Can someone help me with this life table? Complete the above cohort life table f
ID: 216342 • Letter: C
Question
Can someone help me with this life table?
Complete the above cohort life table for this population, including calculations of survivorship schedule, the survival probabilities (P) and fertilities (F).
Then, using this life table, determine the net reproductive rate and the generation time.
Obtain an estimate for the instantaneous rate of increase for this population (individuals/(individuals * time). What is the assumption you must make to arrive at this estimate?
Is this population increasing or declining in abundance – how do you know?
Given an initial population of 50 one-year-olds and 20 two-year olds and the life table you created above, calculate how the number of individuals in each age class changes from time (t) to time (t+1).
Age S(x) b(x) 0 500 0 250 5 25 0 25 0Explanation / Answer
The net reproductive rate is 3.6 offspring.
The generation time is 7.2/3.6 = 2 years.
The assumption is that there is no imigration, constant age specific number of births each year, and stationary age structure size.
The population is declining in abundance because the survival probability is decreasing with time.
Life Table Age S(x) b(x) P 0 500 0 1 1 250 5 0.5 2 25 2 0.05 3 0 0 0