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Sustained plankton blooms under open chaotic flows | | Emilio Hernandez-Garcia
; Cristobal Lopez
; | | Date: |
26 Nov 2003 | | Journal: | Ecological Complexity 1, 253 (2004) | | Subject: | Chaotic Dynamics; Populations and Evolution | nlin.CD q-bio.PE | | Abstract: | We consider a predator-prey model of planktonic population dynamics, of excitable character, living in an open and chaotic fluid flow, i.e., a state of fluid motion in which fluid trajectories are unbounded but a chaotic region exists that is restricted to a localized area. Despite that excitability is a transient phenomenon and that fluid trajectories are continuously leaving the system, there is a regime of parameters where the excitation remains permanently in the system, given rise to a persistent plankton bloom. This regime is reached when the time scales associated to fluid stirring become slower than the ones associated to biological growth. | | Source: | arXiv, nlin.CD/0311054 | | Services: | Forum | Review | PDF | Favorites | |
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