Synchronization in ecological networks: A byproduct of Darwinian evolution?

Dercole F, Loiacono D, & Rinaldi S (2007). Synchronization in ecological networks: A byproduct of Darwinian evolution? International Journal of Bifurcation and Chaos 17 (7): 2435-2446. DOI:10.1142/S0218127407018506.

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Abstract

The paper considers the evolution of a particular class of networks of identical chaotic oscillators, namely that of ecological networks. In these networks, nodes represent patches where a certain number of plant and animal populations interact on ecological timescale, arcs represent migration flows due to dispersal, and Darwinian evolution is responsible for variations, on a longer evolutionary timescale, of the demographic parameters characterizing the populations. Up to now, this problem has been mainly studied with reference to single-population patches described by one-dimensional discrete-time models and by considering only the dispersal rates of migrating populations as an evolving trait. Here, we propose a method of investigation which allows to study multipopulation patches described by continuous-time models with evolving traits influencing various demographic parameters (including or not dispersal). The method is casted within the frame of the so-called master stability function approach for the analysis of synchronization of coupled systems, and the results obtained in a first and very simple application support the conjecture that evolution drives ecological networks toward weak forms of synchronization.

Item Type: Article
Uncontrolled Keywords: Chaotic dynamics; Darwinian evolution; Ecological networks; Synchronization
Research Programs: Evolution and Ecology (EEP)
Bibliographic Reference: International Journal of Bifurcation and Chaos; 17(7):2435-2446 (July 2007)
Depositing User: IIASA Import
Date Deposited: 15 Jan 2016 08:39
Last Modified: 23 Feb 2016 12:25
URI: http://pure.iiasa.ac.at/8147

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