Matrix population model with density-dependent recruitment for assessment of age-structured wildlife populations

✍ Scribed by A.L. Jensen

• Publisher: Springer
• Year: 1997
• Tongue: English
• Weight: 554 KB
• Volume: 59
• Category: Article
• ISSN: 1522-9602
• DOI: 10.1016/s0092-8240(96)00071-7

✦ Synopsis

A logistic density-dependent matrix model is developed in which the matrices contain only parameters and recruitment is a function of adult population density. The model was applied to simulate introductions of white-tailed deer into an area; the fitted model predicted a carrying capacity of 21.5 deer, which was close to the observed carrying capacity of 220 deer. The rate of population increase depends on the dominant eigenvalue of the Leslie matrix, and the age structure of the simulated population approaches a stable age distribution at the carrying capacity, which was similar to that generated by the Leslie matrix. The logistic equation has been applied to study many phenomena, and the matrix model can be applied to these same processes. For example, random variation can be added to life history parameters, and population abundances generated with random effects on fecundity show both the affect of annual variation in fecundity and a longer-term pattern resulting from the age structure.