Random: The rarest dispersion pattern is random because resources in nature are rarely randomly spaced.

TLS Online TPP Program

#Id: 1968

#XL - T Zoology

Survivorship (lx) is calculated by dividing the number of individuals in an age class by the number in the original cohort;

TLS Online TPP Program

#Id: 1969

#XL - T Zoology

The mortality rate (qx) within each age class is estimated by the variable

TLS Online TPP Program

#Id: 1970

#XL - T Zoology

This mortality rate allows us to determine whether mortality increases with age, decreases with age, or is independent of age

TLS Online TPP Program

#Id: 1971

#XL - T Zoology

The number alive during an age class can be estimated by the relationship:

TLS Online TPP Program

#Id: 1972

#XL - T Zoology

Life expectancy - The average number of additional age classes an individual can expect to live at each age.

TLS Online TPP Program

#Id: 1973

#XL - T Zoology

T_x (total years lived) is calculated by summing the values of Lx in age class x and all subsequent (older) age classes.