|
|
|
SITE NAME
|
Bolshaya Chukochiya River lower reaches, Russia
|
|
| Contact
details (phone/fax//e-mail//address): |
| // // |
|
PROJECT DETAILS
|
|
Start of survey:
|
End
of survey:
|
Team
size:
|
|
|
|
|
|
WEATHER CONDITIONS
|
|
|
|
Weather conditions: |
| Snow level was lower than average, which led to tundra becoming snow-free 10-15 days earlier than in 1994. Flood was low. Summer was moderately wet, relatively windless, with average and unfluctuating temperature. |
|
|
|
|
|
|
|
| Date of ice-break
on rivers: |
|
|
| Date of final loss
of snow: |
|
|
BIOTIC CONDITIONS
|
| Rodents abundance evaluation: |
high |
|
Breeding conditions:
|
| Buzzards and Long-tailed Skuas nested successfully, breeding Arctic Foxes occupied almost all dens. Only Snowy Owl was rare and did not breed. Very favourable conditions for waders. |
|
|
Rodent dynamics:
|
| Siberian and Collared Lemmings' numbers grew 5 times compared to 1994 during winter, and approached peak level. Relative density (animals per 100 trap-nights*100) was 14% in June, 28% in July and 18% in August.
|
|
Rodent species recorded:
|
| Latin | Abundance |
|---|
| Lemmus sibiricus | abundant |
|
|
|
Summary
of fauna studies: |
|
|