A general mathematical formulation for the age-structured population model with genetic mutations is given. The probability of genetic mutations are expressed by a matrix named the "mutation matrix". The steady state of the Penna-type models with XOR-and OR-type mutations are analyzed. The mutation
Models for age structured populations with distributed maturation rates
โ Scribed by Richard E. Plant; L. T. Wilson
- Publisher
- Springer
- Year
- 1986
- Tongue
- English
- Weight
- 912 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0303-6812
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โฆ Synopsis
In the use of age structured population models for agricultural applications such as the modeling of crop-pest interactions it is often essential that the model take into account the distribution in maturation rates present in some or all of the populations. The traditional method for incorporating distributed maturation rates into crop and pest models has been the so-called "distributed delay" method. In this paper we review the application of the distributed delay formalism to the McKendrick equation of an age structured population. We discuss the mathematical properties of the system of ordinary differential equations arising out of the distributed delay formalism. We then discuss an alternative method involving modification of the Leslie matrix.
๐ SIMILAR VOLUMES
A continuous age-structured population model with two population groups, juveniles and adults, and with a dynamics for the resource, is considered. The only density dependence is through a uniform increase of the death rates. A complete description of the asymptotic behavior of the population dynami