Survivorship Curve

Plotting from a Life Expectancy table on a logarithmic scale versus gives a curve known as a survivorshipcurve. There are three general classes of survivorship curves, illustrated above.

1. Type I curves are typical of populations in which most mortality occurs among the elderly (e.g., humans in developed countries).

2. Type II curves occur when mortality is not dependent on age (e.g., many species of large birds andfish). For an infinite type II population, , but this cannot hold for a finite population.

3. Type III curves occur when juvenile mortality is extremely high (e.g., plant and animal speciesproducing many offspring of which few survive). In type III populations, it is often true that for small . In other words, life expectancy increases for individuals who survive their risky juvenile period.

• Heat Conduction Equation--Disk
• Heaviside Calculus
• Heaviside Step Function
• Heawood Conjecture
• Hebesphenomegacorona
• Hecke Algebra
• Hecke L-Function
• Hecke Operator
• Hecke Ring
• Hectogon
• Hedgehog
• Heegaard Diagram
• Heegaard Splitting
• Heegner Number
• Heesch Number
• Heesch's Problem
• Height
• Heilbronn Triangle Problem
• Heine-Borel Theorem
• Heine Hypergeometric Series
• Heisenberg Group
• Heisenberg Space
• Held Group
• Helen of Geometers
• Helicoid