Oscillations and waves in a virally infected plankton system Part I: The lysogenic stage

Autor(en): {[Anonymous]
Stichwörter: Ecology; Environmental Sciences & Ecology
Erscheinungsdatum: 2004
Volumen: 1
Ausgabe: 3
Startseite: 211
Seitenende: 223
A model of phytoplankton-zooplankton dynamics is considered for the case of lysogenic viral infection of the phytoplankton population. The phytoplankton population is split into a susceptible (S) and an infected (1) part. Both parts grow logistically, limited by a common carrying capacity. Zooplankton (Z) is grazing on susceptibles and infected. The local analysis of the S-I-Z differential equations yields a number of stationary and/or oscillatory regimes and their combinations. Correspondingly interesting is the spatio-temporal behaviour, modelled by deterministic and stochastic reaction-diffusion equations. Spatial spread or suppression of infection will be presented just as well as competition of concentric and/or spiral population waves with non-oscillatory sub-populations for space. The external noise can enhance the survival and spread of susceptibles and infected, respectively, that would go extinct in a deterministic environment. (c) 2004 Elsevier B.V. All rights reserved.
2nd Alcala International Conference on Mathematical Ecology (AICME2), Univ Alcala, Madrid, SPAIN, SEP 05-09, 2003
ISSN: 1476945X
DOI: 10.1016/j.ecocom.2004.03.002

Show full item record

Google ScholarTM