1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
Data from which conclusions were drawn in the article "Sleep in
Mammals: Ecological and Constitutional Correlates" by Allison, T. and
Cicchetti, D. (1976), _Science_, November 12, vol. 194, pp. 732-734.
Includes brain and body weight, life span, gestation time, time
sleeping, and predation and danger indices for 62 mammals.
Variables below (from left to right) for Mammals Data Set:
species of animal
body weight in kg
brain weight in g
slow wave ("nondreaming") sleep (hrs/day)
paradoxical ("dreaming") sleep (hrs/day)
total sleep (hrs/day) (sum of slow wave and paradoxical sleep)
maximum life span (years)
gestation time (days)
predation index (1-5)
1 = minimum (least likely to be preyed upon)
5 = maximum (most likely to be preyed upon)
sleep exposure index (1-5)
1 = least exposed (e.g. animal sleeps in a
well-protected den)
5 = most exposed
overall danger index (1-5)
(based on the above two indices and other information)
1 = least danger (from other animals)
5 = most danger (from other animals)
Note: Missing values denoted by -999.0
For more details, see
Allison, Truett and Cicchetti, Domenic V. (1976), "Sleep in Mammals:
Ecological and Constitutional Correlates", _Science_, November 12,
vol. 194, pp. 732-734.
African elephant 6654.000 5712.000 -999.0 -999.0 3.3 38.6 645.0 3 5 3
African giant pouched rat 1.000 6.600 6.3 2.0 8.3 4.5 42.0 3 1 3
Arctic Fox 3.385 44.500 -999.0 -999.0 12.5 14.0 60.0 1 1 1
Arctic ground squirrel .920 5.700 -999.0 -999.0 16.5 -999.0 25.0 5 2 3
Asian elephant 2547.000 4603.000 2.1 1.8 3.9 69.0 624.0 3 5 4
Baboon 10.550 179.500 9.1 .7 9.8 27.0 180.0 4 4 4
Big brown bat .023 .300 15.8 3.9 19.7 19.0 35.0 1 1 1
Brazilian tapir 160.000 169.000 5.2 1.0 6.2 30.4 392.0 4 5 4
Cat 3.300 25.600 10.9 3.6 14.5 28.0 63.0 1 2 1
Chimpanzee 52.160 440.000 8.3 1.4 9.7 50.0 230.0 1 1 1
Chinchilla .425 6.400 11.0 1.5 12.5 7.0 112.0 5 4 4
Cow 465.000 423.000 3.2 .7 3.9 30.0 281.0 5 5 5
Desert hedgehog .550 2.400 7.6 2.7 10.3 -999.0 -999.0 2 1 2
Donkey 187.100 419.000 -999.0 -999.0 3.1 40.0 365.0 5 5 5
Eastern American mole .075 1.200 6.3 2.1 8.4 3.5 42.0 1 1 1
Echidna 3.000 25.000 8.6 .0 8.6 50.0 28.0 2 2 2
European hedgehog .785 3.500 6.6 4.1 10.7 6.0 42.0 2 2 2
Galago .200 5.000 9.5 1.2 10.7 10.4 120.0 2 2 2
Genet 1.410 17.500 4.8 1.3 6.1 34.0 -999.0 1 2 1
Giant armadillo 60.000 81.000 12.0 6.1 18.1 7.0 -999.0 1 1 1
Giraffe 529.000 680.000 -999.0 .3 -999.0 28.0 400.0 5 5 5
Goat 27.660 115.000 3.3 .5 3.8 20.0 148.0 5 5 5
Golden hamster .120 1.000 11.0 3.4 14.4 3.9 16.0 3 1 2
Gorilla 207.000 406.000 -999.0 -999.0 12.0 39.3 252.0 1 4 1
Gray seal 85.000 325.000 4.7 1.5 6.2 41.0 310.0 1 3 1
Gray wolf 36.330 119.500 -999.0 -999.0 13.0 16.2 63.0 1 1 1
Ground squirrel .101 4.000 10.4 3.4 13.8 9.0 28.0 5 1 3
Guinea pig 1.040 5.500 7.4 .8 8.2 7.6 68.0 5 3 4
Horse 521.000 655.000 2.1 .8 2.9 46.0 336.0 5 5 5
Jaguar 100.000 157.000 -999.0 -999.0 10.8 22.4 100.0 1 1 1
Kangaroo 35.000 56.000 -999.0 -999.0 -999.0 16.3 33.0 3 5 4
Lesser short-tailed shrew .005 .140 7.7 1.4 9.1 2.6 21.5 5 2 4
Little brown bat .010 .250 17.9 2.0 19.9 24.0 50.0 1 1 1
Man 62.000 1320.000 6.1 1.9 8.0 100.0 267.0 1 1 1
Mole rat .122 3.000 8.2 2.4 10.6 -999.0 30.0 2 1 1
Mountain beaver 1.350 8.100 8.4 2.8 11.2 -999.0 45.0 3 1 3
Mouse .023 .400 11.9 1.3 13.2 3.2 19.0 4 1 3
Musk shrew .048 .330 10.8 2.0 12.8 2.0 30.0 4 1 3
N. American opossum 1.700 6.300 13.8 5.6 19.4 5.0 12.0 2 1 1
Nine-banded armadillo 3.500 10.800 14.3 3.1 17.4 6.5 120.0 2 1 1
Okapi 250.000 490.000 -999.0 1.0 -999.0 23.6 440.0 5 5 5
Owl monkey .480 15.500 15.2 1.8 17.0 12.0 140.0 2 2 2
Patas monkey 10.000 115.000 10.0 .9 10.9 20.2 170.0 4 4 4
Phanlanger 1.620 11.400 11.9 1.8 13.7 13.0 17.0 2 1 2
Pig 192.000 180.000 6.5 1.9 8.4 27.0 115.0 4 4 4
Rabbit 2.500 12.100 7.5 .9 8.4 18.0 31.0 5 5 5
Raccoon 4.288 39.200 -999.0 -999.0 12.5 13.7 63.0 2 2 2
Rat .280 1.900 10.6 2.6 13.2 4.7 21.0 3 1 3
Red fox 4.235 50.400 7.4 2.4 9.8 9.8 52.0 1 1 1
Rhesus monkey 6.800 179.000 8.4 1.2 9.6 29.0 164.0 2 3 2
Rock hyrax (Hetero. b) .750 12.300 5.7 .9 6.6 7.0 225.0 2 2 2
Rock hyrax (Procavia hab) 3.600 21.000 4.9 .5 5.4 6.0 225.0 3 2 3
Roe deer 14.830 98.200 -999.0 -999.0 2.6 17.0 150.0 5 5 5
Sheep 55.500 175.000 3.2 .6 3.8 20.0 151.0 5 5 5
Slow loris 1.400 12.500 -999.0 -999.0 11.0 12.7 90.0 2 2 2
Star nosed mole .060 1.000 8.1 2.2 10.3 3.5 -999.0 3 1 2
Tenrec .900 2.600 11.0 2.3 13.3 4.5 60.0 2 1 2
Tree hyrax 2.000 12.300 4.9 .5 5.4 7.5 200.0 3 1 3
Tree shrew .104 2.500 13.2 2.6 15.8 2.3 46.0 3 2 2
Vervet 4.190 58.000 9.7 .6 10.3 24.0 210.0 4 3 4
Water opossum 3.500 3.900 12.8 6.6 19.4 3.0 14.0 2 1 1
Yellow-bellied marmot 4.050 17.000 -999.0 -999.0 -999.0 13.0 38.0 3 1 1
The above data set can be freely used for non-commercial purposes and
can be freely distributed (permission in writing obtained from Dr.
Truett Allison).
Submitted by Roger Johnson
rjohnson@carleton.edu
|
