BIOB50H3 Chapter Notes - Chapter 10: Survivorship Curve, Life Table, Fecundity
Document Summary
Extensive life table data exist for people: birth season has survivorship effects. Concept 10. 2: life table data can be used to project the future age structure, size, and growth rate of a population. Age structure: age class members of a population whose ages fall within a certain range, age structure proportions of the population in each age class. Influences whether a population increases or decreases in size. Populations grow at fixed rates when age-specific birth and death rates are constant over time: stable age distribution when the age structure of a population does not change from one year to the next. Birth and death rates and hence population growth rates can change when environmental conditions change: growth and death rates can change affected by abiotic and biotic factors, hunting or drought. Concept 10. 3: populations can grow exponentially when conditions are favorable, but exponential growth cannot continue indefinitely.
