ENVS 1126 Chapter : LBN Chapter 4
Document Summary
Population growth: population growth: a change in population size, population growth rate: amount the population has changed divided by the time it had to change, equilibrium: (births + immigration) = (deaths + emigration) Often, population growth is not zero: population growth curves graph how populations grow and determine: The population size now and in the future. 2014 pearson education, inc: constant growth, constant population growth rate: adding a constant number of individuals over each time period. Population number at the start + (a constant * time) Ex: start with 2 individuals and a constant growth rate of 2: at the end of 24 weeks the population will be 50 individuals. Starting population * a constant (e) = ending population. 2014 pearson education, inc: logistic growth, logistic growth: growth that levels off near carrying capacity (k) due to some control, as the population approaches k, growth slows. Population remains steady and growth equals 0.
