Predator-prey Encounter Rates in Turbulent Environments: Consequences of Inertia Effects and Finite Sizes

Journal Article · Thu Oct 08 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3253968· OSTI ID:21322947

Pecseli, H L ^[1]; Trulsen, J ^[2]

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1. University of Oslo, Department of Physics, Box 1048 Blindern, N-0316 Oslo (Norway)
2. University of Oslo, Institute of Theoretical Astrophysics, Box 1029 Blindern, N-0315 Oslo (Norway)

Experimental as well as theoretical studies have demonstrated that turbulence can play an important role for the biosphere in marine environments, in particular also by affecting prey-predator encounter rates. Reference models for the encounter rates rely on simplifying assumptions of predators and prey being described as point particles moving passively with the local flow velocity. Based on simple arguments that can be tested experimentally we propose corrections for the standard expression for the encounter rates, where now finite sizes and Stokes drag effects are included.

• OSTI ID: 21322947
• Journal Information: AIP Conference Proceedings, Vol. 1177, Issue 1; Conference: Workshop on from Leonardo to ITER: Nonlinear and coherence aspects, Goeteborg (Sweden), 18-19 May 2009; Other Information: DOI: 10.1063/1.3253968; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPARATIVE EVALUATIONS
CORRECTIONS
ELECTRON COLLISIONS
FOKKER-PLANCK EQUATION
ION COLLISIONS
MOMENT OF INERTIA
PLASMA
PREDATOR-PREY INTERACTIONS
TURBULENCE
VELOCITY