L-shaped prey isocline in the Gause predator-prey experiments with a prey refuge
Language English Country England, Great Britain Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
25644756
DOI
10.1016/j.jtbi.2015.01.021
PII: S0022-5193(15)00030-2
Knihovny.cz E-resources
- Keywords
- Filippov solution, Lotka–Volterra model, Parameter estimation, Population dynamics, Rosenzweig–MacArthur model,
- MeSH
- Models, Biological * MeSH
- Paramecium physiology MeSH
- Predatory Behavior * MeSH
- Schizosaccharomyces physiology MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
Predator and prey isoclines are estimated from data on yeast-protist population dynamics (Gause et al., 1936). Regression analysis shows that the prey isocline is best fitted by an L-shaped function that has a vertical and a horizontal part. The predator isocline is vertical. This shape of isoclines corresponds with the Lotka-Volterra and the Rosenzweig-MacArthur predator-prey models that assume a prey refuge. These results further support the idea that a prey refuge changes the prey isocline of predator-prey models from a horizontal to an L-shaped curve. Such a shape of the prey isocline effectively bounds amplitude of predator-prey oscillations, thus promotes species coexistence.
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