Table 2. Summary demographic statistics–winter versus summer.
| WINTER | SUMMER | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BW (g) | FAL (mm) | BCI | BW (g) | FAL (mm) | BCI | |||||||||||||
| Demographic Classes | n | Mean (SD) | Range | n | Mean (SD) | Range | n | Mean (SD) | Range | n | Mean (SD) | Range | n | Mean (SD) | Range | n | Mean (SD) | Range |
| Sub-adult | 53 | 628.6 (42.8) | 516–695 | 52 | 156.3 (4.1) | 146.0–166.0 | 52 | 25.8 (2.0) | 20.2–29.6 | 53 | 472(112.0) | 266–772 | 52 | 149 (7.8) | 127.0–161.0 | 52 | 21.1(3.3) | 13.8–29.2 |
| Females | 40 | 629 (44.5) | 516–695 | 39 | 156.2 (4.2) | 147.0–166.0 | 39 | 25.9 (2.1) | 20.2–29.6 | 32 | 486 (118.0) | 291–739 | 31 | 150.5 (8.0) | 140.0–170.5 | 31 | 21.3 (3.5) | 13.8–29.0 |
| Males | 13 | 626 (38.6) | 559–675 | 13 | 156.4 (3.8) | 147.8–162.0 | 13 | 25.6 (1.6) | 22.7–28.4 | 21 | 449 (100.7) | 266–772 | 21 | 146.1 (7.0) | 127.3–162.6 | 21 | 20.8 (2.8) | 16.4–29.2 |
| Adult | 90 | 790 (99.2) | 585–1008 | 90 | 163.3 (5.0) | 152.0–173.0 | 90 | 29.5 (2.9) | 22.6–36.1 | 105 | 741 (77.3) | 563–992 | 103 | 164.5 (4.6) | 153.5–176.8 | 103 | 27.4 (2.4) | 22.0–35.8 |
| Females | 46 | 780 (92.5) | 600–1005 | 46 | 162.1 (4.9) | 152.0–171.4 | 46 | 29.6 (2.8) | 22.8–34.9 | 70 | 719 (56.7) | 563–963 | 68 | 163.8 (4.5) | 153.5–173.4 | 68 | 26.8 (2.2) | 22.0–35.2 |
| Pregnant | 37 | 792 (91.6) | 600–1005 | 37 | 162.3 (5.0) | 152.0–171.4 | 37 | 30 (2.7) | 22.8–34.9 | N/A | N/A | N/A. | N/A. | N/A. | N/A. | N/A. | N/A. | N/A. |
| Not Pregnant | 9 | 732 (84.9) | 645–844 | 9 | 161.1 (4.4) | 155.1–168.4 | 9 | 28.2 (2.8) | 24.1–32.6 | 70 | 719 (56.7) | 563–963 | 68 | 164 (4.5) | 154.0–173.0 | 68 | 26.8 (2.2) | 22.0–35.2 |
| Males | 44 | 800 (105.8) | 585–1,008 | 44 | 164.6 (4.8) | 155.1–173.1 | 44 | 29.4 (3.0) | 22.6–36.1 | 35 | 787 (82.9) | 622–992 | 35 | 165.8 (4.6) | 158.1–176.8 | 35 | 28.6 (3.1) | 24.0–35.8 |
| Total Females | 86 | 710(105.5) | 516–1,005 | 85 | 159.4 (5.4) | 147.0–171.4 | 85 | 27.9 (3.1) | 20.2–34.9 | 102 | 646 (134.7) | 291–963 | 99 | 160 (8.5) | 140.0–173.0 | 99 | 25.1 (3.7) | 13.7–35.1 |
| Total Males | 57 | 761 (119.9) | 559–1,008 | 57 | 162.8 (5.7) | 147.8–173.1 | 57 | 28.6 (3.2) | 22.6–36.1 | 56 | 660 (187.4) | 266–992 | 56 | 158.5 (11.1) | 127.3–176.8 | 56 | 25.7 (4.6) | 16.4–35.8 |
| TOTAL | 143 | 730 (113.8) | 516–1,008 | 142 | 160.7 (5.8) | 147.0–173.1 | 142 | 28.2 (3.1) | 20.2–36.1 | 158 | 651 (155.0) | 266–992 | 155 | 159.2 (9.5) | 127.3–176.8 | 155 | 25.3 (4.0) | 13.8–35.8 |
Seasonal demography statistics (number (n), mean, standard deviation (SD), range, winter and summer) of 301 Grey-headed flying foxes captured over six surveys between September 2015 and February 2018 from the Adelaide Camp, Botanic Park, Adelaide. BW = Body weight, FAL = forearm length, BCI = body condition index = 1,000*(BW/FAL)2