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SITE NAME
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Bikada River, Taimyr, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (499)780-16-53 // taimyr@orc.ru // Glavnaya St. 19A-193, Moscow, 105173, Russia
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PROJECT DETAILS |
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Project name:
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Field group of the Taimyr Reserve
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Start of survey:
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End
of survey: |
Team
size: |
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15.06
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19.07
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3
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WEATHER
CONDITIONS
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Weather conditions: |
| The spring was late, but snowmelt was quick due to small amount of snow. Flood was lower than usual. Air temperature had pronounced fluctuations; abundant rains occurred between 5-7 July and 12-16 August. Precipitation from 5-7 July reached 100 mm, and all nests on gravel spits of the Bikada River were flooded. A period 16-22 August was hot.
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| Date of 50%
snow-cover: |
15 June
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| Date of ice-break on
rivers: |
25 June
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| Date of final loss of
snow: |
23 June
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BIOTIC
CONDITIONS
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| Rodents abundance evaluation: |
low
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Breeding conditions:
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| Arctic Foxes were rare, and not breeding. Snowy Owls were seen, but did not breed, Buzzard was breeding with low density (5 nests/550 sq.km) and entirely unsuccessful. 90% of tundra bird nests were depredated by Arctic Foxes, including clutches of gulls, ducks and Brent Geese in colonies on the river islands. Ringed Plover nests were flooded. Early nesting passerines were more successful breeders than waders. Unusually numerous on breeding were Steller Eiders, while Red-necked Phalarope, Ruff, Temminck's Stint (recorded previously) were missing.
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Rodent dynamics:
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| A single Siberian Lemming was seen during summer.
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Rodent species recorded:
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| Latin | Abundance |
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| Lemmus sibiricus | rare |
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Summary
of fauna studies: |
| Lemming counts using trap lines did not result in catching of a single animal. Also Arctic Fox dens were explored and nests of waders, anseriformes and gulls were searched for.
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