Berlin 2018 – wissenschaftliches Programm
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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 7: Poster
SOE 7.20: Poster
Montag, 12. März 2018, 17:00–20:00, Poster E
Behavioral spruce budworm predation models — •Bhagyashree Hote1 and Jens Christian Claussen2 — 1Computational Life Science Program, Jacobs University Bremen, Germany — 2Computational Systems Biology, Jacobs University Bremen, Germany
The classical spruce budworm model of predation by birds [Murray, Mathematical Biology, 2002] describes a sublinear onset of predation, motivated by a metaphor that birds predate the spruce budworms only if this food source reaches awareness among the predators. Here we base on our previous extension [Hote et al., 2017], where we explicitely introduce the fraction of birds that are aware of the additional food source as an additional dynamical variable and formulate a plausible dynamics for its increase and decay. For suitable parameters, this model shows an attracting spiral node, which results in damped oscillations of the prey density towards the fixed points. Here we discuss the spatial extension of the model, as well as the transition towards the original model.