  Table I a - Page 1
University of Toronto at Mississauga, Mississauga, Ontario; September 1, 1998;
Co-ordinates = 43°33'N, 79°40'W; Altitude = 152 m;
Magnetic Declination = 10°W (Subtract 10° for True); Magnetic Inclination =
72.30°;
Observer: David Gibo |
| Num. |
Species |
Time |
Flight Behaviour |
Weather |
Field Notes |
| I |
II |
III |
IV |
Va |
Vb |
Part 1 |
Part 2 |
Part 3 |
Est.
Alt. |
Type
of Flt. |
Horiz.
Path |
Vert.
Path |
Mag.
Bear. |
Mag.
Head. |
Wind
Dir. |
Wind
Vel. |
Amb.
Temp. |
Thrm.
Act. |
Cloud
Types |
| Start |
- |
10:00 |
- |
- |
- |
- |
- |
- |
SE |
- |
- |
yes |
50%
cumulus |
Observations were made in a parking lot north of the South Building
|
| 1 |
Danaus
plexippus |
10:02 |
300 m |
glide |
straight |
descend |
300° |
left |
150° |
1.3 m/s |
23.0°C |
yes |
50%
cumulus |
Butterfly started at 300 m and
glided down to 200 m. Two more D. plexippus were seen. Both were
flapping, one at 3 m and one at 10 m. |
| 2 |
D. plexippus |
10:09 |
300 m |
soar |
circle,
straight,
variable |
climb |
- |
- |
calm |
- |
24°.0C |
yes |
50%
cumulus |
Butterfly was in a strong thermal
centered over the parking lot and vanished almost directly overhead as it climbed
past 300 m. |
| 3 |
D. plexippus |
10:17 |
300 m |
soar |
variable |
level |
267° |
- |
calm |
- |
22.0°C |
yes |
50%
cumulus |
Butterfly turned (rotated it's heading) from one side to the other,
resulting in an S shaped track - searching for stronger lift? Lost a few minutes
while demonstrated how to watch migrating monarch butterflies to a Zoology Graduate
Student. |
4 |
D. plexippus |
10:25 |
300 m |
soar,
glide,
flap |
circle,
straight
variable |
climb,
descend |
215° |
right |
calm |
- |
20.0°C |
yes |
50%
cumulus |
Butterfly glided down, encountered a thermal and soared upward,
then left the thermal and glided to another. It did this three times. A
swift (or swallow) was also seen briefly in the field of view. |