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RESPONDENT
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Vasili Baranyuk
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SITE NAME
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Tundrovaya River valley, Wrangel Island, Russia
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| Contact details
(phone/fax//e-mail//address): |
| (095)441-12-16 // vvbar@vvbar.msk.ru // Lomonosovsky Pr., 35-40, Moscow, 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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WEATHER
CONDITIONS
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Weather conditions: |
| Spring was cold and started two weeks later than in several previous years.
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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: |
average
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Breeding conditions:
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| Arctic Foxes and Snowy Owls bred locally, probably only in areas with higher density of lemmings. Similar patchy distribution was typical for waders as well, most obviously in Knot. Nests and broods were found in all numerous wader species, which had average numbers. This season was characterized by early autumn frosts (snow cover already existed by the beginning of September), and this negatively influenced the breeding success of some bird species (for example Snow Geese Anser caerulescens). Such conditions probably influenced some wader species as well.
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Rodent dynamics:
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| Lemming populations were increasing after the 1991 population low point, but some declines occurred again in mid-summer.
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Rodent species recorded:
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Summary
of fauna studies: |
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