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Table 1 Information on observed mother–infant dyads with respective observation time and raw data set

From: Should I stay or should I go? Initiation of joint travel in mother–infant dyads of two chimpanzee communities in the wild

Study site Dyad (infant/mother) Infant sex Infant age P1 (months) Infant age P2 (months) Observation time (h) Video-recorded interactions (h)
Kanyawara Winza/Wangari M 9–11 21–23 105 15.2
Tembo/Tenkere M 13–15 25–27 119 18.4
Mango/Michelle F 13–15 25–27 87 7.3
Lily/Leona F 3–5a 15–17 60 7.2
Thatcher/Tongo F 16–18 28–30 112 15
Gola/Outamba F 48–50b N/A 45 7.2
Wallace/Wilma M 55–57 67–69 73 10.1
T South Mohan/Mbele F 10–12 22–24 150 11.2
Iniesta/Isha M N/A 10–12 91 12
Solibra/Sumatra M 15–17 27–29 147 14.7
Jeff/Julia M 15c N/A 20 0.4
Kayo/Kinshasa F 19–21 31–33 148 17.0
Ithaka/Isha M 64–66b N/A 41 9.5
Σ 13 6:7 11 10 1198 145.2
  1. The last line provides the total sample size for each column (P1/P2: first/second period of data collection)
  2. aP1 not included since infant was too young
  3. bMothers gave birth to sibling in P2, thus no P2 data available
  4. cDeceased on November 1, 2012