
This work provides a mechanism that deals with asymmetry in the interaction of active and inactive groups to enhance the dynamical robustness of aging networks comprising different groups of dynamical units coupled locally, non-locally or globally.
Additional repulsion reduces the dynamical resilience in the damaged networks.
TLDR
It is found that the addition of the repulsive link enhances the critical threshold of the aging transition of diffusively coupled oscillators, which indicated that the dynamical robustness of the coupled network decreases with the presence of theRepulsive interaction.
An analysis of threats, strategies, and opportunities for African rhinoceros conservation
TLDR
The common threats to rhinoceros conservation identified in this paper include poaching, habitat fragmentation and loss, international trade in illegal rhino products, and external shocks such as global financial recessions and pandemics.
Enhancement of dynamical robustness in a mean-field coupled network through self-feedback delay.
TLDR
This article presents a control mechanism based on delayed negative self-feedback, which can effectively enhance dynamical robustness in a mean-field coupled network of active and inactive oscillators and demonstrates that the mechanism is independent of coupling topology.
Trade-off between filtering and symmetry breaking mean-field coupling in inducing macroscopic dynamical states
We study the manifestation of the competing interaction between the mean-field intensity and the symmetry breaking coupling on the phenomenon of aging transition in an ensemble of limit-cycle
Extreme events in dynamical systems and random walkers: A review
Low pass filtering mechanism enhancing dynamical robustness in coupled oscillatory networks.
TLDR
In this work, an efficient mechanism, called the low pass filtering technique, is proposed to enhance the dynamical activity of damaged networks of coupled oscillators and the network survivability is ensured.
...
...

References

SHOWING 1-10 OF 75 REFERENCES
Local extinction in a metapopulation context: an empirical evaluation
TLDR
A modified view of metapopulation dynamics is suggested, in which local extinction is more an incidental than a central feature and regional persistence depends critically upon parameters influencing extinction and colonization rates.
Single‐species metapopulation dynamics: concepts, models and observations
TLDR
This paper outlines a conceptual and theoretical framework for single-species metapopulation dynamics based on the Levins model and its variants, which allows one to estimate species' colonization and extinction rates on islands colonized from mainland.
Increased persistence via asynchrony in oscillating ecological populations with long-range interaction.
TLDR
It is shown that a deterministic network topology in a metapopulation can also favor asynchrony and prolonged transient dynamics if species dispersal obeys a long-range interaction governed by a distance-dependent power law.
The metapopulation capacity of a fragmented landscape
TLDR
The metapopulation capacity is introduced, a new measure for highly fragmented landscapes, which is rigorously derived from metAPopulation theory and can easily be applied to real networks of habitat fragments with known areas and connectivities.
Balance of Interactions Determines Optimal Survival in Multi-Species Communities
TLDR
The network transitions from a completely extinct system to one where all nodes are active, as the mean interaction strength goes from negative to positive, with the transition getting sharper for increasing C and decreasing σ, and the total population displays distinct non-monotonic scaling behaviour with respect to the product μC.
Strong effect of dispersal network structure on ecological dynamics
TLDR
It is shown that, by contrast, randomizing the structure of dispersal networks in a model of predators and prey tends to favour asynchrony and prolonged transient dynamics, with resulting effects on the amplitudes of population fluctuations.
Dispersion and Population Interactions
  • S. Levin
  • Environmental Science
    The American Naturalist
  • 1974
The spatial component of environment, often neglected in modeling of ecological interactions, in general operates to increase species diversity. This arises due to the heterogeneity of the
Effect of Landscape Structure on Species Diversity
TLDR
The spatial patterns of species distribution in fragmented landscapes, assuming a neutral community model, are addressed, and it is shown that the first and second commonest species have approximately self-similar spatial distributions across scales, with the fractal dimensions of the support of the first- and second-commonest species being very robust to changes in the spatial pattern of the landscape.
Spatial network structure and metapopulation persistence.
Synchrony in population dynamics
TLDR
The significance of the Moran effect and dispersal in explaining the observed regional synchrony is explored using a metapopulation system and it is difficult to tell apart whether an observed negative correlation between the level of synchrony and distance among the compared populations is caused by dispersal alone, or both dispersal and Moran’s effect acting together.
...
...