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RESPONDENT
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Ardalion Vinokurov
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SITE NAME
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Pyasina River basin, Taimyr, Russia
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| Contact details
(phone/fax//e-mail//address): |
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PROJECT DETAILS |
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Start of survey:
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End
of survey: |
Team
size: |
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WEATHER
CONDITIONS
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Weather conditions: |
| Spring was prolonged and cold. In some areas many birds lost their nests after heavy rain followed by frost in the second half of June. These included, amongst others, geese, ptarmigans and Lapland Buntings. Most of the large and many of the medium-sized lakes were covered with ice during the whole season. Most rivers had very high water levels and were almost flooding up to the end of July. Snow remained on 10% of the tundra surface, mainly on north-facing slopes. The summer was cool (in June the temperature rarely exceeded +10ø - 12øC), and first snows occurred on 28 July and 2 August.
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| Date of ice-break on
rivers: |
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| Date of final loss of
snow: |
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BIOTIC
CONDITIONS
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| Rodents abundance evaluation: |
low
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Breeding conditions:
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| The number of Arctic Foxes was low everywhere. Breeding success of waders was lower than average everywhere. Big flocks of non-breeding sandpipers and phalaropes occurred along rivers and at polygonal marshes.
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Rodent dynamics:
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| The density of lemmings decreased sharply and they disappeared completely in some places.
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Rodent species recorded:
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Summary
of fauna studies: |
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