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RESPONDENT
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Dmitri Karelin
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SITE NAME
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Nayvan Lake, Provideniya Bay, Chukotka, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (095)495-15-55 (home); (095)939-22-54 (off.) // dkarelin@pochta.ru;dkarelin@cepl.rssi.ru // Dmitrovskoe Shosse, apt.61, block 1, build. 99, Moscow, 127247, 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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10.07
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25.08
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2
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WEATHER
CONDITIONS
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Weather conditions: |
| The weather conditions between 10 July and 25 August were warmer than usually (+9.9^C versus the average of +7.4^C). No other abnormal weather events were recorded.
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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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| Numbers of large mammalian predators (foxes, wolves and brown bears) in the area are very low and herbivores are practically absent. In comparison with the previous decades intensity of the track-based vehicle traffic on tundra dropped considerably. No Snowy Owls and skuas were seen. Overall the situation was favourable for breeding birds. Nonetheless the wader density was extremely low: only two pairs of Ringed Plover and 1 of Mongolian Plover Charadrius mongolus were noted; according to Tikhomirov (1957) this is a typical situation for the area.
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Rodent dynamics:
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| No lemmings were seen, prey collected by a Stoat family contained only voles. Arctic Ground-Squirrels Spermophilus parryii were common throughout the area but especially on south-facing slopes and in river valleys where their density reached 10-12 individuals/ha.
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Rodent species recorded:
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Summary
of fauna studies: |
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