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SITE NAME
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Tonskoe Lake, south-eastern 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: |
| Early June was very cold with frequent snowfalls. The first snow-free patches appeared only on 9 -10 June and intense snow-melt started only after 18 June. Water in creeks started to run by 21 June and the major part of the tundra became free of snow. Later, the weather was warm and sunny only between 10 - 20 July, while at other times cold foggy weather with rains prevailed. Air temperature in July ranged from 0øC to 24øC, and averaged 8.3øC. Snow fell on 28 July.
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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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| Arctic Foxes were numerous but did not occupy the dens. Snowy Owl, Rough-legged Buzzard and Long-tailed Skua did not breed. Waders started to nest late: egg-laying started on 24-25 June and for the majority of nests, was completed by 3 July. Breeding success was very low: out of 69 nests of different wader species (on the 12 km2 study area) only two nests of Red-necked Phalarope survived until hatching. Single broods of Little Stint, Dunlin Calidris alpina and Curlew Sandpiper were found also, as well as several broods of Temminck's Stint which were nesting on small islets.
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Rodent dynamics:
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| Lemming numbers were very low (only two Siberian Lemmings were recorded).
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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: |
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