Table 1. Summary of survey effort for 47 squirrel gliders (Petaurus norfolcensis) tracked along the Hume Freeway and at control sites, southeastern Australia from October 2005 to December 2006. n, number of individuals; fixes are number of detections from radio-tracking during the day (diurnal) or night (nocturnal) or from trapping; days, mean number of days on which fixes were obtained. Values are means ± 1 SE.


Treatment and sex n Diurnal fixes Nocturnal fixes Trapping fixes Total fixes Days
Hume Freeway, tall trees in median (n = 3)
Male 7 9.4 ± 3.0 31.7 ± 4.7 2.7 ± 0.7 307 36.9 ±6.6
Female 11 8.0 ± 1.4 31.5 ± 3.4 3.9 ± 0.7 469 35.8 ± 3.9
             
Hume Freeway, no tall trees in median (n = 3)
Male 10 9.3 ± 2.4 34.4 ± 3.1 3.1 ± 0.3 468 42.3 ± 4.1
Female 6 10.2 ± 2.8 36.7 ± 3.6 2.8 ± 0.6 298 44.5 ± 4.5
             
Control sites (n = 2)
Male 7 7.2 ± 1.7 22.7 ± 0.7 4.6 ± 1.4 234 29.3 ± 2.9
Female 6 8.2 ± 1.8 22.8 ± 0.8 5.2 ± 1.3 217 32.3 ± 1.4