1. Following is the table of age specific birthrates for gray squirrel population, construct life table & survivorship curve. comment on the survivorship curve.
|
X (Age in years) |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
|
nx |
1000 |
300 |
150 |
90 |
40 |
10 |
0 |
X | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
nx | 1000 | 970 | 940 | 900 | 870 | 830 | 750 | 640 | 480 | 0 |
|
X |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
|
nx |
1000 |
850 |
740 |
650 |
550 |
450 |
350 |
245 |
150 |
0 |
|
X |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
|
nx |
1000 |
920 |
790 |
510 |
465 |
450 |
250 |
215 |
135 |
0 |
|
X (Age group in Years) |
0-5 |
6-10 |
11-15 |
16-20 |
21-25 |
26-30 |
31-35 |
36-40 |
41-45 |
46-50 |
|
nx |
4600 |
4000 |
2500 |
2100 |
1800 |
1300 |
1000 |
855 |
435 |
0 |
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