کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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4502688 | 1320592 | 2008 | 10 صفحه PDF | دانلود رایگان |
The stability of population oscillations in ecological systems is considered. Experiments suggest that in many cases the single patch dynamics of predator–prey or host–parasite systems is extinction prone, and stability is achieved only when the spatial structure of the population is expressed via desynchronization between patches. A few mechanisms have been suggested so far to explain the inability of dispersal to synchronize the system. Here we compare a recently discovered mechanism, based on the dependence of the angular velocity on the oscillation amplitude, with other, already known conditions for desynchronization. Using a toy model composed of diffusively coupled oscillators we suggest a classification scheme for stability mechanisms, a scheme that allows for either a priori (based on the system parameters) or a posteriori (based on local measurements) identification of the dominant process that yields desynchronization.
Journal: Theoretical Population Biology - Volume 74, Issue 3, October 2008, Pages 273–282