Verhulst Factor

How it works

Dosage & preparation

Risks & contraindications

Other

Other

Other

Highlighted claims

• Verhulst mortality is random with respect to genotype and cannot distinguish good from bad genomes. — Catastrophic senescence and semelparity in the Penna aging model
• The Verhulst factor regulates population through an age-independent survival probability based on population size and carrying capacity. — Catastrophic senescence and semelparity in the Penna aging model
• The study also tested an implementation where Verhulst deaths were limited to newborns. — Catastrophic senescence and semelparity in the Penna aging model
• For VB runs, the birth rate was reduced to B = 3 to avoid extinction caused by overpopulation-driven newborn mortality. — Catastrophic senescence and semelparity in the Penna aging model
• Restricting Verhulst mortality to newborns removed periodic survival dips seen in some T greater than R simulations. — Catastrophic senescence and semelparity in the Penna aging model
• The Verhulst factor is defined as one minus the ratio of the current population to the maximum allowed population. — Cellular senescence in the Penna model of aging
• The main Verhulst implementation has limited biological interpretation when it is the only effective pre-threshold mortality process under T greater than R. — Catastrophic senescence and semelparity in the Penna aging model
• The combination model may be unstable at low p without adding a Verhulst factor. — Cellular senescence in the Penna model of aging
• Low p can make the model's steady-state behavior depend on a population-control mechanism outside the core recurrence. — Cellular senescence in the Penna model of aging