Two predator-prey difference equations considering delayed population growth and starvation
| Autor: | Rolf Heller |
|---|---|
| Rok vydání: | 1978 |
| Předmět: |
Statistics and Probability
Time Factors Overlapping generations model Biology Models Biological Population density Stability (probability) General Biochemistry Genetics and Molecular Biology Predation Statistics medicine Animals Carrying capacity Population growth Population Growth Predator Population Density Starvation Appetitive Behavior General Immunology and Microbiology Ecology Applied Mathematics General Medicine Predatory Behavior Modeling and Simulation medicine.symptom General Agricultural and Biological Sciences |
| Zdroj: | Journal of Theoretical Biology. 70:401-413 |
| ISSN: | 0022-5193 |
| DOI: | 10.1016/0022-5193(78)90249-7 |
| Popis: | A predator-prey model with overlapping generations is proposed, assuming delayed population growth and a new estimate of the number of predators starving to death. Differences among simulation results caused by manipulation of values of coefficients are discussed. The main results are: (i) although conceptually predator density is not associated so closely with prey density as in several other models (mainly by mortality of predators and not by their natality), the model shows only a few changes in its dynamic properties. (ii) Both the capacity of predators to resist starvation and the carrying capacity of prey have an important influence on the stability of the simulation results. (iii) Stable limit cycles were found without assuming influences of carrying capacity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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