Dresden 2017 – wissenschaftliches Programm
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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 6: Poster
SOE 6.14: Poster
Montag, 20. März 2017, 17:00–20:00, P2-OG4
A behavioral spruce budworm predation model — Bhagyashree Hote1, Manas Joshi1, Reeve Ahmed1, Maleeha Aziz1, and •Jens Christian Claussen1,2 — 1Computational Life Science Program, Jacobs University Bremen — 2Computational Systems Biology, Jacobs University Bremen
The spruce budworm model has become a classical model of predation of spruce budworms by birds [1]. In this model, the sublinear onset of predation is motivated by a metaphor that birds predate the spruce budworms only if this food source reaches awareness among the predators. Here, 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, the model shows an attracting spiral node, which results in damped oscillations of the prey density towards the fixed points.
[1] Murray, Mathematical Biology (Springer, 2002).