Table 2
Individual forelimb preferences in sugar glider
Subject Sex Age Feeding on Supporting of tripedal stance Nest-material collecting
Non-living food Live insects
HI z Pref HI z Pref HI z Pref HI z Pref
1 M 42 −0.50 −2.50 R −0.22 −1.17 A −0.49 −3.26 R −0.36 −1.61 A
2 M 25 −0.21 −0.94 A −0.17 −0.83 A −0.62 −4.08 R −0.60 −2.87 R
3 M 27 −0.36 −1.71 A 0.11 0.50 A −0.15 −0.87 A −0.20 −0.80 A
4 M 15 −0.71 −3.54 R −0.50 −2.89 R −0.23 −1.46 A – – –
5 M 16 0.43 1.80 L 0.39 2.19 L 0.79 5.25 L 0.76 3.60 L
6 M 13 −0.14 −0.57 A −0.22 −1.17 A −0.06 −0.29 A −0.52 −2.44 R
7 M 13 0.64 3.32 L 0.50 2.89 L 0.28 1.76 A 0.12 0.40 A
8 M 12 −0.50 −2.24 R −0.44 −2.28 R −0.66 −4.38 R – – –
9 M 6 −0.57 −2.90 R −0.89 −5.17 R −0.87 −5.83 R −0.44 −2.02 R
10 M 10 0.14 0.57 A −0.28 −1.50 A −0.23 −1.46 A −0.28 −1.20 A
11 M 15 0.79 3.97 L 0.56 3.24 L 0.40 2.66 L – – –
12 M 6 0.21 0.94 A 0.11 0.50 A 0.57 3.79 L 0.04 0.00 A
13 F 48 0.71 3.54 L 0.67 3.83 L 0.87 5.83 L 0.84 4.00 L
14 F 46 0.43 1.80 L 0.39 2.19 L −0.06 −0.29 A 0.60 2.87 L
15 F 45 −0.07 −0.19 A −0.17 −0.83 A −0.15 −0.87 A −0.68 −3.32 R
16 F 25 −0.86 −4.35 R −0.50 −2.89 R −0.75 −4.96 R −0.28 −1.20 A
17 F 26 0.21 0.94 A 0.56 3.24 L 1.00 6.71 L 0.76 3.60 L
18 F 24 0.50 2.50 L 0.61 3.62 L 0.45 2.96 L 0.52 2.44 L
19 F 17 0.79 3.97 L 0.72 4.17 L 0.70 4.38 L 0.92 4.40 L
20 F 13 0.64 3.32 L 0.61 3.62 L 0.75 4.96 L 0.68 3.32 L
21 F 8 0.79 3.97 L −0.11 −0.50 A 0.28 1.76 A 0.12 0.40 A
22 F 10 0.43 1.80 L 0.22 1.17 A 0.40 2.66 L – – –
23 F 12 0.57 2.90 L 0.44 2.28 L 0.91 6.13 L 1.00 4.80 L

(HI: handedness index; z: z score, positive values indicate leftward bias, negative values indicate rightward bias; Pref: forelimb preference, L: left forelimb; R: right forelimb; A: ambipreferent. Age is given in months).

Giljov et al. BMC Evolutionary Biology 2013 13:61   doi:10.1186/1471-2148-13-61

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