Table 2 Summary of the study groups.

From: Quadratic relationships between group size and foraging efficiency in a herbivorous primate

Group

Average group size

Group size range

Daily travel meters

Time spent traveling

Time spent feeding

Energy Intake kJ/min

Energy intake kJ per site

Meters between sites

URU

3.2

(3–5)

—

16.5%

46.5%

—

—

—

INS

4.0

(4–4)

493.6 ± 289.8

8.0%

47.7%

—

—

—

TIT

5.9

(5–7)

—

10.7%

46.2%

—

—

—

ISA

7.0

(7–7)

—

9.2%

46.4%

—

—

—

BWE

7.0

(6–8)

939.7 ± 382.1

9.3%

42.6%

81.4 ± 64.0

167.4 ± 169.5

5.1 ± 7.8

NTA

9.0

(9–9)

651.8 ± 302.0

14.9%

44.3%

82.3 ± 63.7

192.7 ± 198.4

4.5 ± 4.6

KUY

10.9

(9–12)

769.3 ± 300.4

13.5%

45.6%

—

—

—

UGE

11.2

(8–14)

—

13.0%

50.2%

—

—

—

PAB

38.8

(38–39)

730.0 ± 257.6

10.4%

39.1%

116.0 ± 128.2

246.3 ± 286.0

4.3 ± 4.7

  1. Average and range for the number of weaned gorillas per group. Average and standard deviation for the daily travel distances (meters). Proportion of time spent traveling and feeding. Average and standard deviation for the energy intake rates, energy intake per food site, and distance travelled between food sites.