|
|
RESPONDENT
|
|
. Can. Wildlife Serv.
|
|
|
SITE NAME
|
|
Mackenzie River delta, Canada
|
|
| Contact details
(phone/fax//e-mail//address): |
| // //
|
|
PROJECT DETAILS |
|
|
|
Start of survey:
|
End
of survey: |
Team
size: |
|
|
|
|
|
WEATHER
CONDITIONS
|
|
|
|
|
|
|
|
|
|
| Date of ice-break on
rivers: |
|
|
| Date of final loss of
snow: |
|
|
BIOTIC
CONDITIONS
|
| Rodents abundance evaluation: |
|
|
|
Breeding conditions:
|
The Mackenzie Delta region and nearby parts of the Western Arctic mainland are one of the most important breeding areas for Tundra Swans in North America and support about 1/3 of the Eastern Population of this species. Surveys carried out in the region in June and August 2005 indicated good numbers of nesting swans and a relatively early nesting season. Overall, 44% of the indicated pairs nested and 84% of those nests produced broods meaning that 37% of the pairs successfully raised broods. These estimates are well above the productivity measured in recent years (2001-03) when the three parameters averaged 39%, 35% and 14% respectively. (J. Hines, CWS, pers. comm.).
|
|
|
Rodent dynamics:
|
|
|
|
Rodent species recorded:
|
|
|
|
|
Summary
of fauna studies: |
|
|
|