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Increased Persistence via Asynchrony in Oscillating Ecological Populations with Long-range Interaction by Gupta, Anubhav; Banerjee, Tanmoy; Dutta, Partha Sharathi is a scholarly article available to read on EtoBox.

What is Increased Persistence via Asynchrony in Oscillating Ecological Populations with Long-range Interaction about?

Understanding the influence of structure of dispersal network on the species persistence and modeling a much realistic species dispersal in nature are two central issues in spatial ecology. A realistic dispersal structure which favors the persistence of interacting ecological systems has been studied in [Holland \& Hastings, Nature, 456:792--795 (2008)], where it is shown that a randomization of the structure of dispersal network in a metapopulation model of prey and predator increases the species persistence via clustering, prolonged transient dynamics, and amplitudes of population fluctuations. In this paper, by contrast, we show 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. To explore the effects of power-law coupling, we take a realistic ecological model, namely the Rosenzweig-MacArthur model in each patch (node) of the network of oscillators, and show that the coupled system is driven from synchrony to asynchrony with an increase in the power-law exponent. Moreover, to understand the relationship between species

Author

Gupta, Anubhav; Banerjee, Tanmoy; Dutta, Partha Sharathi

Published

2017

Language

EN