Spatial structures in a simple model of population dynamics for parasite-host interactions
| Autor: | Royce K.P. Zia, Jiajia Dong, Nyles Breecher, Brian Skinner, Beate Schmittmann |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
education.field_of_study
Drift velocity Extinction Statistical Mechanics (cond-mat.stat-mech) Host (biology) Dynamics (mechanics) Population Populations and Evolution (q-bio.PE) General Physics and Astronomy Deterministic dynamics FOS: Physical sciences Biology Fecundity Quantitative Biology::Cell Behavior Order (biology) Evolutionary biology FOS: Biological sciences Parasite hosting Quantitative Biology::Populations and Evolution education Quantitative Biology - Populations and Evolution Condensed Matter - Statistical Mechanics |
| Zdroj: | EPL |
| Popis: | Spatial patterning can be crucially important for understanding the behavior of interacting populations. Here we investigate a simple model of parasite and host populations in which parasites are random walkers that must come into contact with a host in order to reproduce. We focus on the spatial arrangement of parasites around a single host, and we derive using analytics and numerical simulations the necessary conditions placed on the parasite fecundity and lifetime for the populations long-term survival. We also show that the parasite population can be pushed to extinction by a large drift velocity, but, counterintuitively, a small drift velocity generally increases the parasite population. 6 pages, 6 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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