. The Canadian field-naturalist. Natural history. 1995 Pettit, Bishop, and Brooks: The Snapping Turtle in Hamilton Harbour 195. Turtle 1 * - radio-telemetry sighting ^-home range Turtle 2 ? - radio-telemetry sighting q^- home range Figure 2. Examples of home ranges of female Snapping Turtles with a single (Turtle 1) and with multiple centres of activi- ty (Turtle 2) in Cootes Paradise, Ontario, 1990. outside of West Pond in 1990, returned to West Pond on 10 May 1991, then returned to the area used in 1990 on 12 July 1991 and stayed there for the rest of the summer. Thus, he switched from a sin
. The Canadian field-naturalist. Natural history. 1995 Pettit, Bishop, and Brooks: The Snapping Turtle in Hamilton Harbour 195. Turtle 1 * - radio-telemetry sighting ^-home range Turtle 2 ? - radio-telemetry sighting q^- home range Figure 2. Examples of home ranges of female Snapping Turtles with a single (Turtle 1) and with multiple centres of activi- ty (Turtle 2) in Cootes Paradise, Ontario, 1990. outside of West Pond in 1990, returned to West Pond on 10 May 1991, then returned to the area used in 1990 on 12 July 1991 and stayed there for the rest of the summer. Thus, he switched from a single centre to two centres of activity. This may have been an artifact of the date of capture (late June) in 1990 rather than an actual change of habit by the turtle. Distance Travelled In 1990, the maximum distance recorded for female turtles away from the nesting site was 370 to 2020 m (X = 1053 ± 529 m, N = 15). The maximum length of the home range excluding migrations in one summer by any radio-tagged turtle in 1990 was 2020 m and the minimum was 340 m. In 1991, length of tagged turtles' home range varied from 280 m to 1740 m. There was no significant differ- ence between the mean length of home range in 1990 and 1991 for either sex (9: T = , p > ; c?: T =, p> ). During June - 31 August 1990, the distance trav- elled within any given week was 0 to 3730 m. Total distance travelled between all observations made during June - 31 August 1990 ranged from 2490 m to 10770 m by females and ranged from 1210 m to 3670 m for males. Significant differences in total distance travelled between sightings existed among turtles (p = , r-= ) and among weeks (p = , r-= ) during June - August 31 1990. Female turtles travelled significantly more per week (x = 588 ± 607 m) than males (x = 209 ± 235 m) (T = , p = , df = 143). During June - 31 August 31 1991, the distance travelled within any given week was 0 to 2080 m. Total distance travelled
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