1. Lucshman Raveendran Dhruv Jasani 14.2 MEASURING AND MODELLING POPULATION CHANGES

2. Factors that Affect Population NatalityMortalityImmigrationEmigration Population Population Dynamics

3. Natality Mortality Closed Population Open Population NatalityImmigrationEmigrationMortality

4. Fecundity The potential for a species to produce offspring in one lifetime. Species that live older can have more reproductive cycles but usually produce less offspring. Age Number of Survivors Age Number of Survivors Age Number of Survivors High Mortality At Older Age Uniform Mortality High Morality At Young Age High Fecundity Low Fecundity

5. Omg math!

6. Population Growth Models GeometricExponentialLogarithmic

7. Geometric Growth Omg more math!

8. Exponential Growth Time Population math y u do dis

9. Logarithmic Growth Produces Sigmoid Curve ‘S’ Shaped i cry evertim math

10. Lag Phase Log Phase Stationary Phase The initial stage in which population growth rates are slow as a result of a small population size The stage in which population growth rates are very rapid The phase in which population growth rates decrease as the population size reaches the carrying capacity; the defining characteristic of logistic population growth Dynamic Equilibrium Birth rate=Death rate No net change in population size