|
|
|
|
SITE NAME
|
|
Khanovey field station, middle Yamal, Russia
|
|
| Contact details
(phone/fax//e-mail//address): |
| // //
|
|
PROJECT DETAILS |
|
|
|
Start of survey:
|
End
of survey: |
Team
size: |
|
|
|
|
|
WEATHER
CONDITIONS
|
| Season phenology: |
average
|
|
|
Weather conditions: |
| The timing of spring was normal with no late frosts recorded. By 8 June 90% of tundra was free from snow and river ice had disappeared by 9 June. On 10-11 June extremely high water levels were recorded which resulted in a large part of the study plot being flooded. Summer was warm, unusually dry, and without sharp temperature drops.
|
|
|
|
|
|
|
|
| Date of ice-break on
rivers: |
|
|
| Date of final loss of
snow: |
|
|
BIOTIC
CONDITIONS
|
| Rodents abundance evaluation: |
low
|
|
|
Breeding conditions:
|
| Arctic Foxes and other terrestrial predators were almost absent. Skuas bred at low densities, and during the whole season a lot of nomadic birds were present. On the whole conditions were favourable for wader breeding. Slight decreases in breeding density of some waders (Ruff, phalaropes) was probably connected with the loss of clutches during the spring flood, which happened exactly at the time of egg-laying. Little Stints did not breed. The average breeding success of waders was rather high: chicks hatched in 87% of nests (n=37). Incubation success calculated according to Mayfield-Paevsky method (n=40 nests) was 90%. The most noticeable failures happened in the post-nesting period, when skuas and buzzards fed on bird chicks due to the lack of rodents.
|
|
|
Rodent dynamics:
|
| Numbers of rodents, especially lemmings, were extremely low.
|
|
Rodent species recorded:
|
|
|
|
|
Summary
of fauna studies: |
|
|
|