Rabbits

Predator Prey Data

="Predator-prey interactions"
This predator-prey spreadsheet was generated by Jocelyn Paine, using Excelsior, after an original at http://www.csun.edu/science/ref/spreadsheets/xls/predator_prey.xls. There's an explanation of how it works at http://www.j-paine.org/excelsior/repository/rabbits/index.html .
="Initial number of rabbits"
="Initial number of foxes"
="Birth rate of rabbits"
="Death rate of rabbits"
="Birth rate of foxes"
="Death rate of foxes"
="Limit of rabbit population"
2000
30
5
5
1
1
10000
="Time interval"
="Number of rabbits"
="Number of foxes"
="Rabbit births"
="Rabbit deaths"
="Fox births"
="Fox deaths"
1
2000
30
80
150
6
2
2
1930
34
78
166
7
2
3
1841
39
75
182
7
2
4
1735
45
72
194
8
2
5
1613
50
68
203
8
3
6
1478
56
63
206
8
3
7
1334
61
58
204
8
3
8
1188
66
52
197
8
3
9
1043
71
47
185
7
4
10
905
75
41
169
7
4
11
776
78
36
151
6
4
12
661
80
31
132
5
4
13
560
81
26
114
5
4
14
472
82
23
97
4
4
15
398
82
19
81
3
4
16
336
81
16
68
3
4
17
285
79
14
57
2
4
18
242
78
12
47
2
4
19
207
76
10
39
2
4
20
178
73
9
33
1
4
21
154
71
8
27
1
4
22
134
69
7
23
1
3
23
118
66
6
19
1
3
24
104
64
5
17
1
3
25
93
61
5
14
1
3
26
83
59
4
12
0
3
27
75
56
4
11
0
3
28
68
54
3
9
0
3
29
62
51
3
8
0
3
30
57
49
3
7
0
2
31
53
47
3
6
0
2
32
50
45
2
6
0
2
33
47
43
2
5
0
2
34
44
41
2
4
0
2
35
42
39
2
4
0
2
36
40
37
2
4
0
2
37
38
36
2
3
0
2
38
36
34
2
3
0
2
39
35
32
2
3
0
2
40
34
31
2
3
0
2
41
33
29
2
2
0
1
42
32
28
2
2
0
1
43
32
27
2
2
0
1
44
31
25
2
2
0
1
45
31
24
2
2
0
1
46
30
23
2
2
0
1
47
30
22
2
2
0
1
48
30
21
1
2
0
1
49
30
20
1
1
0
1
50
30
19
1
1
0
1
51
30
18
1
1
0
1
52
30
17
1
1
0
1
53
30
17
2
1
0
1
54
31
16
2
1
0
1
55
31
15
2
1
0
1
56
31
14
2
1
0
1
57
32
14
2
1
0
1
58
32
13
2
1
0
1
59
33
12
2
1
0
1
60
33
12
2
1
0
1
61
34
11
2
1
0
1
62
35
11
2
1
0
1
63
36
10
2
1
0
1
64
36
10
2
1