Question

Table 4. 1975 cohort of G. conden x 5. To visualize survivorship in a graph, it is often helpful to calculate the log of survivorship so that the graphed data are more reasonably scaled. Complete Table 4 to the right to log-transform the survivorship data for the 1975 cohort of G. scandens (round to the hundredths place). 0 Nx 82 42 1 2 3 4. Use your values from Table 4 and the grid below to create a survivorship curve for the 1975 cohort of G. scandent. Make sure to label the axes and provide appropriate scales. (Note: Values of N, that are not log-transformed should not be used in this graph.) Once your graph is complete, indicate the points on the graph that represent the years 1978, 1983, and 1987 with arrows and label them "1978, 1983." and "1987." Which type of survivorship curve best represents your graphed data? (Circle one): 1 II III 4 5 6 7 8 17 14 14 13 13 13 7 4 4 art I Ag. 4 Provide a brief explanation for your choice 9 10 11 12 13 14 15 16 2 2 1 0 1975 cohort of G. scandens 23 ce

Answer 1

Question3:

Answer:

Table: Log Nx with corresponding to year (x)

x	Nx	logNx
0	82	1.91
1	42	1.62
2	25	1.40
3	17	1.23
4	14	1.15
5	14	1.15
6	13	1.11
7	13	1.11
8	13	1.11
9	7	0.85
10	4	0.60
11	4	0.60
12	4	0.60
13	2	0.30
14	2	0.30

Question 4:

Answer:

2.00 Survivorship Curve 1.75 1975 1.50 1.25 Log of no. of survivors (log N) 1.00 - 1978 1983 0.75 - 0.50 1987 0.25 1 1 1 1 1 -2 2 6 8 10 12 14 16 O Time (years)

This graph is represented Type III of survivorship curve. The mortality rate for early age is high in this graph as no. of survivor decrease with time. but after some time it will somewhat constant.