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SITE NAME
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Pyasina Lake north-east extremity, Taimyr, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (3919)468504(h)/(3919)468693(o) // ya.kokorev@norcom.ru // Naberezhnaya Urvantseva 23-271, Norilsk, 663300, Russia
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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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15.07
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25.07
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1
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WEATHER
CONDITIONS
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| Season phenology: |
average
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Weather conditions: |
| Beginning of the second half of July was very warm, with temperatures reaching +30øC. Weather changed rapidly by 20 July, when strong northern wind with rain, hail and snow resulted in temperature decreasing to +3-4øC. However, this cooling continued for 3 days only and had no adverse impact on birds.
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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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| Rodent-specialized avain predators did not breed and wandered in tundra. A single pair of Long-tailed Skuas behaved as nesting birds. Numbers and reproductive performance of waders can be evaluated as average. Numbers of geese and ducks were low and their broods were not seen on lakes, which could be due to disturbance, as 3 derricks were operating within 6-10 km. Population of passerines was dominated by Bluethroat, Common Redpoll, Little Bunting and Red-throated Pipit.
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Rodent dynamics:
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| From 15-25 July 3 Northsiberian Voles Microtus hyperboreus (including 2 juveniles) were caught per 150 conus/nights, installed in the best rodent habitats. Single Collared Lemming was seen. No signs of activities of small mammals were seen on excursions, having 30 km of total length.
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Rodent species recorded:
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| Latin | Abundance |
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| Dicrostonyx torquatus | rare |
| Microtus hyperboreus | rare |
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Summary
of fauna studies: |
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