Model development A population of freshwater hydra growing in an aquarium in
the laboratory.
Population size N(t) when time is t.
This is a closed population.
undity
newborn females.)
R0=1, >1 or <1
10.7 Project population growth
Given a population with age structure and some other information (age-specific mortality rates and birthrates), we can project future changes of the population size.
How to construct a life table (cont.)?
3. calculate dx, a measure of agespecific mortality
4. Calculate agespecific mortality rate, qx
10.3 Different types of life table
Prediction of population growth
N(t)=N(0)Exp(rt) Give a time t, we can predict the population size.
An Example: Deer population: N(0)=300, r=0.5, after 5 years, what’s the population size?