Population Ecology.pdf - Name: Date: Population Ecology...

Name:
Date:
Population Ecology
Exercise 1: Modeling Population Growth
Data Table 1. Population Growth Model.
Generatio
n
Initial population
size
(N)
Number of
births
(B)
Number of
deaths
(D)
Final population
size
(N + B - D)
Change in
population size
(Final - Initial)
1 4 2 0 6 2
2 6 1 0 7 1
3 7 3 3 7 0
4 7 2 2 7 0
5 7 3 0 10 3
6 10 7 1 16 6
7 16 5 0 21 5
8 21 2 8 15 -6
9 15 5 3 17 2
10 17 5 2 20 3
11 20 6 6 20 0
12 20 3 4 19 -1
13 19 6 4 21 2
14 21 5 5 21 0
15 21 9 2 28 7
16 28 16 3 41 13
17 41 12 12 41 0
18 41 17 4 54 13
19 54 15 12 57 3
20 57 20 6 71 14
21 71 22 17 76 5
22 76 24 15 85 9
23 85 22 20 87 2
24 87 25 16 96 9
25 96 31 20 107 11
26

27
28
29
30
Data Table 2. Population Size and Generations: Scatter Plot.
Population size
Data Table 3. Population Size and Generations: Bar Graph.
Population Size

Questions
A. How many generations did it take to reach a population size of 100?
B. Consider the mode of reproduction modeled in your population. Would sexual reproduction
or asexual reproduction likely be the cause of a birth? Are individuals of the species likely or
unlikely to have separate male and female sexes?